Porsche windscreen replacement

What Porsche windscreen features mean

Tap a feature to see what it is, how to spot it on your car, and how it affects glass replacement. We confirm the exact match for your vehicle when you book.

• Green84

  1964–2026

  Green tint reduces glare and improves visual comfort by filtering certain light wavelengths.

  What it means

  Green tint is a light-filtering coating applied to the glass during manufacture. It absorbs and reduces transmission of certain wavelengths of light, primarily to cut glare from sunlight and reflections. The tint is subtle — often barely visible to the naked eye — but measurably improves visual comfort during prolonged driving, particularly in bright conditions. It's a factory specification chosen by the vehicle manufacturer to balance daylight comfort with interior visibility and aesthetic consistency across all glass in the vehicle.

  How to tell

  The easiest way to check is to roll your side window halfway down and hold a piece of white paper behind it. Look carefully for a tint cast — green tint will appear as a subtle green hue compared to clear glass. Your windscreen will have the same tint as your side windows. You can also ask your vehicle's dealership or service centre — they'll have the original specification on file.

  Replacement impact

  Green-tinted replacement glass must match the original tint specification to maintain visual consistency across all windows and preserve the vehicle's interior aesthetics. Aftermarket OE-equivalent (OEE) green-tinted glass is widely available, though some vehicles may require original equipment (OEM) dealership glass if the tint specification is proprietary. Tint does not affect calibration, cure time, or installation procedure — it's a cosmetic and functional specification only.

• Vin Notch76

  1993–2026

  A printed VIN reference box along the bottom edge of your windscreen helps identify your vehicle's chassis number at a glance.

  What it means

  A VIN (Vehicle Identification Number) notch is a small printed or etched box positioned along the lower edge of the windscreen that displays your vehicle's chassis number. This reference marking is a manufacturing and administrative feature, allowing quick visual identification of the vehicle without needing to consult documents. It's particularly useful for service records, insurance claims, and vehicle registration purposes. The notch itself doesn't affect the structural integrity or safety performance of the glass.

  How to tell

  Look along the bottom edge of your windscreen — typically in one of the lower corners — for a small rectangular box containing printed digits or characters. If you're uncertain, check your vehicle's service handbook or ask your dealership or service centre to confirm whether your model includes this feature.

  Replacement impact

  When your windscreen is replaced, the new glass will retain the VIN notch printed or etched by the manufacturer. This is a standard feature on replacement windscreens for compatible vehicles and requires no additional work or adjustment. The notch does not affect glass fitting, cure time, or any post-replacement calibration procedures.

• Rain Sensor66

  2002–2026No calibration after replacement

  Your wipers automatically activate when rain falls on the windscreen.

  What it means

  A rain sensor is a device mounted on or behind the windscreen that detects moisture and triggers the wiper system automatically. The sensor uses infrared light to measure water droplets on the glass surface and signals the vehicle's electrical system to engage the wipers without driver input. This feature improves safety in sudden downpours and reduces driver workload in variable weather conditions.

  How to tell

  Check your windscreen for a small sensor unit, usually mounted near the top centre behind the glass or at the base of the mirror. Look for a small dark component or lens. If your vehicle has automatic wipers that activate without you toggling the stalk, you have a rain sensor. Ask your dealer or service centre to confirm; they can check your vehicle records or wiper module settings.

  Replacement impact

  Rain sensors are non-structural elements and do not require recalibration after windscreen replacement. The sensor bracket or mounting may need careful removal and reinstallation to ensure it sits correctly behind the new glass. If the sensor itself is damaged during removal, a replacement unit may be needed. Your fitter will confirm the condition and refit or replace the sensor as part of the standard replacement procedure.

• Antenna59

  1964–2026

  An aerial laminated into the windscreen or rear window restores radio, DAB or TV reception without a roof-mounted mast.

  What it means

  An antenna is a conductive print laminated into the glass during manufacture, typically used for radio, DAB (digital audio broadcasting) or television reception. It replaces the traditional roof-mounted aerial mast found on older vehicles. The antenna is integrated into the glass interlayer and connected to the vehicle's receiver unit via a connector embedded in the glass edge. This design offers a cleaner aesthetic, reduces wind noise, and eliminates the vulnerability of a protruding mast to damage or theft.

  How to tell

  Check your vehicle's roof — if there is no visible aerial mast, your car likely has a laminated antenna. You can also ask your dealer or service centre whether your windscreen or rear window carries an antenna print. The connector may be visible on the glass edge or inside the door frame trim.

  Replacement impact

  When replacing glass with a laminated antenna, the replacement must carry the matching antenna print and connector to restore reception immediately on fitting. Aftermarket or original-equipment glass with the correct antenna specification is essential; a plain replacement will leave you without radio or DAB signal. Our fitters verify the antenna specification during booking and source the correct variant before the appointment.

• Solar Control46

  2002–2026

  Solar control glass absorbs infrared rays to reduce heat and improve cabin comfort.

  What it means

  Solar control is a coating applied to the windscreen that absorbs the sun's infrared radiation rather than allowing it to pass through into the cabin. This reduces solar heat gain, helping to keep the interior cooler and more comfortable, particularly in warm weather or direct sunlight. The coating is transparent to visible light, so it doesn't darken the windscreen or affect visibility. It's a passive thermal management feature that works continuously whenever the sun is shining on the glass.

  How to tell

  Check your vehicle's specification sheet or contact your dealership service centre to confirm whether solar control glass is fitted. Some manufacturers list it as 'solar control windscreen', 'heat-reflective glass', or 'thermal management glass'. It's a factory-fitted feature and won't be visibly obvious from outside the car — the coating is integral to the glass itself.

  Replacement impact

  Solar control glass is a factory-fitted specification. When replacing the windscreen, a solar control variant must be sourced to match the original. This is a standard glass type with no special fitting implications or calibration requirements. Cure and drive-away times follow normal windscreen bonding procedures. Confirm with your fitter that the replacement glass includes solar control to maintain the original thermal performance.

• Camera37

  2011–2026Calibration varies by vehicle

  A camera mounted near the rear-view mirror monitors the road ahead for lane-keep and traffic-sign features.

  What it means

  A forward-facing camera positioned in the windscreen header area (typically mounted on or near the rear-view mirror bracket) captures video of the road ahead. This camera feeds data to driver-assistance systems such as lane-departure warning, lane-keep assist, autonomous emergency braking, and traffic-sign recognition. The camera is a core component of modern ADAS (Advanced Driver Assistance Systems) and requires precise alignment after windscreen replacement to ensure these safety features function correctly.

  How to tell

  Look for a small dark triangular or lens-shaped component mounted in the black plastic trim area above the windscreen, typically centred near the rear-view mirror or slightly to one side. Your vehicle's handbook or infotainment menu may reference 'Lane Assist', 'Traffic Sign Recognition', or 'Autonomous Emergency Braking'. Ask your dealer or service centre directly if your car is equipped with a forward-facing camera system.

  Replacement impact

  Windscreen replacement on camera-equipped vehicles requires calibration of the camera system after the new glass is fitted. The exact calibration procedure—whether static (using a target board in a controlled environment) or dynamic (road-based)—varies by vehicle make, model, and year. We confirm the precise calibration requirement when we look up your specific vehicle. Calibration ensures lane-keep, sign recognition, and emergency-braking systems function safely. This may extend the fitting schedule and may necessitate workshop-based fitting rather than mobile attendance.

  Calibration mix across our Porsche variants

  • 4Static

  We confirm the exact procedure for your specific vehicle when you book.

• Grey Sun Strip33

  2004–2026

  A grey-tinted band across the top of your windscreen that reduces glare from sunlight and reflections above.

  What it means

  A grey sun strip is a tinted gradient band built into the top edge of the windscreen during manufacture. It sits within the laminated glass layers and gradually fades from opaque grey at the very top to clear further down. The strip is designed to reduce glare and reflections from sunlight, street lights, and oncoming headlights, improving comfort and visibility for the driver without obstructing the view of traffic signals or overhead hazards. Sun strips are a factory-applied feature unique to windscreens—they cannot be added to side or rear glass because those are typically toughened rather than laminated.

  How to tell

  Look at the top of your windscreen from inside the vehicle. You will see a grey-tinted band that fades to clear glass. The tint is gradual and integral to the glass itself, not a removable film or coating. Your vehicle's service records or handbook may also list it as a standard feature. If unsure, ask your dealer or service centre whether your specific model includes a sun strip.

  Replacement impact

  When replacing a windscreen with a sun strip, the replacement glass must be sourced in the exact matching variant—including the sun-strip tint and fade profile. Aftermarket and OE glass are both available for most vehicles, but the variant must be correct to match your original. There is no calibration required for the sun strip itself. If your windscreen also carries camera or sensor features, those will be calibrated separately according to your vehicle's needs.

• Bracket For Safety Features30

  2011–2026Calibration varies by vehicle

  The moulded trim that surrounds your camera and sensor cluster at the top of the windscreen, typically transferred or supplied with replacement glass.

  What it means

  A bracket for safety features is the moulded plastic or composite shroud that sits at the top of the windscreen, framing and protecting the camera and sensor cluster mounted behind the rear-view mirror. This trim cover houses forward-facing driver-assistance cameras and sensors — equipment that monitors the road ahead for lane-keeping, collision warning, adaptive cruise control, and similar safety functions. The bracket itself is part of the vehicle's structural frame, but the trim cover you see is what protects and aesthetically integrates the technology into the windscreen area.

  How to tell

  Look at the top centre of your windscreen, just above or around the rear-view mirror. If you see a dark moulded shroud or trim panel — often rectangular or tapered — with a visible lens or sensor window, your vehicle has a bracket for safety features. Your service history or handbook will list any ADAS (Advanced Driver Assistance System) technologies fitted. Ask your dealer or service centre if your vehicle has forward-facing cameras or sensors; if it does, you have a bracket for safety features.

  Replacement impact

  On windscreen replacement, the trim cover is typically transferred from your old glass to the new one, or supplied pre-integrated with the replacement depending on the variant. This means minimal disruption to your safety system during the swap. However, if the bracket requires recalibration after glass replacement — which depends on your specific vehicle and camera type — the job may require static calibration (using a target board) or dynamic calibration (a road drive). We confirm the exact calibration procedure when we look up your vehicle.

  Calibration mix across our Porsche variants

  • 1Static

  We confirm the exact procedure for your specific vehicle when you book.

• Acoustic (Noise reduction)24

  2009–2026

  Acoustic glass reduces cabin noise for a quieter, more comfortable ride.

  What it means

  Acoustic windscreen glass is laminated with a special acoustic interlayer that absorbs and dampens sound vibrations. It reduces exterior noise—from traffic, wind, and road surface—before it enters the passenger compartment. This makes the cabin noticeably quieter and creates a more peaceful driving experience. It's a comfort feature, not a safety one; standard laminated windscreens already meet impact safety requirements.

  How to tell

  Check your windscreen for an ear symbol, the word 'Acoustic', a capital 'A', or the term 'SoundScreen' printed in one of the four corners. These markings indicate acoustic-grade glass. You can also ask your vehicle's dealership or service centre whether your model came fitted with acoustic glass—it's often a factory option on comfort or premium trims.

  Replacement impact

  Acoustic glass is always laminated and bonds to the frame like any standard windscreen, so replacement follows the normal bonded-glass procedure. No specialist calibration is required. The replacement technician will fit it using standard adhesive and sealant. Cure time and drive-away restrictions are identical to standard laminated windscreens. Acoustic glass is widely available as an aftermarket OE-equivalent option.

• Static Camera Calibration Process20

  2011–2026Static calibration required

  Static calibration uses printed targets indoors to align your forward-facing camera after windscreen replacement.

  What it means

  Static camera calibration is a procedure in which a forward-facing camera system is realigned using printed target boards positioned at manufacturer-specified distances and heights in front of the vehicle. The vehicle remains stationary indoors throughout. A diagnostic tool reads the camera's view of these targets and adjusts the camera's alignment to factory specification. This ensures the camera can accurately detect road features, lane markings, pedestrians, and other objects — critical for driver-assistance systems like lane-keeping, collision warning, and adaptive cruise control to function safely and reliably.

  How to tell

  Check your vehicle's handbook or ask your dealer's service centre whether your car has a forward-facing camera system that requires calibration after windscreen replacement. Look for driver-assistance features like lane-keeping assist, autonomous emergency braking, or adaptive cruise control on the dashboard menu.

  Replacement impact

  When a windscreen with an integrated or bracket-mounted camera is replaced, the camera's alignment can shift. Static calibration realigns the camera using indoor target boards, which must be performed in a workshop environment where printed targets can be positioned and secured at precise distances. This procedure is conducted after the windscreen is fitted and bonded. The workshop booking accommodates the additional time required for calibration, and we apply the no-split policy — both replacement and calibration happen at the same location on the same visit.

• Green Sun Strip17

  1964–2006

  A green-tinted band at the windscreen's top edge that reduces glare from sunlight above.

  What it means

  A green sun strip is a graduated tint band integrated into the windscreen's laminate at the upper edge. It filters intense sunlight and glare from above — particularly useful on motorways and in bright conditions — whilst maintaining clarity through the main viewing area below. The tint is permanent, fused into the laminate layer during manufacture, and cannot be applied or removed afterwards. Sun strips are a windscreen-only feature because they must be built into the laminate during production; side and rear glass cannot carry them as they are typically toughened rather than laminated.

  How to tell

  Look at the top edge of your windscreen from the inside. A sun strip appears as a distinct green-tinted gradient band that fades from darker at the very top to clear below. It is visible whether the car is parked or moving. You can also check your vehicle's specification sheet or ask your dealership or current service centre to confirm whether your windscreen includes a sun strip.

  Replacement impact

  The replacement windscreen must be the green sun strip variant to match your original. This is not a post-fit addition; it must be ordered as part of the glass itself. Availability is usually straightforward for current and recent models from major manufacturers, though older or less common variants may require a longer lead time. The sun strip does not affect calibration requirements or cure time — it is simply a laminate feature and does not complicate the fitting process.

• Mono Camera16

  2011–2026Calibration varies by vehicle

  A single camera mounted near the rear-view mirror that helps with lane-keeping and collision avoidance.

  What it means

  A mono camera is a single-lens camera positioned behind the windscreen, typically in the upper centre area near the rear-view mirror. It captures the road ahead and uses computer vision to detect lane markings, vehicles, and road hazards. The camera feeds data to driver-assistance systems such as lane-keeping assist, lane-departure warning, and forward-collision warning. It forms the visual foundation of these safety features, allowing the vehicle to monitor road position and surrounding traffic automatically.

  How to tell

  Look in the black trim area above the windscreen, centred behind the rear-view mirror — you will see a small triangular lens assembly or dark lens cover. Check your vehicle handbook or ask your dealer's service department to confirm your model has lane-assistance or collision-warning features; vehicles with these systems almost always have a mono camera. Dashboard warning symbols related to lane or collision systems also indicate the presence of this camera.

  Replacement impact

  When the windscreen is replaced, the camera bracket and lens assembly must be removed and carefully repositioned on the new glass. The camera may require calibration after fitting to ensure accurate road detection and lane recognition. Calibration needs vary by vehicle — we confirm the exact procedure when we look up your specific vehicle. The job may take longer than a standard windscreen replacement, and workshop facilities may be required if calibration demands a controlled environment.

• Coating12

  2010–2026

  Coated windscreens have a blue or purple tint and protect your car from UV rays and heat.

  What it means

  A coated windscreen has a special protective layer applied to the glass that appears as a blue or purple tint and often reflects a silvery-blue colour in bright sunlight. This coating is designed to reduce the amount of ultraviolet (UV) radiation and solar heat that enters the vehicle, helping to keep the interior cooler and protecting upholstery and dashboard components from UV damage and fading. The coating is integral to the glass and doesn't require any special maintenance from you.

  How to tell

  Look at your windscreen in bright daylight — a coated windscreen will show a distinct blue or purple tint and a silvery-blue reflection when the sun hits it directly. Check your vehicle's service booklet or window sticker (usually on the driver's door jamb), which may list the glass specification. Alternatively, ask your dealership or service centre to confirm whether your windscreen carries a UV or heat-rejection coating.

  Replacement impact

  When replacing a coated windscreen, the replacement glass must match the original specification — including the coating type and tint level — to maintain the same UV and heat protection and to preserve the vehicle's interior aesthetics. Original-equipment or equivalent aftermarket coated glass is sourced to specification. The coating is applied during glass manufacture; no post-fit treatment is required. Fitting and cure times are unaffected by the presence of the coating.

• Clear7

  2010–2026Calibration varies by vehicle

  Clear windscreen glass has no tint; most cars have a slight tint as standard.

  What it means

  A clear windscreen contains no added tint layer. Most modern windscreens incorporate a subtle tint (typically blue, green, grey or bronze) as standard to reduce glare, provide UV protection, and improve cabin comfort. A genuinely clear windscreen is the absence of this tint. Clear glass is less common than tinted variants and is sometimes specified for aesthetic or operational reasons, though the tint difference is usually imperceptible to the naked eye.

  How to tell

  Lower your side window halfway and hold a white piece of paper behind it. If you see a noticeable colour cast (blue, green, grey or bronze) in the side glass, your windscreen has the same tint. You can also ask your vehicle's dealership or service centre to confirm the windscreen specification in your service records.

  Replacement impact

  Clear windscreen replacement uses the same installation process as any other windscreen. No special calibration or extended cure time applies. Sourcing is straightforward — clear glass is widely available as an aftermarket replacement. Installation time and drive-away restrictions follow standard windscreen replacement timings. If your vehicle has ADAS features (forward-facing camera or radar), calibration may be required after replacement depending on your specific vehicle; we confirm this when we look up your car details.

  Calibration mix across our Porsche variants

  • 1Static

  We confirm the exact procedure for your specific vehicle when you book.

• GPS6

  2011–2026

  GPS antenna built into the windscreen connects your sat-nav to satellite signals for reliable navigation.

  What it means

  A GPS antenna is laminated into the windscreen glass during manufacture, providing a direct aerial connection for your vehicle's satellite-navigation system. This integrated design offers better signal reception than external antennas and a cleaner aesthetic. The antenna print and electrical connector are engineered into the glass itself, allowing the navigation receiver to lock onto GPS satellites without interference from the vehicle's metal body or other components.

  How to tell

  Check your vehicle's handbook or ask your dealership service centre whether your windscreen carries an integrated GPS antenna. You won't see obvious external aerials or connectors on the glass itself — the antenna is laminated internally. If your sat-nav works reliably without a visible roof-mounted antenna, it's likely GPS-equipped.

  Replacement impact

  Replacement windscreens with GPS antennas must be sourced as OEM (original-equipment) glass to preserve navigation functionality. The antenna print pattern and electrical connector are specific to your vehicle's sat-nav system. Aftermarket glass without the antenna print will not support GPS reception. We confirm OEM availability when you book; lead times may be slightly longer than standard glass.

• Heated Coating5

  2012–2026

  A transparent heating layer in the glass defrosts and defogs the windscreen evenly without visible wires.

  What it means

  Heated coatings are a transparent conductive layer embedded within the laminated windscreen glass itself. Rather than using visible heating filaments, this coating distributes heat evenly across the entire surface when energised. The system defrosts and defogs the windscreen efficiently, typically faster than conventional filament designs, and operates at lower energy consumption. The coating is invisible to the driver and functions as part of the vehicle's climate control system.

  How to tell

  Check your vehicle's windscreen for the absence of visible heating wires or grid lines. Ask your dealership or service centre whether your car has a coated (invisible) heating system rather than filament-based heating. You can also check your handbook under climate control or windscreen features.

  Replacement impact

  Replacement glass must carry the same transparent conductive coating for the heating circuit to function. The coating is applied during manufacturing and cannot be added afterwards. Your replacement windscreen will be sourced as an OE (original equipment) or equivalent coated variant to ensure heating performance. No additional calibration or curing implications arise from the coating itself.

• Heat Reflective5

  2012–2026

  Heat-reflective tinting reduces solar gain and cabin temperature, often visible as a darker shade near the windscreen's top edge.

  What it means

  Heat-reflective tinting is a specially formulated layer applied to the windscreen—usually concentrated in the upper band near the black dots (the frit)—designed to reflect solar radiation and reduce heat buildup inside the vehicle. This helps maintain cabin comfort, reduces air-conditioning load, and can protect interior materials from UV damage. The tint is typically darker or noticeably different in colour than the front side windows, which remain clear or lightly tinted.

  How to tell

  Look at your windscreen from inside the vehicle and compare the tint colour to your front side windows. Heat-reflective windscreens often have a visibly darker or warmer tone, especially in the upper portion within 2 cm of the black-dot edge (the frit). You can also check your vehicle's specification sheet or ask your dealership service centre whether your model includes heat-reflective glazing.

  Replacement impact

  Replacement windscreens with heat-reflective tinting must be sourced to the exact specification of your original glass—aftermarket equivalents are available but must match the tint density and reflective properties. The tinting is integral to the glass itself and cannot be applied afterwards. No calibration is required. The windscreen is bonded in place and cure time applies as standard.

• Heated Windscreen3

  2010–2026

  Heated windscreens use embedded wires to quickly clear ice and condensation in cold weather.

  What it means

  A heated windscreen is integrated with a fine mesh of electrical wires embedded within the glass itself. When activated, these wires generate heat to warm the windscreen surface, helping to rapidly clear frost, ice, and condensation during cold or damp conditions. This feature improves visibility and safety in winter driving and reduces reliance on engine heat and demister air, which can be slower on very cold mornings.

  How to tell

  Check your vehicle's handbook or contact your dealership service centre — they can confirm whether your model includes this feature. Look for a dashboard symbol (usually a windscreen icon with heat waves) when you activate the function, or check your infotainment settings for a heating or climate option linked to the windscreen. Some vehicles have a dedicated button on the stalk or console.

  Replacement impact

  Heated windscreens require replacement glass to be of the correct heated specification — standard unheated glass cannot be fitted. The replacement glass must be sourced to match your vehicle's exact heated-wire configuration. Installation is straightforward, though the technician will confirm the heating element is functioning correctly after fitting. No calibration is required for this feature.

• HUD - Head Up Display2

  2018–2026No calibration after replacement

  A Head-Up Display projects your speed, navigation cues and key alerts onto the windscreen so you can read them without looking down.

  What it means

  A Head-Up Display (HUD) projects driving information — speed, navigation cues, ADAS alerts — onto the windscreen in your line of sight, so you can read it without taking your eyes off the road. The projector is mounted in the dashboard and shines the image upwards onto a special HUD-compatible windscreen that uses a wedge-shaped laminate to prevent a ghost image. Common on premium and sports models, increasingly standard on mid-range cars from the 2020s onwards.

  How to tell

  Check your vehicle's specification sheet or handbook under 'display features' or 'HUD'. Look for a small projector unit mounted on the dashboard, typically below the steering wheel or in the instrument cluster area. When you start the vehicle, a bright image should appear on the lower windscreen area. Your dealer's service centre can confirm whether your specific model and trim level includes a HUD.

  Replacement impact

  Your replacement windscreen needs to be HUD-compatible — built with the correct wedge laminate so the projected image stays sharp and double-free. Once the HUD-compatible glass is fitted, the projector itself typically doesn't need recalibration: image position is user-adjustable via your dashboard controls. We confirm your vehicle uses the HUD-compatible windscreen variant when ordering, so the replacement matches the original.

• Dark Grey Sun Strip1

  2012–2017

  A dark-grey tinted band runs across the top of your windscreen to reduce glare from the sun.

  What it means

  A dark-grey sun strip is a gradient-tinted band integrated into the windscreen's laminate layer at the top edge. It reduces glare and heat from direct sunlight without compromising visibility. Sun strips are a windscreen-only feature because they are built into the polyvinyl butyral (PVB) interlayer during manufacture — toughened side and rear glass cannot incorporate them. The dark-grey variant is a factory specification on certain vehicles, chosen for its aesthetic match to the original finish and optical properties.

  How to tell

  Look at the top edge of your windscreen from outside the vehicle. You will see a dark-grey gradient band running horizontally across the width. If your original windscreen has this dark tint (rather than the standard lighter grey), your replacement must match it. Check your vehicle's handbook or contact your dealer's service department to confirm the sun strip colour specification for your model.

  Replacement impact

  Replacement windscreens with a dark-grey sun strip must be sourced to the exact factory specification. The tint is integral to the laminate and cannot be added or modified after manufacture. Your fitter will confirm the correct variant is in stock before fitting. The dark-grey specification may have a longer lead time than standard grey; we will advise at quote if any delay is expected. Installation and cure procedures are identical to standard windscreens.

• Light Sensor1

  2018–2026

  Light sensors automatically turn your headlights on at dusk or in tunnels; the replacement windscreen must include the sensor bracket.

  What it means

  A light sensor is a small optical detector mounted on the windscreen or dashboard that monitors ambient light levels. When light drops below a threshold—at dusk or when entering a tunnel—it triggers your headlights to switch on automatically. This removes the need to manually operate the lights and improves safety by ensuring visibility when conditions darken suddenly. The sensor is typically mounted behind the windscreen's top edge or integrated into the interior mirror housing, where it has an unobstructed view of the sky.

  How to tell

  Check your vehicle's handbook or ask your dealer whether your car has automatic headlight control or 'auto lights' as a feature. If equipped, you'll see a symbol on the stalk or dashboard dial marked with a light-bulb icon or 'AUTO' setting. When you select this mode and the ambient light dims, the headlights activate without manual input. Not all cars have this feature; it's typically found on newer or higher-specification models.

  Replacement impact

  When replacing a windscreen on a vehicle with a light sensor, the replacement glass must include the correct sensor bracket or mounting point to preserve the auto-headlight function. The sensor itself does not require software calibration—it relies on physical positioning behind the windscreen's upper trim or within the mirror assembly. Ensuring the bracket is correctly installed during the fit is essential; if omitted, the auto-light feature will fail and cannot be restored without additional parts and labour.

• Vehicle Emergency Messaging1

  2014–2026

  Emergency messaging systems alert the emergency services immediately after a serious crash, reducing response time.

  What it means

  An emergency messaging system (sometimes called a 'Mayday' system) is an in-vehicle safety feature that automatically detects a serious collision and transmits emergency location data to the relevant emergency services. When a major impact is detected, the system sends the vehicle's precise GPS coordinates and other crash details to emergency responders, reducing the critical time between the accident and the arrival of medical assistance. This technology is designed to save lives by ensuring rapid response, particularly in situations where the occupants may be unconscious or unable to make a call themselves.

  How to tell

  Check your vehicle's user manual or infotainment system for emergency call or 'eCall' settings. Many vehicles display an emergency services icon in the dashboard menu or settings. You can also ask your dealership or service centre directly whether your model includes this feature — they'll confirm it's present and explain how to register or activate it if needed.

  Replacement impact

  Emergency messaging systems typically involve a control module or sensors in the vehicle structure, but do not require calibration or special handling during windscreen replacement. The system remains fully functional after glass replacement. No cure-time implications or OE-only glass sourcing is triggered by this feature. Standard replacement procedures apply.