The Importance of Regular ADAS Calibration
What ADAS calibration is, when your car needs it, and how tyres and alignment fit in.
Home / Blog / The Importance of Regular ADAS Calibration
Modern cars are packed with safety technology. Cameras, radar and sensors help you brake in an emergency, stay in your lane, keep a safe distance and avoid hazards you might miss. These are known as ADAS, or Advanced Driver Assistance Systems.
But these systems only work properly if their sensors are positioned and aligned correctly. That is where ADAS calibration comes in. This guide explains what it is, why it matters, when your car may need it, and how your tyres and wheel alignment fit into the picture.
What Is ADAS?
ADAS covers a range of features designed to help the driver and reduce the risk of accidents. Depending on your vehicle, these might include:
- Autonomous emergency braking (AEB)
- Lane departure warning and lane keep assist
- Adaptive cruise control
- Blind spot monitoring
- Traffic sign recognition
- Parking sensors and cameras
- Rear cross-traffic alert
- Driver monitoring systems
These systems rely on forward-facing cameras, radar units, ultrasonic sensors and other hardware fitted around the car, often behind the windscreen, in the bumpers and in the mirrors.
What Is ADAS Calibration?
ADAS calibration is the process of checking and adjusting these sensors and cameras so they see the road exactly as the manufacturer intended. Even a very small change in angle can affect what a sensor "sees" and how accurately the system reacts, particularly at distance.
Calibration is usually carried out by a specialist using manufacturer-approved equipment and procedures. It generally falls into two types:
- Static calibration, carried out in a workshop using targets and measuring equipment while the car is stationary.
- Dynamic calibration, carried out on the road under specific conditions, with diagnostic equipment connected to the car.
Some vehicles need one type, some need both. The correct procedure depends on the manufacturer and model.
Why Calibration Matters
Safety
If a camera or radar is even slightly misaligned, the system may react late, react wrongly or not react at all. It might fail to detect a vehicle ahead, misjudge a lane position or trigger unnecessary warnings.
Reliability
A system that gives false alerts or works unpredictably can distract drivers, and may lead them to switch features off.
Accuracy
ADAS features are designed to work within tight tolerances. Regular checks keep them performing as designed.
Insurance and Liability
If a vehicle has been repaired and its safety systems are not working as intended, this could raise questions after an accident. Following the manufacturer's repair guidance is important, and it is worth checking with your insurer if you are unsure.
When Does a Car Need ADAS Calibration?
Calibration is typically needed after something has changed the position or alignment of a sensor or camera. Common triggers include:
- Windscreen replacement, especially where a camera is mounted behind the glass
- Collision or accident repairs, including minor bumps
- Bumper, grille or mirror replacement or repair
- Sensor, camera or radar replacement
- Wheel alignment adjustments
- Suspension repairs or changes, which can alter the car's ride height and angles
- Changes to ride height, such as lifting or lowering a vehicle
- Software updates or module replacement, where the manufacturer requires it
- ADAS warning lights or fault messages on the dashboard
- Noticeable changes in how a system behaves
Always follow the manufacturer's guidance for your vehicle. Requirements vary widely by make and model, so the handbook and a qualified specialist are the best sources.
Signs Your ADAS May Need Attention
Watch for:
- A warning light or message related to driver assistance, cameras or sensors
- Lane assist or cruise control acting oddly
- Unexpected or missing alerts
- Automatic braking triggering when it should not, or not responding when it should
- Systems that switch off or become unavailable
- A recent repair or accident that may have disturbed sensors
If you notice any of these, have the vehicle checked by a qualified technician. Do not rely on a system you suspect may not be working properly.
How Tyres and Wheel Alignment Affect ADAS
ADAS is not only about cameras and radar. Your car's wheels and tyres also play a part in how these systems perform.
Wheel Alignment
Many ADAS systems assume the car is tracking straight and level. If wheel alignment is out, for example after hitting a pothole or kerb, or after suspension work, the car's "straight ahead" direction may differ from where the sensors are pointing. Manufacturers often require alignment to be correct before calibration, and some alignment work can trigger the need for recalibration.
Tyre Size and Specification
Fitting tyres that do not match the manufacturer's specification can affect things like rolling circumference, speed sensing and load handling, which in turn can affect how systems calculate distance and speed. Always fit tyres of the correct size, load and speed rating for your vehicle.
Tyre Condition and Pressure
Worn, damaged or incorrectly inflated tyres can affect grip, braking and handling. Systems such as automatic emergency braking work best when the tyres underneath them are in good condition. Read our guide on the dangers of worn tyres for more on checking tread and condition.
Uneven Tyre Wear
Uneven wear can be a sign of alignment or suspension problems. These issues are worth having checked, especially on cars with driver assistance systems.
Does Fitting New Tyres Require ADAS Calibration?
In most cases, simply replacing a tyre with the correct size and specification does not by itself require ADAS calibration. Calibration is more often needed after work that affects sensor position or alignment, such as windscreen replacement, collision repair, alignment adjustment or suspension work. However, requirements differ between manufacturers, so check your handbook or ask a qualified specialist if you are unsure.
If your car has had alignment or suspension work done along with a tyre change, ask the workshop whether calibration is needed.
Tips for Keeping Your Driver Assistance Systems Reliable
- Follow the manufacturer's guidance in your handbook.
- Use a qualified specialist for calibration, with the correct equipment and procedures.
- Ask about calibration after windscreen replacement, collision repair or alignment work.
- Do not ignore warning lights or fault messages.
- Keep sensors and cameras clean. Dirt, snow or ice can block them, and a gentle clean of the windscreen and sensor areas can help.
- Do not put stickers or objects in front of cameras or sensors.
- Fit the correct tyres, and keep them correctly inflated and in good condition.
- Keep records of repairs and calibration for your own reference.
Where Rapid Mobile Tyres Fits In
We want to be clear about what we do. Rapid Mobile Tyres provides mobile tyre fitting, not ADAS calibration. We can help with the tyre side of keeping your car safe and performing as it should, including:
- Mobile tyre fitting at your home, workplace or a suitable location
- Fitting the right tyres for your car or SUV, in the correct size and specification
- A wide range of premium and budget brands, including Michelin, Continental, Pirelli, Bridgestone, Goodyear, Dunlop, Nexen, Falken, Avon, Kumho and Nankang
- 24/7 emergency help when a tyre fails, with a usual arrival of around 45–60 minutes depending on traffic, availability and your location
For ADAS calibration itself, speak to a qualified calibration specialist or your vehicle manufacturer's approved repairer. If you are not sure whether your car needs calibration after a repair, they can advise you.
Frequently Asked Questions
What does ADAS stand for?
ADAS stands for Advanced Driver Assistance Systems. These are safety and driver-help features such as automatic emergency braking, lane keep assist and adaptive cruise control.
Why does ADAS need calibrating?
The cameras and sensors must point in precisely the right direction to read the road accurately. Repairs, impacts and alignment changes can shift them slightly, which can affect how well the systems work.
When is ADAS calibration needed?
Commonly after a windscreen replacement, collision repair, bumper or sensor work, wheel alignment or suspension changes, or when a warning light appears. Check your handbook or ask a specialist.
Does changing a tyre affect ADAS calibration?
Usually, a like-for-like tyre change does not require calibration, but fitting the wrong size or specification can affect vehicle systems. If alignment or suspension work is also being done, ask whether calibration is needed.
Can I calibrate ADAS myself?
Calibration normally requires specialist equipment, a controlled setup and manufacturer procedures, so it is usually done by a qualified technician.
Do you offer ADAS calibration?
No. Rapid Mobile Tyres provides mobile tyre fitting. For calibration, we recommend contacting a qualified specialist or your manufacturer's approved repairer.
Can you help with tyres if my car has driver assistance systems?
Yes. We can fit tyres of the correct size and specification for your vehicle. Tell us your registration or tyre size when you call.
Final Thoughts
Driver assistance systems can make driving safer, but only if they are accurate. Regular checks, calibration when needed and good tyre and alignment care all help them do their job. If your car has had repairs that might affect its sensors, or you see a warning light, get it checked by a qualified specialist.
For everything on the tyre side, Rapid Mobile Tyres is here 24/7 across Bristol and surrounding areas. Check our areas we cover.
Need the Right Tyres Fitted?
Call now or request a callback for mobile tyre fitting — 24/7 across Bristol and the surrounding areas.