Key statistics. Approximately 21.7% of all MOT tests in the UK result in a failure. (DVSA (BookMyGarage), 2024). Around 7% of MOT failures in 2024-2025 were due to brake issues (condition, performance, fluid). (Green Flag / DVLA, 2024-2025).
When your ABS light illuminates on your dashboard, it signals a fault within your vehicle's Anti-lock Braking System. This means your anti-lock brakes may not function correctly in an emergency, potentially compromising your stopping ability and making your car an automatic MOT failure. Immediate investigation is crucial for your safety.
What Exactly is the ABS System and Why is it Important?
The Anti-lock Braking System (ABS) is a vital safety feature designed to prevent your wheels from locking up during hard braking. It does this by rapidly pulsing the brakes, allowing you to maintain steering control and reduce stopping distances, especially on slippery surfaces. Without ABS, a sudden, forceful brake application could cause your wheels to lock, leading to a skid and loss of control, particularly dangerous when driving on the left in the UK's often wet conditions.
What Does the ABS Light Mean When It Comes On?
An illuminated ABS warning light indicates that there's a problem within the ABS system itself. This doesn't necessarily mean your regular brakes have failed, but rather that the anti-lock function is compromised. While your car will still brake, it won't have the benefit of the ABS preventing wheel lock-up, increasing the risk of skidding in an emergency stop.
It's similar to how other warning lights operate. For example, a Check Engine Light or an Airbag Light alerts you to specific system malfunctions. The ABS light is your car's way of telling you that one of its critical safety features isn't performing as it should.
Is It Safe to Drive with the ABS Light On?
No, it's generally not safe to drive with the ABS light on, and it's certainly not advisable for long distances. While your conventional brakes should still work, the absence of the anti-lock function significantly increases your risk of losing control during sudden braking. Imagine having to perform an emergency stop at 70 mph on a wet motorway; without ABS, your stopping distance could increase, and you could easily skid.
Key point. Driving with an illuminated ABS light means your vehicle’s crucial anti-lock braking capabilities are disabled, making emergency braking significantly riskier. Always prioritise safety and address the issue promptly.
What Are the Common Reasons the ABS Light Comes On?
Several issues can trigger your ABS light
Frequently Asked Questions
Can I still drive my car if the ABS light is on?
While your regular brakes will still work, the anti-lock function is disabled, increasing the risk of skidding during emergency stops. It is generally advised to drive cautiously and get it checked by a mechanic as soon as possible.
Will an illuminated ABS light cause my car to fail its MOT?
Yes, an illuminated ABS warning light is an automatic major defect and will result in an MOT failure.
How much does it cost to fix an ABS light?
The cost to fix an ABS light can vary significantly, from approximately £50-£150 for a faulty wheel sensor or a simple fluid top-up, to £600-£2,500 or more for an ABS control module or pump replacement.
