ABS warning light
The letters ABS in a circle, amber
Get it looked at soon · Amber means get it checked
ABS Warning Light
You can keep driving, but get it looked at soon rather than later. Your normal brakes still work fine for everyday stopping. What has switched off is the anti-lock system, which is the part that kicks in during a hard, sudden stop to keep the wheels from locking up so you can still steer around whatever you're trying to avoid. Until that gets fixed, a panic stop on wet or gravel roads is more likely to end in a skid.
The light means the car's computer has found a fault somewhere in the ABS system and has switched it off rather than let it work on bad information. It is not guessing. Something specific tripped it, and a scan tool will tell us what.
The common causes, roughly in order of how often we see them:
- A wheel speed sensor that has failed, is dirty, or has a damaged wiring connector. This is the most frequent cause by far.
- Corrosion or a broken wire in the harness that runs out to the wheel, often from road salt or age.
- A fault in the ABS control module itself, less common and usually the more expensive fix.
- Low brake fluid level, which some cars will flag through the ABS light as well as a separate brake light.
- A blown fuse or bad relay related to the ABS pump.
To be clear about what this light does not mean: it is not the parking brake light, and it is not telling you the brake pads are worn out. Those show up as separate warnings. If you see the ABS light on by itself, your brakes are working, just without the anti-lock backup.
Putting it right starts with plugging in a scan tool to pull the fault code, which points to the specific sensor or circuit involved. Most of the time it turns out to be a single wheel speed sensor, which is a straightforward swap. Wiring repairs take longer if the damage is hard to reach. A control module problem is less common and takes more diagnostic time to confirm before we'd recommend replacing it, since that part isn't cheap and we would not want to guess.
Bring it in and we'll scan it and tell you exactly what tripped the light before doing anything. We're open Saturdays too, if that's easier to work around your week.