Urgency:Stop driving
Is it safe to keep driving?
No, unless the light goes out when you fully release the parking brake. If it stays on, do not drive — low fluid or a hydraulic fault can mean partial or total brake loss.
Likely causes
- Parking brake not fully released
- Brake fluid low from worn pads or a leak
- Hydraulic pressure loss in one circuit
- Failed brake fluid level sensor
Typical repair cost (US)
$10 – $1,200
Brake fluid at the low end; a master cylinder or caliper and lines at the high end.
A typical range, not a quote. Actual cost depends on the car, the shop and the fault.
What to do now
- Check the parking brake is fully released.
- If the light stays on, check the brake fluid reservoir. Low fluid means worn pads or a leak — have it inspected before driving.
- If the pedal feels soft or goes to the floor, do not drive. Get the car towed.