Car Problem Finder
Brake warning light: Causes, First Checks and OBD2 Codes
Brake, steering, vibration, and suspension symptoms are safety-related and should be checked before they become control problems.
Most likely causes
- Worn pads, discs, or shoes
- ABS sensor or wheel bearing signal issue
- Unbalanced or damaged tire
- Loose suspension or steering joint
- Hydraulic leak or air in brake system
First checks
- 1.Avoid driving if braking distance changed
- 2.Inspect tires, wheels, and visible brake parts
- 3.Scan ABS module when warning light is on
- 4.Check brake fluid level and leaks
- 5.Lift the car to inspect joints and wheel bearings
Can I drive?
Stop safely as soon as possible and do not continue driving until inspected.
Do not replace yet
Do not replace expensive parts before these basic checks confirm the fault path.