Low Brake Fluid Indicated
The brake fluid level switch in the master cylinder reservoir reports a low level. ABS and stability control may be deactivated as a precaution.
Affected components
- Brake fluid level switch
- Master cylinder reservoir
Common causes
- High likelihood: Worn brake pads (fluid drops as pistons extend)
- Medium likelihood: Hydraulic system leak
- Low likelihood: Level switch failed
Possible symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.