C0049
Brake Fluid Level
Brake fluid level low — typically detected by reservoir float switch.
Brake fluid level low — typically detected by reservoir float switch.
Common causes
- high
Low brake fluid (leak or pad wear)
One of the most commonly reported causes for this code — check this first.
Typical part cost: $10-220
See all causes + fix costs
Create a free Wrenchify account to unlock the rest for C0049.
Unlock causesFree forever · No credit card
First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
Get the full step-by-step diagnosis
Create a free Wrenchify account to unlock the rest for C0049.
Unlock diagnosisFree forever · No credit card
Related codes
See related trouble codes
Create a free Wrenchify account to unlock the rest for C0049.
Unlock related codesFree forever · No credit card
Frequently asked questions
What does C0049 mean?
C0049 means "Brake Fluid Level". It is a generic OBD-II code that points to a fault in the chassis.
What are the most common causes of C0049?
low brake fluid (leak or pad wear) — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.
Get the full C0049 diagnosis for your vehicle
Year, make, model + step-by-step repair help — free plan included.