C0576 code meaning
Brake Pressure Sensor D Circuit High
Chassis system Generic code C05xx codes Check engine light
What C0576 means
C0576 is set when the signal of brake pressure sensor D sits too high. GM's 2016–2019 hybrid brake tables, where D is the left rear wheel pressure sensor, compare the signal line against the supply: a level over 3.3 V lasting 0.1 s at ignition on stores the code, Type A with MIL after one trip. A short to the 5 V reference or to battery voltage and a broken sensor ground are the usual reasons; an internally damaged sensor can also report full scale. A Bosch trainer describes such a sensor as 5 V supplied, giving under 1 V with the brakes released and rising with pressure, which makes a high reading at rest easy to spot on live data. The module then no longer trusts the value, and regenerative blending and ABS/ESC are restricted.
C0576 at a glance
- Check engine lightYes, usually on
- Emissions testNot an emissions code
- Limp modePossible
- Repair difficultyHard
- Typical labor0.5 to 4 hours
- Clears after repairWhen cleared with a scanner
Symptoms of C0576
- Check engine light and brake warnings (GM hybrids)
- High rear pressure shown with the pedal released
- Less regenerative braking, ABS/ESC restricted
Common causes of C0576
- Most likelySignal line shorted to the 5 V reference or to battery voltage
- PossibleOpen sensor ground, signal floats high
- PossibleSensor internally damaged, reports maximum pressure
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Brake pressure sensor dSensor wiringBrake control module
What each part of C0576 means
| C | Chassis system: brakes, ABS, steering and suspension. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 76 | The exact fault in that area. |
What to do next
- Note C0576 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about C0576
What does C0576 mean?
C0576 means "Brake Pressure Sensor D Circuit High". C0576 is set when the signal of brake pressure sensor D sits too high. It is a generic code, so it means the same on every make.
Is it safe to drive with C0576?
Drive gently and only to a workshop. With C0576 the car can go into limp mode (reduced power) to protect itself.
Will C0576 fail an emissions test?
C0576 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is C0576 to fix?
Difficulty: hard. A typical repair takes 0.5 to 4 hours of work. This is a job for a workshop.
Will C0576 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.