Bleeding the Brake System (ABS)

Auto Bleed Procedure

NOTE: Perform a manual bleeding procedure. If the brake pedal height and firmness results are not achieved, perform the auto bleed procedure below.

1. Raise and support the vehicle.
2. Remove the tire and wheel assemblies.
3. Inspect the battery state of charge.
4. Install a scan tool.
5. Turn ON the ignition, with the engine OFF.
6. With the scan tool, establish communications with the ABS/TCS system. Select Special Functions from the ABS/TCS menu. Select Automated Bleed from the Special Functions menu.
7. Bleed the base brake system.
8. Follow the scan tool directions until the desired brake pedal height is achieved.
9. If the bleed procedure is aborted, a malfunction exists. Perform the following steps before resuming the bleed procedure:
10. If a DTC is detected, refer to Diagnostic Trouble Code (DTC) List and diagnose the appropriate DTC.
11. If the brake pedal feels spongy, perform the conventional brake bleed procedure again.
12. When the desired pedal height is achieved, press the brake pedal in order to inspect for firmness.
13. Remove the scan tool.
14. Install the tire and wheel assemblies.
15. Inspect the brake fluid level.
16. Road test the vehicle while inspecting that the pedal remains high and firm.