| The parking brake will not engage or release (with no parking brake warning message) |
- Electric park brake left/right actuator incorrectly installed
- Rear left/right brake pads excessively worn
- Service brake incorrectly adjusted following brake pads change
- Rear left/right brake pad(s) seized (in caliper)
- Rear left/right brake caliper slide(s) seized
- Rear left/right brake caliper piston(s) seized
- Parking brake system fault
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- Check the installation of the electric park brake actuators
- Check the rear brake pads for excessive wear
- Refer to the relevant section of the service information and perform routine - Service Mode Deactivation
- Check the rear brake pads for seizure
- Check the rear brake caliper slides for seizure
- Check the rear brake caliper pistons for seizure
- Using the manufacturer approved diagnostic system, check the anti-lock brake system control module for related DTCs and refer to the relevant DTC index
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| The parking brake will not engage or release (with parking brake warning message) |
- Electric park brake left/right actuator incorrectly installed
- Rear left/right brake pads excessively worn
- Rear left/right brake pad(s) seized (in caliper)
- Rear left/right brake caliper slide(s) seized
- Rear left/right brake caliper piston(s) seized
- Parking brake system fault
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- Check the installation of the electric park brake actuators
- Check the rear brake pads for excessive wear
- Check the rear brake pads for seizure
- Check the rear brake caliper slides for seizure
- Check the rear brake caliper pistons for seizure
- Using the manufacturer approved diagnostic system, check the anti-lock brake system control module for related DTCs and refer to the relevant DTC index
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| No communication with the antilock brake system control module |
- Anti-lock brake system control module power or ground circuit open circuit, high resistance
- High speed CAN bus (chassis or powertrain) circuit short circuit to ground, short circuit to power, open circuit, high resistance
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- Refer to the appropriate system wiring diagram and check the anti-lock brake system control module power and ground circuits for open circuit, high resistance
- Using the manufacturer approved diagnostic system, perform a CAN network integrity test. Refer to the appropriate system wiring diagram and check the high speed CAN bus (chassis and powertrain) circuit for short circuit to ground, short circuit to power, open circuit, high resistance
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| PARK BRAKE FAULT warning massage displayed in the message center |
- Electric park brake system fault
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- Using the manufacturer approved diagnostic system, check the anti-lock brake system control module for related DTCs and refer to the relevant DTC index
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| Brakes drag |
- Electric park brake left/right actuator incorrectly installed
- Rear left/right brake pads excessively worn
- Rear left/right brake pad(s) seized (in caliper)
- Rear left/right brake caliper slide(s) seized
- Rear left/right brake caliper piston(s) seized
- Electric park brake actuator internal fault
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- Check the installation of the electric park brake actuators
- Check the rear brake pads for excessive wear
- Check the rear brake pads for seizure
- Check the rear brake caliper slides for seizure
- Check the rear brake caliper pistons for seizure
- Check for related electric park brake control brake actuator DTCs and refer to the relevant DTC index
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