Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2008HHR LT, 2.4 P, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 121 (ANTILOCK BRAKE SYSTEM)
2008 Chevrolet HHR LT, 2.4 P, Automatic
Section 121 (Antilock Brake System)
2008 Chevrolet HHR LT, 2.4 P, AutomaticSECTION Section 121 (Antilock Brake System)
WARNING: This page is about a different car, the 2009 Chevrolet HHR. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic and Routing Diagrams
- Diagnostic Information and Procedures
- Diagnostic Code Index
- Diagnostic Starting Point - Antilock Brake System
- DTC C0035-C0050
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC C0110
- DTC C0131
- DTC C0161
- DTC C0186
- DTC C0196
- DTC C0201
- DTC C0252
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC C0280
- DTC C0292
- DTC C0299
- DTC C0460
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC C0551
- DTC C0561
- DTC C0569
- DTC C1100
- DTC P0856
- Symptoms - Antilock Brake System
- ABS Indicator Malfunction
- StabiliTrak Indicator Malfunction
- Repair Instructions
- Antilock Brake System Automated Bleed Procedure
- Steering Angle Sensor Centering
- Electronic Brake Control Module Replacement (With JL4)
- Electronic Brake Control Module Replacement (Without JL4)
- Brake Pressure Modulator Valve Replacement (Without JL4)
- Brake Pressure Modulator Valve Replacement (With JL4, LNF)
- Brake Pressure Modulator Valve Replacement (With JL4)
- Brake Pressure Modulator Valve Bracket Replacement (With JL4)
- Brake Pressure Modulator Valve Bracket Replacement (Without JL4)
- Electronic Traction Control Switch Replacement
- Vehicle Yaw Sensor with Vehicle Lateral Accelerometer Replacement
- Description and Operation
- ABS Description and Operation
- Notes
- Initialization Sequence
- Antilock Brake System
- Pressure Hold
- Pressure Decrease
- Pressure Increase
- Engine Drag Control (EDC)
- Electronic Brake Distribution (EBD)
- Hydraulic Brake Boost System
- Traction Control System (TCS)
- Traction Control Switch
- ABS Indicator
- Traction Control System Indicator
- Vehicle Stability Enhancement System (VSES)
- ABS Description and Operation
- Special Tools and Equipment
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.