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 479 (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B0053CIRCUIT/SYSTEM TESTING
2008 Chevrolet HHR LT, 2.4 P, Automatic
Circuit/System Testing
2008 Chevrolet HHR LT, 2.4 P, AutomaticSECTION Circuit/System Testing
WARNING: This page is about a different car, the 2011 GMC Canyon and 2011 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
The seat belt pretensioners may deploy for impacts that are not severe enough to warrent frontal or side air bag deployment. The SDM is capable of sustaining 3 pretensioners deployment events or one frontal or side deployment event. After the maximum number of deployments has occurred, DTC B0053 sets and becomes a latched code, which cannot be cleared.
When DTC B0053 is accompanied by additional DTCs, other than B0051, repair the malfunction causing the other DTCs before replacing the SDM.
When DTC B0053 is accompanied by additional DTCs, other than B0051, repair the malfunction causing the other DTCs before replacing the SDM.
- Ignition OFF, verify no signs of air bag or pretensioner deployment exists.
- If any signs of deployment exists, refer to Repairs and Inspections Required After a Collision .
- Verify the DTC B0053 is not set.
- If the DTC is set, clear the DTC. If the DTC resets, replace the SDM.
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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.