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 200 (TIRE PRESSURE MONITORING SYSTEM)DTC TROUBLESHOOTINGDTC 81: TPMS CONTROL UNIT FAILURE
2008 Chevrolet HHR LT, 2.4 P, Automatic
DTC 81: TPMS Control Unit Failure
2008 Chevrolet HHR LT, 2.4 P, AutomaticSECTION DTC 81: TPMS Control Unit Failure
WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Low 12 volt battery voltage can cause this DTC. Make sure the 12 volt battery is fully charged and in good condition (see
12 VOLT BATTERY TEST
).
- Turn the ignition switch to ON (II).
- Clear the DTC with the HDS.
- Turn the ignition switch to LOCK (0), then turn the ignition switch to ON (II) again.
- Check for DTCs with the HDS.
Is DTC 81 indicated?
YES -Replace the TPMS control unit (see TPMS CONTROL UNIT REPLACEMENT ).
NO -The system is OK at this time. Check for loose terminals and poor connections at the TPMS control unit.
RENDER: 1.0x
NO RELATED
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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.