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.
Circuit/System Description
The seat heater mat which is a part of the heated seat system is calibrated as a part of the inflatable restraint Passenger Presence System (PPS). If the vehicle is equipped with a front passenger seat heater, the PPS continuously monitors for faults from the heated seat element. If the PPS determines there is a fault in the heated seat element supply circuit, the PPS will set DTC 052, turn the passenger air bag status indicator to OFF, and notify the sensing and diagnostic module (SDM) of a fault in the PPS through a non GMLAN communications circuit. The SDM will then turn the air bag indicator to ON, and set DTC B0081 indicating a problem within the PPS and will suppress the deployment of the instrument panel (I/P) module. The heater seat mat along with the PPS is a calibrated system and must be replaced as a complete unit
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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.