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 MANUALSCHEVROLET2013TRAVERSE AWD V6-3.6LREPAIR AND DIAGNOSISWINDOWS AND GLASSHEATED GLASS ELEMENTDESCRIPTION AND OPERATION
2013 Chevrolet Traverse AWD V6-3.6L
Heated Glass Element: Description and Operation
2013 Chevrolet Traverse AWD V6-3.6LSECTION Description and Operation
Rear Window Defogger Description and Operation
Rear Window Defogger System Components
The rear window defogger system consists of the following components:
* Heating ventilation air conditioning control module (HVAC)
* RR DEFOG relay
* Rear window that has the defogger grid
Rear Window Defogger Operation
When you depress the rear defogger switch, voltage is supplied to the RR DEFOG relay coil and the HVAC control module also illuminates the rear window defogger indicator. Battery positive voltage is supplied at all times to the RR DEFOG relay switched input and the RR DEFOG relay coil is always grounded. This allows battery positive voltage from the relay switched input through the switch contacts and out the relay switched output to the rear window defogger. The HVAC module also sends a message to the driver door module (DDM) and passenger door module (PDM) on the GMLAN serial communication circuit to activate the heated mirrors, if equipped
When you turn ON the ignition and press the rear window defogger switch for the first time, the defogger cycle lasts 10 minutes. Further operation results in 5-minute defogger cycles.
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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.