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 MANUALSCHEVROLET2025TRAVERSE HIGH COUNTRY, FWDREPAIR AND DIAGNOSISBODY & FRAMEFIXED AND MOVEABLE WINDOWSDIAGNOSTIC INFORMATION AND PROCEDURESDTC B1066CIRCUIT/SYSTEM VERIFICATION
2025 Chevrolet Traverse High Country, FWD
Circuit/System Verification
2025 Chevrolet Traverse High Country, FWDSECTION Circuit/System Verification
- Engine Running.
- Verify The E18 Rear Window Defogger Grid Turns On And Off When Pressing The Appropriate Switch On The A26 Heater And Air Conditioning User Interface Control - Front.
- If The E18 Rear Window Defogger Grid Does Not Turn On Or Off
Refer To Circuit/System Testing
- Go To Next Step: If The E18 Rear Window Defogger Grid Turns On And Off
- If The E18 Rear Window Defogger Grid Does Not Turn On Or Off
- A Fault That Is Not Currently Present May Have Been Caused By A Intermittent Condition.
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.