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 MANUALSGMC2011YUKON BASE, 5.3 0, RWDREPAIR AND DIAGNOSISBODY & FRAMEDOOR LOCKSPOWER DOOR LOCK SYSTEM AND RELEASE SYSTEMSDIAGNOSTIC INFORMATION AND PROCEDURESPOWER LIFTGATE MALFUNCTION (LIFTGATE HANDLE SWITCH MALFUNCTION)CIRCUIT/SYSTEM VERIFICATION
2011 GMC Yukon Base, 5.3 0, RWD
Circuit/System Verification
2011 GMC Yukon Base, 5.3 0, RWDSECTION Circuit/System Verification
- DTC B2494 should not be set as a history DTC.
- If DTC B2494 is set only as history, replace the liftgate handle switch.
- Observe the scan tool Liftgate Handle Sw. Status parameter while pressing and releasing the liftgate handle switch and pressing and releasing the liftgate close switch. The reading should change between Active and Inactive as each switch is pressed and released.
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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.