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 MANUALSCHEVROLET2006SUBURBAN K2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1023 (KEYLESS ENTRY SYSTEM AND REMOTE FUNCTIONS)DESCRIPTION AND OPERATIONKEYLESS ENTRY SYSTEM DESCRIPTION AND OPERATIONLOCK ALL DOORS - ACTIVE
2006 Chevrolet Suburban K2500, 6.0 U
Lock All Doors - Active
2006 Chevrolet Suburban K2500, 6.0 USECTION Lock All Doors - Active
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Press the transmitter LOCK button to perform the following functions:
- Lock all vehicle doors. Immediately turn off the interior lamps.
- Lock the liftgate.
- Flash the exterior lights, if enabled through the driver information center (DIC).
- Chirp the horn if the LOCK button is pressed again within 5 seconds, if enabled through the DIC.
- Arm the Content Theft Deterrent (CTD) System, if equipped.
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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.