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 MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 826 (PERSONALIZATION SYSTEM)DESCRIPTION AND OPERATIONVEHICLE PERSONALIZATIONPROGRAMMING FEATURESAUTOMATIC DOOR LOCKS
1999 GMC Forward Control 5.7 R, Automatic
Automatic Door Locks
1999 GMC Forward Control 5.7 R, AutomaticSECTION Automatic Door Locks
WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
Continue with the following steps in order to personalize the automatic door locks:
- Press and release the any power door lock switch. Count the number of chimes in order to determine the current mode.
- Press any power door lock switch again in order to advance to the next mode. The chime will sound the number of times equivalent to the mode.
- Continue to press any power door lock switch until you reach the desired mode.
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.