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 553 (PERSONALIZATION SYSTEMS)DESCRIPTION AND OPERATIONDRIVER PERSONALIZATIONMODES OF OPERATIONDELAYED LOCKING
1999 GMC Forward Control 5.7 R, Automatic
Delayed Locking
1999 GMC Forward Control 5.7 R, AutomaticSECTION Delayed Locking
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
The following are the modes of operation for the delayed locking feature:
- Mode 1:
The delayed locking feature is disabled.
- Mode 2: (Default)
All of the doors lock five seconds after the last door is closed when the lock switch is activated.
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.