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 MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 868 (PERSONALIZATION SYSTEMS)DESCRIPTION AND OPERATIONVEHICLE PERSONALIZATIONPROGRAMMING FEATURES ON VEHICLES WITHOUT KEYLESS ENTRY (AUO)HEADLAMP EXIT DELAY
2003 Chevrolet TrailBlazer 4.2 S, 4WD
Headlamp Exit Delay
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Headlamp Exit Delay
WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. 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 headlamp exit delay feature:
- Turn the park lamps ON. The vehicle will chime with the number of chimes corresponding to the current mode, see Headlamp Exit Delay modes above.
- Turn the park lamps OFF then back ON in order to advance to the next mode. The vehicle will chime with the number of chimes corresponding to the mode.
- Continue to cycle the park lamp switch until the desired mode is reached.
RENDER: 1.0x
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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.