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 MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2291 (KEYLESS ENTRY SYSTEM AND REMOTE FUNCTIONS)DIAGNOSTIC INFORMATION AND PROCEDURESREMOTE VEHICLE START INOPERATIVECIRCUIT/SYSTEM VERIFICATION
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6
Circuit/System Verification
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Circuit/System Verification
WARNING: This page is about a different car, the 2010 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
- Verify that RVS is enabled through vehicle personalization.
- If RVS is not enabled, use vehicle personalization to turn on RVS functionality. Refer to the vehicle owners manual.
- Verify that the keyless entry functions (lock, unlock, and panic) operate with all available keyless entry transmitters.
- If the keyless entry system does not function properly, refer to Keyless Entry System Inoperative (Passive) or Keyless Entry System Inoperative (Active) .
- Observe the scan tool ECM RVS Disable History parameters. Verify that no RVS Disable History items are present.
- If RVS Disable History items are present, refer to the applicable subsection in which the failure occurred.
- Verify the scan tool RIM Current CTD Trigger parameter displays None.
- If not specified value, refer to Content Theft Deterrent Malfunction .
- Inspect the external RF antenna connection at the RCDLR. First, gently pull on the coax connector at the module. If the coax comes out, then it wasn't seated properly. Remove and carefully inspect the coax connection for bent blades or a bent center pin. Fix coax connection if necessary and re-seat connector until a "click" is heard. Gently pull on the coax connection to make sure it is seated properly.
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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.