Diagnostic Aids
WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
Observe the driver information center (DIC) messaging that would indicate the charging system requires service.
Inspect for the following conditions:
- Loose or poor connections at the hybrid drive motor battery X350 18-way connector.
- Loose or poor connections at the 12 V negative battery cable G102.
- Verify that the 12 V battery and charging system is within normal operating range and if a battery charger was connected to the vehicle.
- Loose or damaged battery terminals.
- Loose or corroded connections at the accessory dc power control module (APM).