Diagnostic Aids

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

If the customer's concern is that the Stability System Disabled message is displayed intermittently, communicate with the customer to determine what driving conditions are being experienced at the time the message is displayed. The EBCM may be unable to successfully initialize the system during operation on very winding roads. Initialization may also be unsuccessful if pressure is continuously applied to the brake pedal during the initialization period.

The VSES solenoid coils may overheat during aggressive driving. The Stability System Limited message is usually displayed prior to the Stability System Disabled message in the case of overheating solenoid coils.

A medium-low brake fluid level in the master cylinder reservoir may cause the Stability System Disabled message to be displayed during stopping or turning maneuvers. This condition will also cause the red brake warning indicator to turn ON. Ensure the master cylinder reservoir has an adequate brake fluid level.

If the message is displayed due to any of the above conditions, no diagnosis or repair of the VSES is required.