ABS Indicator
WARNING: This page is about a different car, the 2011 GMC Cab & Chassis Sierra, 2011 Chevrolet Suburban, and 2011 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The instrument panel cluster illuminates the ABS indicator when the following occurs:
- The EBCM detects a malfunction with the antilock brake system. The instrument cluster receives a serial data message from the BCM requesting the ABS lamp illumination.
- The instrument cluster performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 5 seconds.
- The instrument cluster detects a loss of serial data communications with the EBCM.