Circuit/System Verification
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Chevrolet Suburban, and 2018 Cadillac Escalade ESV. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON.
- Verify the Instrument Cluster indicators listed below turn On and Off when commanding the All Indicators On and Off with a scan tool.
- Traction control off indicator
- Stability control off indicator
- Traction/stability control indicator
- If any indicator does not turn On and Off
Replace the P16 Instrument Cluster.
- Go to next step: If all indicators turn On and Off
- Verify the scan tool Body Control Module Traction Control Switch parameter changes between Active and Inactive when pressing and releasing the traction control switch.
- If the parameter does not change
Refer to Circuit/System Testing below.
- Go to next step: If the parameter changes
- If the parameter does not change
- All OK.