Circuit/System Verification

WARNING: This page is about a different car, the 2018 Buick Regal TourX and 2018 Buick Regal. 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 while pressing and releasing the S75 Traction Control Switch.
- If the parameter does not change
  Refer to Circuit/System Testing .
- Go to next step: If the parameter changes
All OK.