Circuit/System Verification

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON.
Verify the DTC B3623, B3794, P0564, P0565, P0567, P0568, P056C, P0580, P0581, P0589, P0592, P0593, P155A-P155C, or P162C is not set.
- If the DTC is set
  Refer to DTC B3623, B3794, P0564, P0565, P0567, P0568, P056C, P0580, P0581, P0589, P0592, P0593, P155A-P155C, or P162C
- If the DTC is not set
Verify the scan tool Lane Departure Warning Indicator Status parameter changes between ON and OFF when pressing and releasing the lane departure warning switch.
- If the parameter does not change between ON and OFF
  Refer to Circuit/System Testing.
- If the parameter changes between ON and OFF
All OK.