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Circuit/System Verification

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify that DTC B356A is not set.
    • Go to next step: If the DTC is not set 
  3. Verify that DTC B0987 is not set.
    • Go to next step: If the DTC is not set 
  4. Verify the scan tool Frontview Camera System Status parameter is Normal.
    • If the parameter is Undefined or Malfunction 

      Refer to Diagnostic Aids.

    • Go to next step: If the parameter is Normal 
  5. Verify the scan tool Lane Keep Assist Switch Status parameter changes between ON and OFF when pressing the lane keep assist switch.
    • If the parameter does not change between On and Off 

      Refer to DTC B356A 

    • Go to next step: If the parameter changes between On and Off 
  6. Verify the scan tool Lane Keep Assist Indicator Status parameter changes change between On and Off when pressing the lane keep assist switch.
    • If the parameter does not change between On and Off 

      Refer to DTC B0987 

    • Go to next step: If the parameter changes between On and Off 
  7. All OK.
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