Diagnostic Aid

2015 Buick Regal Base, 2.0L Eng VIN X, AWDSECTION Diagnostic Aid

This is an informational DTC set by the ECM. It is set to provide an indication that the distance sensing cruise control module will not be able to perform as intended. Diagnose any other DTCs first.

NOTE:

During normal diagnostic and/or repair verification technicians may find that a "Service Adaptive Cruise Control" message may be displayed by the distance sensing cruise control module. Do not replace the distance sensing cruise control module for this condition.

If the SERVICE DRIVER ASSIST SYSTEM message is displayed in the driver information center on with no DTCs set, perform the following steps:

  1. Remove the key from the ignition, open and close the driver's door to turn off retained accessory power, and wait 60s.
  2. Ignition ON, if the SERVICE DRIVER ASSIST SYSTEM message is still present, operate the vehicle at speeds greater than 15km/h (10 MPH) to complete the self test. The distance sensing cruise control module should request the message be turned off.
  3. If the message is present with no DTCs set after the drive cycle, disconnect the battery for at least 60s then reconnect the battery.
  4. Operate the vehicle at speeds greater than 40km/h (25 MPH), the distance sensing cruise control module should request the message be turned off.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.