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HOMESERVICE MANUALSCHEVROLET2018SILVERADO 2500 HD WT, 2D PICKUP, 6.0L ENG VIN G, RWD, GASREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2695 (OBJECT DETECTION SYSTEM AND PEDESTRIAN PROTECTION SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESPARKING ASSIST SYSTEM MALFUNCTIONCIRCUIT/SYSTEM VERIFICATION
2018 Chevrolet Silverado 2500 HD WT, 2D Pickup, 6.0L Eng VIN G, RWD, Gas

Circuit/System Verification

2018 Chevrolet Silverado 2500 HD WT, 2D Pickup, 6.0L Eng VIN G, RWD, GasSECTION Circuit/System Verification
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 GMC Sierra 3500 HD, 2016 GMC Sierra 2500 HD, 2016 GMC Sierra 1500, 2016 Chevrolet Silverado 3500 HD, and 2016 Chevrolet Silverado 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify the scan tool Park Assist Switch parameter changes between Active and Inactive while pressing and releasing the parking assist switch.
    • If the parameter does not change between Active and Inactive 

      Refer to Circuit/System Testing - Parking Assist Switch Circuit Malfunction.

    • If the parameter changes between Active and Inactive 
  3. Engine running, parking brake applied, transmission in R.
  4. Verify the reverse lamps are illuminated.
    • If the reverse lamps are illuminated 
  5. Verify the scan tool Parking Assist System Status parameter is Enabled.
    • If the parameter is not Enabled 

      Refer to Diagnostic Aids to determine the cause of the inhibit.

    • If the parameter is Enabled 
  6. Verify the parking assist switch indicator turns ON and OFF when turning the parking assist system on and off with the park assist switch.
    • If the indicator does not turn ON and OFF 

      Refer to Circuit/System Testing - Parking Assist Switch Indicator Circuit Malfunction.

    • If the indicator turns ON and OFF 
  7. All OK.
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When to See a Mechanic

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

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