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HOMESERVICE MANUALSGMC2021TERRAIN SLT, 4WDREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCOLLISION/AVOIDANCEDRIVER ASSISTANCE SYSTEMSDIAGNOSTIC INFORMATION AND PROCEDURESDTC B101D (FRONTVIEW CAMERA MODULE OR FRONTVIEW CAMERA - WINDSHIELD)CIRCUIT/SYSTEM VERIFICATION
2021 GMC Terrain SLT, 4WD

Circuit/System Verification

2021 GMC Terrain SLT, 4WDSECTION Circuit/System Verification
  1. Verify that DTC B101D 3C is not set as current.
    • If DTC B101D 3C is set as current 
    1. Program the B174W Frontview Camera - Windshield.
    2. Operate the vehicle within the Conditions for Running the DTC.
    3. Verify that DTC B101D 3C is not set as current.
      • If DTC B101D 3C is set as current, replace the B174W Frontview Camera - Windshield.
      • Go to next step: If DTC B101D 3C is not set as current
    4. All OK.
    • Go to next step: If DTC B101D 3C is not set as current 
  2. Verify that DTC B101D 34, B101D 35, B101D 36, or B101D 39 is not set as current.
    • If DTC B101D 34, B101D 35, B101D 36, or B101D 39 is set as current 

      Replace the B174W Frontview Camera - Windshield.

    • Go to next step: If DTC B101D 34, B101D 35, B101D 36, or B101D 39 is not set as current 
  3. All OK.
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:

  • • 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.