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SIERRA 1500 PICKUP
- Air Bag
  - (Passenger Side rear floor)
- Body Control (BCM)
  - (under steering wheel mounted)
- Communication
  - (telematics, OnStar, left hand dash)
    - ID 84833055
    - ID 84960632
    - ID 84967568
    - ID 85124234
    - ID 85129541
    - ID 85527366
    - ID 85543261
    - ID 86815701
- Door
  - (tailgate control)
- Driver Side Assist
  - TPMS (mounted behind rear bumper)
  - camera
    - (Passenger Side cab back panel)
      - opt UVN (bed view camera)
        ID 84837973
        ID 84995709
      - opt UVS (360 view, digital camera)
  - park assist
    - (Passenger Side cab back panel)
- Fuel Pump
  - (Passenger Side rear frame rail)
- Memory
  - (under Driver Side seat)
- Network Gateway
  - (left hand rear engine compartment)
- Power Supply
  - (behind rear seat)
- Steering
  - (steering mounted)
- Suspension
  - (rear frame)
- Temperature
  - (Passenger Side under dash)
    - ID 84579087
    - ID 84579089
- Theft-Locking
  - door lock control (back glass left hand frame)
  - keyless entry (left hand under dash)
  - theft deterrent
    - remote start (opt AVJ)
      - (under floor console)
    - Without remote start
      - (Automatic Transmission top of steering column)
- Towing Control
  - (behind left hand bumper)
    - tow package
    - trailer lamp control
- Transfer Case
  - (left hand inner fender)
- Transmission Control
  - (left hand core support)
SIERRA DENALI 1500
- Air Bag
  - (Passenger Side rear floor)
- Body Control (BCM)
  - (under steering column)
- Door
  - (tailgate control)
- Driver Side Assist
  - camera
    - (Passenger Side cab back panel)
      - opt UVN (bed view camera)
        ID 84837973
        ID 84995709
      - opt UVS (360 view, digital camera)
  - park assist
    - (Passenger Side cab back panel)
- Fuel Pump
  - (Passenger Side rear frame rail)
- Memory
  - (under Driver Side seat)
- Network Gateway
  - (left hand rear engine compartment)
- Power Supply
  - (behind rear seat)
- Stability Control
  - (yaw rate control, center floor)
- Steering
  - (steering mounted)
- Suspension
  - (rear frame)
- Temperature
  - (Passenger Side under dash)
    - ID 84579087
    - ID 84579089
- Theft-Locking
  - door lock control (back glass left hand frame)
  - theft deterrent
    - remote start (opt AVJ)
      - (under floor console)
    - Without remote start
      - (Automatic Transmission top of steering column)
- Towing Control
  - (behind left hand bumper)
    - tow package
    - trailer lamp control
- Transfer Case
  - (left hand inner fender)
- Transmission Control
  - (left hand core support)

Chassis Computer for 2021 GMC Sierra 1500 HD

Fits: SIERRA 1500 PICKUP Communication telematics, OnStar, left hand dash ID 85124234 (change)

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