There are 28 choices

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Air Bag
- (Passenger Side rear floor)
Body Control (BCM)
- (under steering column)
Communication
- telematics (left hand dash)
- wireless charger (under console, opt K4C)
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)
Steering
- (steering column 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)
  - 10 speed transmission
  - 8 speed transmission

Chassis Computer for 2021 Chevrolet Silverado 1500 HD

Fits: Towing Control behind left hand bumper trailer lamp control (change)

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