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SIERRA 2500 PICKUP
- automatic temperature control (opt CJ2)
  - heated seats (opt KA1)
    - heated and ventilated (opt KQV)
      - dual zone
      - single zone
    - heated only seat
      - ID 84692239
      - ID 84963888
  - non-heated seat
    - dual zone
    - single zone
- manual temperature control (opt C67)
  - heated seats (opt KA1)
  - non-heated seat
    - rear defrost (opt C49)
    - Without rear defrost
      - ID 84499500
      - ID 84499501
SIERRA DENALI 2500
- (automatic temperature control, opt CJ2)
  - heated seats (opt KA1)
    - heated and ventilated (opt KQV)
      - dual zone
      - single zone
    - heated only seat
      - ID 84692239
      - ID 84963888
  - non-heated seat
    - dual zone
    - single zone

Heater and A/C controls for 2021 GMC Sierra 2500 HD

Fits: SIERRA 2500 PICKUP automatic temperature control opt CJ2 heated seats opt KA1 heated only seat ID 84963888 (change)

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