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Make sure this part fits

GM 21997352
Heater Control

2003-2004 GM

Customer Questions & Expert Answers (15)
GM 21997352 Heater Control
GM 21997352 Heater Control
GM 21997352 Heater Control
GM 21997352 Heater Control
  • Part Description
    Control, Air Conditioner Instrument Panel; Climate Control Module; Blower Control Switch
  • Position
    Rear
  • Replaces
    15189436, 15136889, 15107753
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • 2004 Chevy Silverado 2500 HD Heater Control Diagram for 21997352
    The diagram listed above is for your reference. View diagram for your vehicle

    Related Parts for 21997352

  • Vehicle Fitment

    Year Make Model Trim Engine
    2003-2004 Cadillac EscaladeBase8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
    2003-2004 Cadillac Escalade ESVBase8 Cyl 6.0 L GAS
    2003-2004 Cadillac Escalade EXTBase8 Cyl 6.0 L GAS
    2003-2004 Chevrolet Avalanche 1500Base, North Face, On Road Edition, WBH, Z66, Z718 Cyl 5.3 L GAS
    2003-2004 Chevrolet Avalanche 2500Base8 Cyl 8.1 L GAS
    2003-2004 Chevrolet Silverado 1500Base, LS, LT, SS, WT, Z71 Off-Road6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
    2003 Chevrolet Silverado 1500 HDLS, LT8 Cyl 6.0 L GAS
    2003-2004 Chevrolet Silverado 2500Base, LS, LT, WT8 Cyl 6.0 L GAS
    2003-2004 Chevrolet Silverado 2500 HDBase, LS, LT, WT8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
    2003-2004 Chevrolet Silverado 3500Base, LS, LT, WT8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
    View More
    Warning: California's Proposition 65

  • Customer Questions & Expert Answers

    Q:
    Can you help me check if this 21997352 is the right part for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 21997352 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    What should be done after securing the auxiliary HVAC control module for the 2003 Cadillac Escalade? Posted by Customer
    A:
    Reconnect the electrical connectors (3,4) to the auxiliary HVAC control module and reinstall the right rear quarter trim panel.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    What is the first step for installation after detaching the HVAC control assembly for the 2003 Cadillac Escalade? Posted by Customer
    A:
    Attach the HVAC control assembly to the console.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    What should you do after separating the overhead console for the 2004 Cadillac Escalade ESV? Posted by Customer
    A:
    Push the assembly rearward and pull down to access the retaining tabs.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    What should be done after connecting the electrical connector for the 2004 Cadillac Escalade EXT? Posted by Customer
    A:
    Install the blower motor switch back into the overhead console.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Blower Control Switches
    Q:
    What is the first step in the installation process for the 2004 Cadillac Escalade ESV? Posted by Customer
    A:
    Connect the electrical connector.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Blower Control Switches
    Q:
    What needs to be disconnected during the removal process for the 2003 Chevrolet Avalanche 1500? Posted by Customer
    A:
    The electrical connector.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Blower Control Switches
    Q:
    How do you access the retaining tabs of the auxiliary HVAC control assembly for the 2003 Chevrolet Avalanche 1500? Posted by Customer
    A:
    Push the assembly rearward and pull down.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    What should be done after removing the console for the 2003 Chevrolet Suburban 1500? Posted by Customer
    A:
    Release the tabs at the rear of the overhead console to remove the auxiliary blower motor switch.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Blower Control Switches
    Q:
    What is the first step in the installation process for the 2004 Chevrolet Tahoe? Posted by Customer
    A:
    Connect the electrical connector.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Blower Control Switches
    Q:
    What should be done after placing the auxiliary HVAC control assembly back for the 2004 Chevrolet Tahoe? Posted by Customer
    A:
    Reconnect the electrical connectors to the auxiliary HVAC control module assembly.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    What should be done after detaching the overhead console for the 2004 GMC Yukon? Posted by Customer
    A:
    Disconnect the electrical connectors from the auxiliary HVAC control assembly and take the overhead console out of the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    What is the first step in the installation process for the 2004 GMC Yukon XL 2500? Posted by Customer
    A:
    Connect the electrical connector.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Blower Control Switches
    Q:
    What should be done after removing the console for the 2004 GMC Yukon? Posted by Customer
    A:
    Release the tabs at the rear of the overhead console to remove the auxiliary blower motor switch.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Blower Control Switches
    Q:
    What is the first step to replace the HVAC control assembly for the 2004 GMC Yukon XL 2500? Posted by Customer
    A:
    Begin by removing the console roof screw and then take out the console from the headliner.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM Heater Control 21997352 Designed for Proper Fit and Performance

Original OEM GM parts deliver superior quality and meet all performance standards needed for optimal automotive operation. The authentic part identified by 21997352 Heater Control is available in the market under the name GM A/C Switch, Blower Control Switches. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 21997352 Heater Control fits certain Chevrolet Tahoe, Silverado 1500, Silverado 2500 HD models, as well as GMC Sierra 1500, Yukon, Sierra 2500 HD. Additionally, it is compatible with Cadillac Escalade, Escalade ESV, Escalade EXT models.
The original GM component designated by manufacturer part number 21997352 maintains top performance when functioning as the Control, Air Conditioner Instrument Panel; Climate Control Module; Blower Control Switch unit at its Rear. The component 21997352 is constructed from durable material and its dimensions span 11.4 x 5.1 x 5.1 inches while weighing 3.30 Pounds. The Direct Replacement component is ready in New condition to ensure full compatibility with your vehicle system. This component receives the designation of Dash Control Unit; Control, A/C Instrument Panel; Control, Rear Window Defogger. The part 21997352 has available replacement options 15189436, 15136889, 15107753. GM manufacturer provides a warranty that ensures reliable operation of this product. The Shipping Policy and Return Policy pages outline complete details regarding shipping procedures and return processes.
If you want to save money in the long run on maintenance and repairs, you should choose OEM products because they're of the top level of durability. Are you on the quest of finding GM parts, our site is worth a visit. We stock an endless selection of high-quality GM components including things like ignition coils all the way through to fan shrouds and all at prices that can not be matched. You have nothing to worry about because all our OEM parts are covered with a manufacturer warranty, which guarantees superior quality and value.