Make sure this part fits

GM 21997350
Heater Control

2003-2004 GM

Customer Questions & Expert Answers (15)
GM 21997350 Heater Control
  • Part Description
    Control, Heater & A/C; Climate Control Module; Blower Control Switch
  • Replaces
    15189435, 15136888, 15107752
  • Manufacturer
    General Motors
Make sure this part fits
$167.91 MSRP: $297.42
You Save: $129.51 (44%)
Core Charge: $100.00
Currently Unavailable

Due to manufacturer supply shortage, this item isn't currently available for ordering.

  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number21997350
    Part DescriptionControl, Heater & A/C; Climate Control Module; Blower Control Switch
    Other NamesDash Control Unit; Control, A/C Instrument Panel
    Item Dimensions11.4 x 4.9 x 4.9 inches
    Item Weight1.30 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces15189435, 15136888, 15107752
    ManufacturerGeneral Motors
    SKU21997350
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • 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
  • Customer Questions & Expert Answers

    Q:
    Can you help me check if this 21997350 is the right part for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 21997350 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the rear auxiliary A/C switch assembly on Cadillac Escalade ESV? Posted by Customer
    A:
    Deiaglpropriate the front of the overhead console from the headliner to replace the rear auxiliary A/C switch. Next, move your assembly rearward and then pull down so that you can get the retaining tabs. Take out the auxiliary A/C switch by pressing tabs at the rear to release it and pushing it out back then detaching the electrical connector. When installing, plug the electrical connector in and install the auxiliary A/C switch to the console and then reattach the overhead console to the headliner.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the Auxiliary Blower Control Switches on Cadillac Escalade ESV? Posted by Customer
    A:
    You must take out the console unit first from its seating spot in the headliner. Unsnap the tabs from the back of the overhead console for access to the auxiliary blower motor switch then detach its electrical connector . Reparing the blower motor switch requires connecting the electrical connector first and inserting the switch into the console. Learn how to place the overhead console back on the headliner afterward.
    Posted by ChevyPartsGiant Specialist
    Q:
    How do you secure the console back to the headliner for the 2003 Cadillac Escalade? Posted by Customer
    A:
    Reinstall the console to the headliner and secure it with the overhead console screw, tightening it to 2 N.m (18 lb in).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    What should be done after removing the trim panel for the 2003 Cadillac Escalade? Posted by Customer
    A:
    Disconnect the electrical connectors (3,4) from the auxiliary HVAC control module and remove the screws securing it.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    What is the final step in the installation process for the 2004 Cadillac Escalade EXT? Posted by Customer
    A:
    Reinstall the overhead console to the headliner.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Blower Control Switches
    Q:
    What is the final step in the installation process for the 2003 Chevrolet Avalanche 1500? Posted by Customer
    A:
    Reinstall the overhead console to the headliner.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    What is the first step in the installation process for the 2003 Chevrolet Avalanche 1500? 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 Suburban 1500? Posted by Customer
    A:
    The electrical connector.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Blower Control Switches
    Q:
    What is the final step in the installation process for the 2004 Chevrolet Tahoe? Posted by Customer
    A:
    Reinstall the overhead console to the headliner.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Blower Control Switches
    Q:
    What is the first step for installation for the 2004 Chevrolet Tahoe? Posted by Customer
    A:
    Place the auxiliary HVAC control assembly back into the overhead console.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    What is the final step in the installation process for the 2004 GMC Yukon? Posted by Customer
    A:
    Reinstall the overhead console to the headliner.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Blower Control Switches
    Q:
    What is the final step in the installation process for the 2004 GMC Yukon XL 2500? Posted by Customer
    A:
    Reinstall the overhead console to the headliner.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Blower Control Switches
    Q:
    What is the next step after removing the overhead console for the 2004 GMC Yukon? Posted by Customer
    A:
    Remove the auxiliary HVAC control assembly from the overhead console.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    How do you secure the console back in place for the 2004 GMC Yukon XL 2500? Posted by Customer
    A:
    Reinstall the console to the headliner and secure it with the overhead console screw, tightening it to 2 N.m (18 lb in).
    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 21997350, Excellent Performance and Perfect Fitment

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