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.

  • 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 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 Heater Control 21997350 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 21997350 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 21997350 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 21997350 maintains top performance when functioning as the Control, Heater & A/C; Climate Control Module; Blower Control Switch unit. The component 21997350 is constructed from durable material and its dimensions span 11.4 x 4.9 x 4.9 inches while weighing 1.30 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. The part 21997350 has available replacement options 15189435, 15136888, 15107752. 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.