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GM 15858579
Heater Control

2001-2007 GM

Customer Questions & Expert Answers (23)
GM 15858579 Heater Control
GM 15858579 Heater Control
GM 15858579 Heater Control
  • Part Description
    Control, Heater And Air Conditioner Control; Climate Control Module; Blower Control Switch
  • Replaces
    09375785, 25753628, 9375785
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers

  • 15858579 Heater Control is Ref No. 15 in the diagram below

    2007 GMC Savana 2500 Heater Control Diagram for 15858579
    The diagram listed above is for your reference. View diagram for your vehicle

    Related Parts for 15858579

  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number15858579
    Part DescriptionControl, Heater And Air Conditioner Control; Climate Control Module; Blower Control Switch
    Other NamesDash Unit Control; Control, A/C Instrument Panel
    Item Dimensions11.3 x 3.3 x 3.3 inches
    Item Weight1.00 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces09375785, 25753628, 9375785
    ManufacturerGeneral Motors
    SKU15858579
    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
    2001-2007 Chevrolet Express 1500Base, LS, LT6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.7 L GAS
    2001-2007 Chevrolet Express 2500Base, LS, LT6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 6.6 L DIESEL
    2001-2007 Chevrolet Express 3500Base, LS, LT8 Cyl 4.8 L GAS, 8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
    2001-2007 GMC Savana 1500Base, LS, LT, SLE, SLT6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.7 L GAS
    2001-2007 GMC Savana 2500Base, LS, LT, SLE, SLT6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 6.6 L DIESEL
    2001-2007 GMC Savana 3500Base, LS, LT, SLE, SLT6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS

  • Customer Questions & Expert Answers

    Q:
    Is this 15858579 designed for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 15858579 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the blower control switches on Chevrolet Express 1500? Posted by Customer
    A:
    The first step to replacing the blower motor switch is to take off the instrument cluster trim plate and then pull the connector away from the switch. Now, swing both tabs away on the side of the switch and pull it out of the bezel. Once you have the switch in place, connect its electrical connector, then put the trim plate back onto the instrument cluster.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the A/C Switch control assembly on Chevrolet Express 2500? Posted by Customer
    A:
    Begin A/C Switch replacement by taking out the Instrument Cluster trim plate and the retaining screw from the left A/C Switch frame. Use a steering wheel pivot motion on the A/C Switch to free up the right side tab followed by pulling it outside for access to vacuum and electrical connectors. First remove any electrical connectors followed by vacuum connectors from the assembly. When installing the components first connect vacuum connectors then electrical connectors. Set the tab located on the right side of the A/C Switch into the instrument panel slot before pivoting it into final position. After fitting the retaining screw to the left edge of the A/C Switch maintain a torque tension of 4 n.m (35 lb in) while installing it before returning the Instrument Cluster trim plate.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the blower control switches on Chevrolet Express 3500? Posted by Customer
    A:
    To change the Blower Motor Switch start by taking the instrument cluster trim plate off and next detach its electrical connection before taking out the switch through its bezel tabs. Place the switch into its bezel space then join the electrical connector to both parts and install the instrument panel trim.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the A/C Switch control assembly on Chevrolet Express 1500? Posted by Customer
    A:
    Before you can install a new A/C switch, remove its trim plate and the retaining screw. Turn the A/C switch slightly and push the locking tab on the right away, then pull off the electrical connectors and vacuum connector before taking it out. For installation, fit the vacuum connector and electric connectors back on, put the A/C switch in place, and use the retaining screw to secure it with 2 N.m (18 lb in) of torque. Then, put the I/P cluster trim plate back into place.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the blower control switches on GMC Savana 3500? Posted by Customer
    A:
    Begin by taking off the instrument cluster trim to reach the Blower Motor Switch. Disconnect its electrical connector afterward. Push open the switch holding tabs on each bezel side to extract it. You return the switch to its bezel position and then connect its electrical cable. Afterwards reinstall the trim panel of your instrument cluster.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the A/C Switch in the HVAC Control Assembly on GMC Savana 2500? Posted by Customer
    A:
    Beginning the A/C switch replacement process requires removal of the I/P cluster trim plate and single retaining screw from the control assembly before pivoting and disconnecting components. First pivot the assembly to release the right side locking tab and detach all electrical connectors and vacuum connector before you remove the A/C switch. During installation begin by joining the A/C switch electrical connectors alongside the vacuum connector before inserting the A/C switch. Install the retaining screw to the A/C switch, then adjust it to 2 N.m (18 lb in) of torque before putting the I/P cluster trim plate back in place.
    Posted by ChevyPartsGiant Specialist
    Q:
    What is the final step after installing the HVAC control assembly for the 2005 Chevrolet Express 2500? Posted by Customer
    A:
    Reinstall the I/P cluster trim plate.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    What should be ensured during the installation of the HVAC control assembly for the 2004 Chevrolet Express 1500? Posted by Customer
    A:
    Ensure to follow the Fastener Notice in Service Precautions.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    What is the first step for installation of the new switch for the 2007 Chevrolet Express 2500? Posted by Customer
    A:
    Snap the switch back into the bezel.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Blower Control Switches
    Q:
    How do you install the new HVAC control assembly for the 2004 Chevrolet Express 3500? Posted by Customer
    A:
    Place the HVAC control assembly back into the front headliner and attach the bezel.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    What is the first step in the installation process for the 2001 Chevrolet Express 3500? Posted by Customer
    A:
    Connect the vacuum connectors followed by the electrical connectors.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    What should you do after attaching the bezel for the 2003 Chevrolet Express 3500? Posted by Customer
    A:
    Reconnect the electrical connectors and reinstall the front headliner.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    What should be done after lowering the front headliner for the 2002 Chevrolet Express 2500? Posted by Customer
    A:
    Disconnect the electrical connectors and then remove the HVAC control assembly from the front headliner.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    What is the final step after installing the HVAC control assembly for the 2001 GMC Savana 2500? Posted by Customer
    A:
    Reconnect the electrical connectors and reinstall the front headliner.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    What should be done after snapping the switch into the bezel for the 2001 GMC Savana 1500? Posted by Customer
    A:
    Reconnect the electrical connector to the switch.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Blower Control Switches
    Q:
    How do you remove the switch from the bezel for the 2006 GMC Savana 2500? Posted by Customer
    A:
    Remove the switch from the bezel by releasing the tabs on the side of the switch.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Blower Control Switches
    Q:
    What should be done after connecting the electrical connector for the 2003 GMC Savana 2500? Posted by Customer
    A:
    Snap the front control switch back into place on the headliner.
    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 Savana 3500? Posted by Customer
    A:
    Install the front control switch bezel onto the headliner.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    What should be done after removing the front control switch bezel for the 2006 GMC Savana 3500? Posted by Customer
    A:
    Unsnap the retainers to take out the front control switch and disconnect the electrical connector.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    What is the first step to replace the HVAC control assembly for the rear auxiliary for the 2005 GMC Savana 2500? Posted by Customer
    A:
    First, remove the HVAC control assembly bezel from the headliner and lower the front headliner to access the rear of the HVAC control assembly.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    How do you disengage the HVAC control assembly for the 2003 GMC Savana 3500? Posted by Customer
    A:
    Pivot the HVAC control assembly to disengage the locking tab on the right side.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar A/C Switch
    Q:
    What should be done after connecting the electrical connector for the 2001 GMC Savana 3500? Posted by Customer
    A:
    Snap the front control switch back into place on 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 15858579, Excellent Performance and Perfect Fitment

To ensure reliability, purchase GM part # 15858579 Heater Control. It is sometimes referred to as GM A/C Switch, GM Blower Control Switches. Choosing OEM parts is the optimal decision for guaranteeing superior quality and perfect performance. These components undergo stringent quality checks and are carefully constructed to comply with GM's factory specifications, ensuring a smooth installation process.

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