Mode actuator location

2009 CHEVROLET TAHOE
150,000 MILES • 5.3L • V8 • 4WD • AUTOMATIC
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BROWNINGR
  • MEMBER
  • 1 POST
Controls do not switch fan outlet output. Stuck on face output.
Jan 4, 2021 at 5:52 AM
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ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
Good morning,

I attached the location and the procedure below for you for the replacement of the actuator.

https://www.2carpros.com/articles/replace-blend-door-motor

Make sure you do the calibration when you have finished the repair.

Roy

Actuator Recalibration

When replacing the HVAC control module it will be necessary to allow the HVAC control module to perform a calibration process. When installing the HVAC control module be sure to perform the following:

Important: Do not adjust any controls on the HVAC control module while the HVAC control module is self-calibrating. If interrupted, improper HVAC performance will result.


1. Place the ignition switch to the OFF position.
2. Disconnect the scan tool.
3. Install the HVAC control module.
4. Connect all previously disconnected components.
5. Start the vehicle.
6. Wait 40 seconds for the HVAC control module to self-calibrate.
7. Verify that no DTCs have set as current DTCs.

When replacing the HVAC actuator it will be necessary to allow the HVAC control module to perform a calibration process. When installing the HVAC actuator be sure to perform one of the following:

Important: Do not adjust any controls on the HVAC control module while the HVAC control module is self-calibrating. If interrupted, improper HVAC performance will result.
Jan 4, 2021 at 6:41 AM