How do I reset the HVAC Blend on a 2007 GMC Yukon??

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ID Status Date Year Make Model Transmission Type A/C Controls Public/Private
#15239 Closed 2007 GMC Yukon public

Only the 2 vents on the drivers side are blowing hot, all the rest are blowing cold like they are supposed to be!!!

I’ve tried removing the fuse for a minute, then putting it back in & cramping the vehicle for a minute, killing it again for 30 seconds at least but no longer than a minute g trying the controls & its still blowing hot!! So what is my next step?? Please & thanks, appreciate u in advance!!
Sparky

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.

Alternate Method (w/o Scan Tool)

  1. Place the ignition switch to the OFF position.
  2. Remove the HVAC BATT fuse in the underhood fuse box for a minimum of 10 seconds.
  3. Install the HVAC BATT fuse.
  4. Start the vehicle.
  5. Wait 40 seconds for the HVAC control module to self-calibrate.
  6. Turn the ignition off for at least 10 seconds but no more than 30 seconds.
  7. Restart the engine and test the HVAC operation.

If the problem persists the actuator is likely faulty and should be replaced.

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