HVAC passenger side is hot?

Tiny
HFRED36
  • MEMBER
  • 2011 BUICK REGAL
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 220,000 MILES
Sometimes only blows cold air on drivers side but passenger side is hot. I can’t see to find the blend door actuator for that.
Sunday, February 1st, 2026 AT 11:47 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,852 POSTS
Hello,

So the driver side blend door actuator is on the left side of the HVAC plenum above the accelerator pedal. Make sure to reset the system once the part is replaced, here is a guide to help.

https://www.2carpros.com/articles/step-by-step-guide-to-reset-your-cars-hvac-system-an-essential-for-every

Check out the images (below). Let us know if you need anything else.

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Monday, February 2nd, 2026 AT 9:27 AM

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