Cannot change air flow from floor to vent or to defrost?

2007 BUICK LUCERNE
160,000 MILES • 3.8L • 6 CYL • 2WD • AUTOMATIC
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ROBERT KOTEK
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  • 1 POST
Cannot change air flow from floor to vent or to defrost. just stuck on top vent. It blows fine. but cannot change between floor to vent to defrost.
Jan 10, 2025 at 12:05 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,224 POSTS
Yep, this is common when the mode actuator goes out, here is the location so you can change it out. It looks like you will need to remove the glove box to get at it. Check out the images (below). Please let us know what happens.
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Jan 10, 2025 at 3:08 AM
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ROBERT KOTEK
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  • 1 POST
Just one pic. Said more pics!! Cannot see exact location with this image.
Jan 14, 2025 at 4:33 AM
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ROBERT KOTEK
  • MEMBER
  • 1 POST
i tried to go through glove box and the space is too small! you are wrong! the dash has to be taken out.
Jan 15, 2025 at 2:08 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,224 POSTS
Okay, sorry about that. They do not say that in the instructions.
Jan 15, 2025 at 2:09 AM
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