Dual mode control door either broken or the servo motor has failed on the driver's side. A good shop can run the diagnostics, fix it and then reset the system so it functions correctly. This is something that you need a professional to do as it may involve removing the entire dash assembly to gain access to those doors and servos. Then the entire HVAC system will need to be reset and you need a dealer quality scanner to do the reset.
2007 Buick Lucerne heat on passenger side, but no heat on drives side?
2007 Buick Lucerne CXS FWD
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Maintenance & Repair
On my 2007 Buick Lucerne, only heat comes out of the passenger side and rear ducts while A/C is on and blowing cold on the driver's side. What would cause this problem?
2007 Buick Lucerne V6 CXL FWD
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Maintenance & Repair
I have a 2007 Buick Lucerne that I recently purchased used. When the car is running the headlights stay on unless I turn the switch to off. The switch is spring loaded so it wont stay in the off p...
2007 Buick Lucerne V6 CXL FWD
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Maintenance & Repair
Hi I have a question my car is a Buick Lucerne cxs v8 2007 this has magnetic ride but I want to make a conversion to conventional suspension, can I do and what type of shock absorbers can be put a...
2007 Buick Lucerne CXS FWD
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Maintenance & Repair
The door panel and window on just my front passenger side works sometimes but never consistently if it was a fuse wouldn't more then just that side go out?
2006 Buick Lucerne V8 CXL FWD
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Maintenance & Repair
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