Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

Have you recently purchased a new car and bought additional products (warranty, maintenance packages, anti-theft systems, etc.) as part of the F&I process that you weren't originally planning to buy? If so, a reporter is interested in speaking with you about your F&I experience. Please reach out to [email protected] by Wednesday, March 27 with your story and the Edmunds PR team may connect you with the journalist.
Did you get a great deal? Let us know in the Values & Prices Paid section!
Meet your fellow owners in our Owners Clubs

Hot air only comes through vents when below 80°f

caddydylan02caddydylan02 Posts: 1
edited March 2015 in Cadillac
Not sure why, but I can only get air through the vents in my 1990 deville when I set the temp below 80°f. Anyone know why this is?


  • imidazol97imidazol97 Crossroads of America I70 & I75 Posts: 22,978
    edited March 2015
    I'm operating on faint recalls of posts in Buick forums.
    It seems to me that some early 90s Buicks had the same
    configuration to their dash vents so that they couldn't
    be used in colder weather to warm hands as soon as
    there's warmth in the air like I do. There was something
    in the logic assuming if you wanted heat it needed to
    come out at floor level (or defroster and floor)
    rather than dash. It seems to me the automatic systems
    on Buick leSabres changed that in 1995 to the system
    used through 1999 leSabres.

    After that the whole HVAC box changed to a different

    2015 Cruze 2LT, 2014 Malibu 2LT, 2008 Cobalt 2LT

Sign In or Register to comment.