Steve Ferraz Posted September 2, 2015 Report Share Posted September 2, 2015 Before I start, I'd like to thank everyone who helped me out with my previous issues regarding my Deville. As usual, it was a relay blowout but with the added bonus of a loose fuse box. This time it is another electrical glitch. Everytime the temp hits 75F and up on the climate control screen, it glitches and drops to -38. This causes it to switch from A/C to the heater. Not good when it is in the 80's and 90's outside. What causes this? Thanks. Quote Link to comment Share on other sites More sharing options...
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