Cadillac Escalade, EXT and ESV Forum - 2007-2014 Discussion, Stereo and climate control randomly resetting in Cadillac Escalade Forums; Hoping someone can shed some light on this one, usually find my answers searching but haven't found anything like this ...
Hoping someone can shed some light on this one, usually find my answers searching but haven't found anything like this yet.
At random times, the radio unit (radio, screen, sound) and the climate control are shutting off and coming right back on. Only happens while driving, the engine does not cut out, driving stays normal. The radio always comes back to right where it was after displaying the start-up screen. Half the time, the climate control will come back to where it was (auto mode, a/c on), but the rest of the time, it comes back in manual temp mode with the seat coolers on full speed and the mirror defrost on.
Occasionally, this coincides with a coolant level low warning on the dash -- but not always. I check the coolant level each time, and it isn't low, engine temp is always perfect.
It started this about 9 months ago, but was very sporadic at that time, maybe once every couple of months. Now, in the past couple of days, it is happening 2-3 times per trip.
The only other recent changes -- about 2 weeks ago I gave my throttle body a thorough cleaning. I took the blade out to get everything spotless, and didn't get it back in the same direction the first time, which gave me some fits. After turning the blade around, everything was great, idle much smoother, throttle more responsive.
Any ideas? Is there a common ground connection for the stereo and climate controls somewhere that I can check? Or is this some sort of built in attention-getter for the coolant level? I think I need to replace the coolant level sensor as well for good measure.
You'll probably get a better response posting your question as a new topic. That said, did you just power it off, and just need to press the power button? The easiest way to reset the entire truck is to disconnect the battery(ies) for awhile.
For anyone that may be thinking about my original post, I'm still having the same issue -- I can make it temporarily go away by pulling the HVAC battery fuse for 10 minutes to reset just the HVAC system, but a few days later, the Coolant Level Low warning starts coming back on and the HVAC randomly shuts off/turns back on. From what I've read -- the 2007 doesn't have a coolant level sensor, right? I've got two batteries, all connections look good, all grounds that I can find are good and clean.
Just in case someone comes across this in the future, I fixed my cause -- the voltage regulator in the alternator was going bad. Installed a reman 160amp alternator, no issues in 3+months.
Thanks for taking the time to post your experience! That’s what makes this community great, the willingness that I see to assist one another. I am glad to hear that you are no longer experiencing a concern with your Escalade. Please feel free to reach out to us if you have any future questions.