Yep, I know all of that. With the Tahoe running, I hit the Sync button and only the rear fans would change. I could still manually control the rears with the lower controls just fine.
Does anyone know about the relay? Where it is? If it's a part of the blower motor that's up behind the glove box?
It was when the vehicle was running that we noticed that the rear blower was the only one that was affected by the manual controls. The front blower wasn't changing speeds at all. Looks like the fuse is staying out until I can talk to someone at the dealership.. :( Does anyone know if the relay...
Damn... I had no idea... I only bought the Tahoe few months ago, and didn't know that was a thing. I'll throw the fuse back in it and check, but I don't think that's it due to the fan speed not changing when I manually adjusted it. That's good info though. Thanks
While driving today, I noticed something odd: after shutting off the truck, the front blower kept running. I tried manually adjusting the fan speed and realized only the rear vents responded—the front just kept blowing at full force. To avoid draining the battery overnight, I ended up pulling...
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