I bought a luxury truck from a GMC dealer. This truck had a $35k sticker price and came with leather, buttons, dual climate etc. Loved the truck for 1 day. The first morning in my driveway, I opened the driver door and this low irritating sound was coming out of the dashboard. Drove round trip Phoenix to Tulsa cringing.
First dealer visit- total mystery, not everyone can hear the sound, service bulletin appears and diagnosed as a transmission solenoid; normal noise; not covered. Second dealer visit- I’m hearing things, another service bulletin claims the sound is from the cd motor; normal sound; not covered. Last visit I had them pull the radio- sound went away; reattached the radio and the sound comes back.
Did an internet search “irritating sound radio GMC.” A lot of people have found this sound and the cause is said to be the radio cooling fan.
Dealer quotes me $2200 for the upgraded nav version and I lose the truck for 2 days.
Luxury trucks don’t make sounds that.
I and no one on the web has been able to get GM to do the right thing- what would you do?