I have a 2012 Terrain with the UEW (GM 22879332) nav radio (non Intellilink) that shat the bed. At first it was doing the funky stuff on the screen like missing icons until you scrolled over or touched them, then they would appear type stuff. Once in awhile going black, then back to normal, then back to funky icon stuff. A few days ago it went all black. No response. Control panel lights still work and HVAC functions still work...etc. When the power button is pressed I can hear the speakers go live with no noise, but an indication they've been powered on if you will, then off, then repeat about 5 times before it gives up. Open a door, press the power buttun...etc it will cycle like this as I assume the BCM is trying to power it up to get at least the basic "GMC" start screen up. I loaded a random disc into it to see if it will feed in, which it does, and it spins a few rotations when the speaker cycle thing happens, then nothing. I suppose I should also mention I got a random message while screwing with it before it died about an over the air update (which I thought was only for Intellilink). I accepted but it said it failed at 97%. After that it continued its wonkyness until it went all black permanently.
At this point I am assuming this expensive unit is a brick. I assume the screen still functions. Instead of buying an outrageous $900+ new unit from the online GM parts dealers (especially since this radio was an option we already paid big money for back in late 2012
), I'm looking for alternatives. I am aware that if I buy a used UEW unit I will have to have a dealer sync it with the BCM (for $125 or so). Here are my questions:
-Are all UEWs compatible? I found one on the net with a different GM P/N but still a UEW unit (out of an Equinox)
-Is there another component to this system or is it just radio + screen with feedback from BCM?
-Could I put a 2015 Intellilink in instead of a replacement UEW? Will the plugs all match and communicate with the factory wiring?
-Is there any other alternative to a replacement radio that still uses the factory bluetooth phone and back-up camera thats NOT another Bosch POS that will probably die in 2.5 years like this one did?
-Is there a way or guide on how to bench test the radio/screen to diagnose it? I have it all torn down with the radio unit sitting on the desk as I type this.
-Anything else I should know about the system and my options?
Any help would be very appreciated.