2008 Yukon Denali electronics going haywire?

[Jsdirt]

Since you're $800 poorer, I'd make them fix the problem, and DEMAND they fix it with no further charges. They had one chance ...

[BigRic]

They argued that the modules are ECM-serialized once installed and that they have to start with the "most likely" component.  I've opened a ticket with GM corporate, as I agree with you...

[XSKIER]

Bill would've been half that if you took my advice ...
 
 
... but, glad you got it fixed.

I spent a lot of time and money on the HVAC system of a 2003 Bravada at an independent repair shop. New actuators, new control panel, new control module. Then a trip to a dealer for a $90 diagnosis of a recently replaced actuator. Fed up with nobody loving my 10+ year old car like I do, I had to fix it myself. I bought a $400 tech2 copy from eBay. Then had to spend about three hours figuring out how to navigate through its menus. The answer? Cabin temp sensor reading 140*F at room temperature. $50 part and 10 minutes labor the climate control works like it is supposed to. Now I will be ready when my 2007 Avalanche starts doing old car stuff.

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[Jsdirt]

Best thing anyone can do is repair their own vehicles. I've been doing this a long time, but there's 3 things I won't touch - glass, body work/paint, and front end alignments. Any time I pay someone to do those 3 thing for me, something gets frigged up.

 

Was just cleaning the glass on my SIlverado  in the sun - could see all the overspray the body shop got all over my glass, and the attempts to razor-blade it all off. Also can see "fingerprints" all over the paint - someone put a little too much pressure on too thin of a rag while polishing. Looks awful.

 

Had a windshield put in my '93 940 to fix a water leak, and get rid of the sandblasted OE windshield. They stripped my passenger side wiper arm, and mis-adjusted the driver's side one so it was way up on the windshield when parked.

 

Front end alignment in my Grand Marquis - I get home and check the guy's work. Both pinch bolts on the tie-rod  collar were LOOSE! WTF. To top that off, my steering wheel was sideways going straight. Went to another shop for an alignment on our old '89 S10 Blazer - left the shop with another sideways steering wheel.

 

Back before I had a tire machine and balancer, I bought a brand new set of Amercian Racing polished aluminum mags for my '72 El Camino. They stripped a couple studs by cross threading the BRAND NEW lug nuts, then nicked the finish when I made them fix it. Guy comes out of the bay squealing the shit out of my power steering, and he's laughing about it. Took quite a bit of self control to keep from absolutely losing it. Bought a tire machine and balancer the next day!!

 

Those are just the stories I can recall off the top of my head - I've forgotten many more, like when I discovered my upper control arm loose after driving 2,400 miles to Phoenix - alignment guy never tightened the bolt!