Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


fairly significant
Typical Repair Cost:
Average Mileage:
109,000 miles
Total Complaints:
2 complaints

Most Common Solutions:

  1. not sure (1 reports)
  2. replace actuator door (1 reports)
2004 GMC Envoy XL AC / heater problems

AC / heater problem

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2004 GMC Envoy XL Owner Comments

problem #2

Jan 022015

Envoy XL SLT 3.2L V6

  • Automatic transmission
  • 138,000 miles


Driver side in split system will not heat. When I turn temp control for driver side to heat, it will only go up to 64F and starts cooling driver side. Fix so far, park in the sun leave heat/AC off and turn on seat heater while wearing a heavy coat! Is fix going to junk yard and pulling a control?

- , El Cajon, CA, USA

problem #1

May 032012


  • Automatic transmission
  • 80,000 miles

this is just 1 of many things that have went wrong with this $45,000 hunk of junk that ive put less than 10k miles on in 2 yrs. My mechanic hates the envoys and trailblazers cuz they caused the death of 1400 of our servicemen in Iraq and Afghanistan, which the resulting lawsuits are before the supreme court now. The wiring harnesses that cause the electrical problems that resulted in the vehicle dying and not restarting without replacing the brain aka pcm (another thing Ive had to replace at a cost of $1213) left our boys stranded and open to be ambushed by rebels. Gm knew of these problems but have yet to issue a recall. I have always been a GM lady but I will never give GM another penny of my hard earned money!

- , Vancouver, WA, USA

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