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.

10.0

really awful
Typical Repair Cost:
No data
Average Mileage:
120,000 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. not sure (1 reports)
2004 GMC Envoy AC / heater problems

AC / heater problem

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2004 GMC Envoy Owner Comments

problem #1

Feb 092013

Envoy

  • Automatic transmission
  • 120,000 miles

A D V E R T I S E M E N T S

when my AC/heat is on and the compressor kicks in it causes the rpm to drop significantly. If slowing the car down to approach a turn or stop sign it cuts off. It has been happening for 8 months and no body can figure it out. I have not fixed it because it doesn't seem worth it to me since I read everywhere that sooooooo many other people are having the same problem

- , Hagerstown, MD, USA

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