general problems of the 2006 GMC Envoy

Ten problems related to power train have been reported for the 2006 GMC Envoy. The most recently reported issues are listed below.

1 Power Train problem

Failure Date: 12/27/2018

Radiator and transmission went while driving on a highway. My mechanic told me the part that failed never fails and he was shocked that it did.

2 Power Train problem

Failure Date: 11/02/2015

When starting my vehicle and start to drive I notice 2 check engine lights pop on. One engine light has a arrow pointing down and the other just have the engine light symbol and the my speed starts to reduce a lot. I will pull over to the side of the road shut the car off wait for 5-10 minutes and crank it up and after maybe 15-20 minutes of driving it pops back on. I've had the mechanic to diagnostic machine and he has said the throttle body needs changing, had that done and the same problem came back. So I had my old one put back on and then the mechanic say maybe it's the gas pedal sensor. Had that changed and the problem is still their. I love my truck but I don't have the money to kep trying to fix this problem. I need help, from someone, please.

3 Power Train problem

Failure Date: 02/09/2015

Engine suddenly stopped running, placed shift lever to park position. Engine would not restart. Transmission was now locked in park, causing inability to push vehicle to safety. Repair by GMC dealer involved repairing electrical short in factory wiring under dashboard at the firewall, in the area of the brake booster mount. Apparent cause is improper routing of wiring at time of vehicle mfr, causing abrasion of wiring over time.

4 Power Train problem

Failure Date: 08/01/2014

To start off, when you go in drive and start to move the truck lost power to the motor but still stayed running. Seemed like the truck didn't know if it wanted to be in 4x4 or 2 wheel. I took my foot off gas and min later it was fine. Keeps happening . The driver seat back support felt like it started to over heat the motor on it, now not working at all. And sometimes as I use my brakes and come to a stop easy it feels like I lost brakes as if abs keeps going nuts.

5 Power Train problem

Failure Date: 04/30/2014

Ive had car one month to the day were do I start . The car cuts out while driving. Shows codes one sec. Next sec I have several looks clean but so many probs I reall feel fucked. I purchesed a lemon.

6 Power Train problem

Failure Date: 04/25/2014

Accident on 4/25/14 after my 2006 GMC Envoy shut off completely while I was making an left hand turn. I informed GMC of it but got no response. The vehicle has been doing this for the past 6 months. I have contacted GMC since the accident and still have gotten no response.

7 Power Train problem

Failure Date: 08/18/2012

First, gas gage started miss reading, then a month or 2 later it has been stuck on e with low indicator light on ever since. Second, last week my daughter stopped the vehicle, put the gear selector in park, car kept moving, dash indicator was still indicating drive and kept moving. Good thing she didn't get out of the car. I saw a big recall for gm multiple years but not my model for bad shifter cable and that is what broke. That could have been a very serious incident and could have caused someone to get seriously injured.

8 Power Train problem

Failure Date: 05/13/2012

While driving vehicle, started to rough idle and almost caused a vehicle accident because I was unable to stop the car while driving, engine shutdown while driving and lost all power and braking & steering ability, restated vehicle and got burning gas smell from vehicle exhaust pipe and check engine light on with code p0014, got vehicle serviced and had new sensor installed but now getting pinging sound from engine under load and while driving at speed and minor vibration while at idle. I feel this is a serious issue with this vehicle where almost feel unsafe driving vehicle due to running risk of engine shutdown while at speed and unable to steer or brake when engine stalls due to this condition with code p0014 in cars computer. Would really like to be contacted about this issue, gm should have a recall to inspect these systems and provide free repairs of any faulty sensors and provide a full service check on this vehicles. I felt real unsafe to drive this vehicle due to worrying about causing engine damage or having a accident because of this high end failure of this componet.

9 Power Train problem

Failure Date: 05/03/2010

On may 3rd 2010, the truck just died in the middle of the road while driving home with my son at night. I had to quickly try to get to the side of the road without any power assist. The Envoy would not start again, not even turn over. The shifter was locked and it could not even be put into neutral to push it over to the side. Various messages scrolled by on the vehicle display and many of the warning lights were dimly blinking. I had to get it towed. I scanned the following codes p1516 & p1682, looked up the symptoms on the internet and found many hits that said the issue was with a faulty ignition switch. After charging up the battery which ran down on the hazards while waiting an hour for a tow, I replaced the ignition switch and the Envoy now works again. It has less than 30,000 miles on it. This type of failure concerns me very much! I consider it a huge safety issue that a vehicle can die while driving and then be so completely disabled by a $30 part. This could of had much more dire consequences had it happened on a freeway as opposed to a suburban side street.

10 Power Train problem

Failure Date: 06/03/2009

2006 GMC Envoy denali purchased. Beginning at about 10,000 miles the transmission would shift abruptly into 1st gear after the car had stopped moving. This does not happen every time but does happen often and when it does it feels as if the car has been hit from behind. Dealer has not been able to duplicate the problem but states that other owners have reported the same problem.



Fuel Economy of Envoy Vehicles
Envoy Service Bulletins
Envoy Safety Recalls
Envoy Defect Investigations