The pass lock system will not let the truck start has left me stranded many times. Heater blower motor stopped working on 1, 2, & 3 settings. Blower motor resistor and plug were burnt, started a minor fire could have been worse. When I turn the vehicle to the right makes a large vibration and the vehicle shuts down can't get it to turn back on.

- Rockwall, TX, USA

The vehicle will go from 2 wheel drive to 4 wheel drive without any warning. This has happened 4 different times. I stop and push the button to return to 2 wheel drive and it goes back to 2 wheel. I did not do any input when it changes to 4 wheel spontaneously while moving at 20 to 30 mph and then turning a corner, the wheel stutters, I look at the dash and it's in 4 wheel drive.

- Pahrump, NV, USA

The contact owns a 2008 Chevrolet Colorado. The contact stated that the vehicle unexpectedly shifted from two wheel drive into four wheel drive, disrupting manner in which the vehicle would steer. The windshield wipers would also engage and disengage unexpectedly. The dealer was notified and stated that there were no recalls or warranties addressing the failure. The contact was informed that the BCM needed to be reprogrammed and the two wheel drive switch needed to be replaced. The manufacturer was notified and stated that they would contact the dealer for more information. The contact also filed a complaint with the manufacturer. The failure mileage was 77,000.

- Tekamah, NE, USA

For more than 10,000 miles (starting around 33-34,000 miles) and over a year my truck has experienced an intermittent rough idle. Without warning the idle will become rough and on several occasions the truck has almost stopped running. These events do not trigger a check engine light. When I take the truck to the dealer they cannot explain what is taking place. The truck has been in at least 6 times and I am losing my patience. The standard explanation is no check engine light then the problem is impossible to diagnose. I have contacted Chevrolet and so far they have not been any help. I'm very concerned that I will find myself pulling into an intersection or crossing a street and the truck will not run! I was asked to change gas stations and I did to no effect. I have been inconvenienced by this recurring problem and I do not feel safe in the truck. After going to a Colorado truck owners forum on the internet I now know that I am not alone. Many owners are experiencing this same problem and are not able to get it resolved through the dealer or Chevrolet. My truck has approximately 44,500 mile on it and is paid for. I like the truck but it is not safe and it is not dependable.

- Fayetteville, AR, USA

The brakes drag and squeal all of the time. They grab some of the time, and have temporarily locked up on 6 occasions. Being ABS; they don't actually lock up but do grab hard enough and long enough to make the tires "chirp". the problems are not noticeable at highway speed but the lower than expected mpg and higher than expected variation in mpg makes me think they occur at all speeds. Having no doubt that the brakes are defective worries me. I'm anxious about when they will fail and at what speed. On four of the six "lock up" occasions the vehicle had shifted itself into high range 4WD. That might have happened but went unnoticed the other two times. Every time it shifted itself into 4WD (and tried to lock the brakes) was after backing up. When the vehicle is self braking; a turn of the steering wheel makes the vehicle brake harder. A turn of more than 1/2 rotation results in a "grab" and a "chirp". if starting from a stop and turning at the same time, the rear wheels might spin. I've been driving 4X4S for many years. I know that front wheels "lurch" during a tight turn. That is not what this vehicle is doing. It will exhibit the same symptoms in 2wd. I think it's an electrical problem. This Colorado has been to the shop for 8 electrical fixes already. The number and variety of electrical problems with the Colorado model are staggering. They should be recalled and made reliable in the name of safety. Unfortunately, it seems like a certain number of injuries and deaths must be reached to warrant a recall.

- Tulsa, OK, USA

I purchased a Colorado one week later my brakes went out. And I managed not to get in a crash. I took it to the dealer and they fixed it. They told me the vehicle sits on the lots 4 months and months and stuff might wiggle loose. Ok I figured. Three weeks later which would be 3/5/09 I left work and it was a nice day I turned my ac on and noticed my blower only worked on 2 and 3 my 1 and 4 would not work so I drove to an auto parts store about 10 miles away and talked to the guy and he told me its probably blower motor resistor switch. Which the part was only 20 bucks but he convinced me to take it to the dealer. Because it under warranty and things like this can short out and cause fires. So I left the store and about 5 miles down the road stuff started shorting out on my truck. Than my passenger air bag deployed and than within 1/2 mile stuff was crazy there was smoke every where so I slammed on my brakes which they didn't work so I tried pulling off the side of the road my steering was locked up.and than something exploded under my dash than I started seeing smoke billowing out of my hood which quickly turned into flames. Keep in mind the whole time this is going on my truck is going 60 mph and I have no brakes. So than I started seeing flames under my dash than my floor than everything on my floor started catching on fire and I started throwing thing out the window and the whole time this is going on I am trapped in my truck while its on fire my door locks are spacing out and im trapped. About 1 mile after my truck was pretty much fully engulfed than some how I managed to get Y door open and jump out before I looked down my spedo said 35 mph and when I jumped out I managed to land on my feet and my truck slid in the mud 4 about 50-75 ft within minutes 4 police and 18 firefighters where there and 2 or 3 firefighters got hurt from shrapno. What scared me was I was trapped in my truck while it was on fire. I only suffered very minor injuries.

- Ortonville, MI, USA