The contact owns a 2007 Chevrolet Tahoe. The contact stated while driving at various speeds her V-8 engine should switch to a V-4 whenever she increased her speed to save on gasoline. The vehicle was inspected by a dealer who advised her that the vehicle was stuck in V-8 and caused the vehicle to misfire. The 8 lifters, manifold, and all of the gaskets surrounding them were repaired. The failure mileage was approximately 130,000.

- Athens, GA, USA

2007 Chevy Tahoe using 2.5 qts oil every 1500 miles. 5.3L V-8. oil consumption test done. On to the dealer for the next step.

- Puyallup, WA, USA

The contact owns a 2007 Chevrolet Tahoe. The vehicle had not been driven for 10 hours when a fire started under the hood and caused the front tire to explode. The entire front of the vehicle melted on the ground. The vehicle was approximately a foot from the house and as high as the two story house. After hearing the explosion, the contacts husband used a garden hose to keep the flames away from the house. An additional vehicle that belongs to the contact was damaged by the fire. There was also property damage to the siding and bricks on the house. The fire department extinguished the fire, filed a report, and stated that the cause was an electrical short. The insurance company towed the vehicle to General Motors to conduct an investigation. There were no injuries. The failure and current mileages were 9000.update 09/10/08 updated 09/17/08.

- Elkhart Lake, WI, USA

The contact owns a 2007 Chevrolet Tahoe. The contact stated that he noticed smoke coming from underneath the hood of the vehicle approximately an hour after he parked. The fire department stated that the cause of the fire could have been electrical. In addition, they disconnected the battery. As of February 27, 2008, the dealer had not inspected the vehicle. There is a defect investigation open for the engine and engine cooling: Engine (NHTSA action number PE08010). The current and failure mileages were 13,000.

- Powell, OH, USA

After only one month of purchase auto start feature does not work unless you were 3 feet away. The vehicle once sat over night would make a really loud clattering sound when you would turn on the engine. I took the car into the dealer and told them about the problems the dealer indicated that they had to reprogram the software in the Tahoe to reprogram auto start. The next morning I was called and informed that they were unable to reproduce the clattering sound and that nothing wrong was detected with the vehicle so that it was ready for pick up. Everything was O.K. for about a couple of months. Auto start wasn't working again. At my third service visit to the dealer I noticed the tires were starting to get wasted towards the inside. The vehicle only had about 5,000 miles on it at the time. When the dealer was informed he indicated that the tires needed to be rotated. After about three tire rotations I noticed the tires getting warn out pretty badly on the inside. He indicated that the problem could be that it needs a front end allingnment only after the vehicle having less than 12,000 miles. The front end alignment was done on the vehicle.to this day that the tires are wasted more on the insides than the outsides.this last month we have had a problem again with the loud clattering sound in the engine when we start the vehicle.it has gotten alot worse I took it into the dealer and they said that they were aware of the problem and that it appears to be oil build up in the air compressor that when it sits for more thatn 3 hours it apparently makes this loud sound when you start the engine. He indicated that Chevy is looking into the problem and to this day has not done anything about the problem.I was furious when they refused to do anything about a problem that Chevy well knows is a manufacturer defect.

- Buckeye, AZ, USA