Table 1 shows two common power train related problems of the 2007 GMC Sierra 3500.
| Problem Category | Number of Problems |
|---|---|
| Automatic Transmission problems | |
| Transmission Fluid Leaking problems |
The contact owns a 2007 GMC Sierra 3500. While driving 45 mph the brake light warning and the abs lights illuminated on the instrumental panel. The headlights began to flicker; however, after shutting the engine off and checking under the hood the contact was unable to diagnose the failure. When he restarted the vehicle the brake light shut off and without warning, the transmission began to shift up and down at will. The dealer stated that the computer did not register any failure codes. The dealer also stated that if the failure recurred to allow them to diagnose the failure before shutting the engine off. The VIN was not available. The failure mileage was 12990 and the current mileage was 13050.
Transmission cooler line leak could leak out all fluid and cause transmission failure. The consumer was informed the vehicle needed transmission cooler lines, transmission fluid and conditioner at a cost of $ 822. 32. The service manager agreed to cut the bill to $411. 16. The consumer contacted gm customer service to make a complaint. After an investigation, the consumer was informed by gm that the dealer stated the failure was caused by the age of the vehicle and gm would not cover the cost of the part. The consumer stated the part was made of defective materials and should have been recalled. When the consumer contacted the dealer, they stated they had not made a diagnosis of the failure and the parts were sent to gm to be examined. Updated ivoq 01/04/12.