One problem related to automatic transmission has been reported for the 2009 GMC Sierra 3500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 GMC Sierra 3500 based on all problems reported for the 2009 Sierra 3500.
The contact owns a 2008 GMC Sierra 3500. The contact stated that while getting a service inspection at the dealer, they found that there was a transmission line leak. The dealer advised him that the line needed to be replaced and that it was not covered under warranty. The vehicle was repaired. The manufacturer was also contacted and advised him to contact NHTSA and file a complaint. The failure mileage was approximately 62,000.
| Automatic Transmission problems | |
| Automatic Transmission Control Module problems |