2014 GMC Sierra 1500 Transmission & Powertrain Problems
NHTSA lists 80 Transmission & Powertrain complaints for the 2014 GMC Sierra 1500, 9% of all 854 complaints filed for the year. Median mileage at failure was 66,246 miles, and two related recalls (14V374000 and 14V152000) cover transfer case software and transmission oil cooler line issues.
- Transmission & Powertrain complaints
- 80
- 9% of 854
- Crashes reported
- 3
- Fires reported
- 0
- Injuries reported
- 0
- Median mileage
- 66,246 mi
- Related recalls
- 2
Typical transmission symptoms owners report
- Vehicles roll away or roll backward after being parked and shifted into what appears to be Park, sometimes right off the lot or on an incline.
- Transmission unexpectedly kicks into neutral or slips at highway speeds, causing sudden loss of power and near-collisions.
- Owners describe a hesitation or delay when accelerating from a stop, which they say GM documentation described as an intended, programmed condition.
- Excessive vibration occurs at highway speeds, with owners stating the manufacturer acknowledged the issue but offered no fix.
- Transmission jerks, sputters, or fails to shift into a passing gear, in one case combined with brake failure while driving near water.
When 2014 GMC Sierra 1500 transmission complaints were filed
First complaint Jan 11, 2014, latest Aug 19, 2026.
Transmission & Powertrain recalls for the 2014 GMC Sierra 1500
- NHTSA 14V374000Jun 27, 2014Transmission & Powertrain392,459 vehicles
Power train:transfer case (4-wheel drive)
General Motors LLC (GM) is recalling certain model year 2014-2015 Chevrolet Silverado and GMC Sierra vehicles, and model year 2015 GMC Yukon and Chevrolet Suburban and Tahoe vehicles. In the affected vehicles, an electrical signal short may cause the transfer case to shift to neutral without the driver's input.
Risk: If the transfer case switches to neutral while the vehicle is parked and the parking brake is not in use, the vehicle may roll away increasing the risk of injury to bystanders. If the transfer case switches to neutral while the vehicle is being driven, the vehicle would lose drive power, increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will re-program the software in the transfer case control module, free of charge. The recall began in early August 2014. Owners may contact General Motors customer service at 1-800-222-1020 (Chevrolet), or 1-800-462-8782 (GMC). GM's number for this recall is 14192.
- NHTSA 14V152000Mar 31, 2014Transmission & Powertrain489,936 vehicles
Power train:automatic transmission:cooling unit and lines
General Motors LLC (GM ) is recalling certain model year 2014 Chevrolet Silverado Light Duty Regular Cab, Double Cab, and Crew Cab 1500 series and model year 2015 Suburban and Tahoe; GMC model year 2014 Sierra Regular Cab, Double Cab, and Crew Cab 1500 Series and model year 2015 Yukon and Yukon XL vehicles equipped with a 6-Speed Automatic Transmission (feature code MYC). The subject vehicles may have a transmission oil cooler line that is not securely seated in the fitting.
Risk: If the line is not securely seated and transmission oil leaks from the fitting, the oil could contact a hot surface and cause a vehicle fire.
Remedy: GM will notify owners, and dealers will inspect the transmission oil cooler line connection and repair the vehicles, as needed, free of charge. The recall began on May 19, 2014. Owners may contact Chevrolet at 1-866-694-6546 or GMC owners may contact GMC at 1-866-996-9463. GM's number for this recall is 14121.
Transmission & Powertrain complaints by Sierra 1500 model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- How many transmission and powertrain complaints does the 2014 GMC Sierra 1500 have?
- NHTSA lists 80 Transmission & Powertrain complaints for the 2014 Sierra 1500, which is 9% of the 854 total complaints filed for that model year.
- Is there a transmission-related recall for the 2014 GMC Sierra 1500?
- Yes. Recall 14V374000 covers a transfer case control module software reprogram, and recall 14V152000 covers inspection and repair of the transmission oil cooler line connection.
- At what mileage do transmission problems typically show up on the 2014 Sierra 1500?
- The median mileage at failure among reported Transmission & Powertrain complaints is 66,246 miles.
- Did the transmission issues cause any crashes?
- NHTSA data links 3 crashes to Transmission & Powertrain complaints on the 2014 Sierra 1500, with no reported fires or injuries.
- Is the transmission complaint rate worse in 2014 than other Sierra 1500 years?
- The 9% share for 2014 is lower than several later years, including 2017 at 34% and 2018 at 41%, based on the same NHTSA complaint data.