Transmission Failure Problems of GMC Terrain

I was driving back home from the store Friday night and my wheels start squeaking and increasingly became hard to then the wheel whenever I turned. When I got home tried to park the wheels locked up and I couldn't turn the wheels anymore. Diver the car again Monday it was fine until I was my way home again the wheels locked up, car wouldn't accelerate part 2nd gear, then I wasn't able to reverse and my engineer light came on. I just bought the car 5 months ago from a dealership. No I don't have a warranty and there is 86927 miles on it. No accidents whatsoever. I recently found out that this vehicle is known to have transmission failure.

See all problems of the 2011 GMC Terrain 🔎.

Transmission fails to down shift after accelerating in traffic. Rpm legal 2200 rpm at 40 mph for over a mile before dropping to correct 1200 rpm for that speed.

See all problems of the 2018 GMC Terrain 🔎.

Excessive engine oil consumption. Timing chain failure. Pistons, rings, exhaust manifold, muffler, door regulator, wiper motor, transmission failure. Vehicle cannot be driven.

See all problems of the 2012 GMC Terrain 🔎.

The contact owns a 2010 GMC Terrain. While driving approximately 60 mph, the �overheated transmission� message displayed on the message center and the vehicle started to decelerate. The contact stated that the accelerator pedal was depressed, but the vehicle still failed to accelerate. The vehicle was towed to an independent mechanic where it was diagnosed that the transmission failed. The vehicle was not repaired. The dealer was not contacted. The manufacturer was notified of the failure. The approximate failure mileage was 90,000.

See all problems of the 2010 GMC Terrain 🔎.

Transmission failed. Shop said it was a broken wave plate. This problem has been recalled on other GMC models but not on mine. The problem is a safety hazard because it causes the wheels to be disconnected from the engine resulting in loss of control. I think GMC neglected to recall all models affected by this defect. My warrantee expired by date but not millage since my vehicle has less than 48,000 miles. GMC has been advised of this failure and declined to reimburse my cost.

I am adding on additional information to my previous complaint #10938600. GMC sca #14159, 14232, 15810, 12313, and my transmission failure all seem to fall victim to excessive heat. I was pulling into traffic when the transmission failed. My Terrain has fallen victim to three possibly four of the five calamities. There is no reason to believe all five will not fail under the same driving conditions. Somehow not once did warning lights come on for multiple engine oil occurances, nor for my transmission failure. I was an hvac chiller technician for 28 years. When I hear ecm referenced, as in sca#12312, I have to ask which values were changed and why. Thermistors and pressure switches designed to protect vital engine compartment components run through the ecm yet no warning. My transmission failed on December 4, 2016, the catalytic converter may be bad, the steering gear is suspect, and the engine warning lights have not done what they are supposed to do. The unnecessarily long delay in addressing the oil consumption issue outlined in sca#14159 probably compromised my engine in other ways. Sca#12313 resulted from gm delaying the repair of sca#14159 for so long. What, why, and how. We know what is failing. Simply replacing the part in kind or similar is not addressing why. How do we keep it from happening again is definitely not being addressed. Safety as well as quality issues are at hand here. Gm has ignored my requests for all information regarding sca#14159, 14232, 15810, 12313, and 12312, as well as the transmission. Why they are failing is excessive heat. That is just my guess. They know what it is. I can not afford a costly transmission bill that only finds me back in an unreliable vehicle with some serious safety issues.

GMC Terrain have a recall 2010-2014 on a high pressure fuel pump that is faulty and the ecm unit is not accurate that cause the transmission to fail.

While stopped at a traffic light, the transmission failed and the vehicle switched itself into reverse, propelling the vehicle backwards almost striking the vehicle behind me. The entire transmission required replacement and since it was 52 miles over the warranty period, GMC would not warranty it. The issue that I am asking you to investigate, is gm's response to me when I explained the transmission failure and the car putting itself in the reverse mode. I had been speaking with one of the executive customer service reps who works directly for the ceo of gm, wendy and I was abruptly told this transmission failure and throwing itself into reverse is not considered a problem or issue with gm. I feel that it is a serious problem and concern when the passengers safety is an issue. I cannot believe their attitude and non-action or even concern over this matter as this could have been a tragic occurrence, particularly if it could have been prevented by the manufacturer, gm. I am prepared to take this situation to any level and agency that I need to and I purposely kept the old parts of the transmission that failed. We have a potentially deadly situation here and I am unable to convince any one within gm of the seriousness of this situation. Therefore, I am asking for your assistance as I am convinced that a thorough federal investigation is appropriate and I am also convinced that gm is "sweeping" this issue under the carpet and withholding the truth from the consumer. Anything I can do, please email me or call me any time. Thanks for your concern and action. Major joel marcus, usaf 352-484-8853.