This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.
So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.
*Service Transmission message and vehicle goes into neutral. *Vehicle loses power, almost got rear ended by an 18 wheeler when trying to pull over to the shoulder of the highway., LaFontaine of Ann Arbor, MI confirmed *Inspected by LaFontaine of Ann Arbor, MI - Cust states the service transmission message light is coming on and the vehicle goes into neutral and stalls, service ll wheel drive message coming on, traction light coming on, customer going about 74 mph and the speedo gauge dropping out, low fuel light coming on even though it has fuel. Per DMA and GM Executive the repairs will be covered 100 %, send DMA pre approval and PET. There is a broken or loose communication wire intermittently disconnecting and causing multiple modules to fault. Could not find broken wire. Request # 9-6483892482 replaced engine harness OP 4069760 ST Time. 8.3 hours Per PET, DMA Pre Auth., warning lamps, messages were on the dash
service transmission message coming on and the vehicle goes into neutral and stalls, service transmission light comes on while on highway and the vehicle goes into park and loses power and stalls, All wheel drive message coming on, traction light coming on, going about 74 mph on highway and speed gauge dropping, low fuel light coming on even thought it has 3/4 tank of gas. almost got ran into from behind twice when the vehicle went into neutral and into park by an 18 wheeler truck as I was trying to pull over onto the shoulder of the highway. *Confirmed by LaFontaine in Ann Arbor, MI *Vehicle has been inspected by LaFontaine in Ann Arbor, MI. Found bulletin 19-NA-181 which was very close to all symptoms and stated to check for chaffed wires near the ECM. Found no spots in the tape where it was rubbed through but lost comms when wires were shook. Unwrapped main engine harness loom and inspected wires, found nothing. Started TAC Case # 9-6385087421 and was told it probably is a chaffed comms wire somewhere and gave me multiple locations to check. Found no damaged wires in those locations and shaking main harness no longer would make it fault. Put it all together and drove it down the road and faulted immediately. Unwrapped main harness again snd sprayed with saltwater to help conductivity but still couldn't get it to fault while shaking the harness. Only way it will fault is when shifting into drive the drive train bumps just right to bend the right wire. Checked every wire I could find and can't find the problem wire. Not drivable. When this vehicle faults it will not shift past 1st gear and sometimes locks out reverse. Must be towed. Needs the main wiring harness to start, recommend customer to authorize FSE to dealership CUST declined., all the lights and messages were coming on over the dash.
*Check Engine Light on, Short to Voltage inside Hood Switch Setting P257F. Switch Must Be Replaced, Recall N192216311 Cust May be Able to Shift Out of Park OP 9104813 Reprogram ECM.3 WCC 11YN37748687 *Scared to drive vehicle when the hood switch was the problem. Did not want to driveon the road and the hood fly up and I would be unable to see out of the front windshield., vehicle inspected by LaFontaine in Ann Arbor, MI. *Vehicle was inspected by LaFontaine in Ann Arbor, MI. *Engine Light was on.
*Trans clutch drag recall *While driving, it would take a minute to shift gears and the vehicles behind me would ride up on the back of my car until it would shift into the next gear and pick up speed to do the speed limit. *Took the Terrain to aFontaine in Ann Arbor, MI and the service center reprogramed the Transmission Control Module and setup with SPS 0.7, the vehicle was inspected by LaFontaine dealership in Ann Arbor, MI warning messages, I could hear the transmission not shifting when it should be. The transmission problem starting happening in Sept 2019 and brought it into the dealership in Oct 2019.
When I shift it from reverse to drive on a very slight incline, the engine will rev and not accelerate after I initially start moving forward. It actually almost comes to a stop before finally accelerating. It has now started doing it while driving and stalled in the highway on 2/13. I carried it last year for the same issue, but they told me they couldn't duplicate it. Today, they told me the same thing. They can't explain why it stalled in the middle of the road. Even though the check engine light came on and on-star told me to carry it to a dealer. The service tech guy also told me that my vehicle had 67,000 miles on it. It has less than 30,000 (not sure on the exact number since it is still at the dealership.) it is no longer safe to drive, but since they cannot duplicate it, they aren't even going to investigate it further.
- Erin, TN, USA
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The contact owns a 2019 GMC Terrain. While driving, the transmission kept slipping between second and third gear and a grinding noise was heard. The vehicle was taken to peruzzi Buick GMC (156 Lincoln ave, fairless hills, pa 19030, (866) 526-8445) where the computer was reprogrammed. The contact stated that the vehicle was previously involved in a crash and the engine was replaced. The vehicle was taken back to the same dealer because the transmission continued to slip. The dealer replaced the 02 sensor, but the failure recurred. The contact stated that the transmission was previously repaired per an unknown recall. The manufacturer was not notified of the failure. The failure mileage was 10,000.
The contact owns a 2019 GMC Terrain. While driving approximately 40-70 mph, the vehicle lost power and independently decelerated. The vehicle was taken to shamaley Buick GMC (located at 955 crockett St, el paso, tx 79922, (915) 231-4000) where it was diagnosed that the transmission needed to be repaired and the power train control module needed to be updated. The vehicle was repaired; however, the failure recurred. The contact stated that the vehicle experienced the failure on four separate occasions. The manufacturer was notified of the failure and provided case number: 95389790118. The approximate failure mileage was 17,000. The VIN was invalid.
On or about May 22nd, I leased a new GMC Terrain from lambert GMC in cuyahoga falls, Ohio. On July 2 with less than 1900 miles on the vehicle, the transmission gave out enacting full emergency braking system in the middle of a 4 lane road creating a dangerous situation. The vehicle would not drive or engage in any gear. Vehicle was towed to ron marhofer in North canton Ohio. Finally after a week delay on 7/8 I received a call that the value case was damaged from manufacturing. As of this complaint, no resolve to the repair. I am requesting/demanding under good faith that GM purchase the vehicle back.
The vehicle was purchased on June 22, 2019, with 19 miles on the odometer and had 1102 miles on it when the incident occurred. On 19 July, 2019 my wife and I were driving on interstate 95 near the rocky mount exit when I pulled into the passing lane to go around slower traffic (approximately 70 mph). Upon pressing the accelerator the engine RPM increased, but the vehicle's speed did not. Almost immediately the vehicle experienced a violent surge (to the extent that I thought I had been rear-ended) and the vehicle accelerated. At this point, we were startled, and continued until exiting nc hwy 13 with no further incident other than the cruise control becoming inoperative after the initial incident. Upon arriving at the outskirts of greenville, nc we encountered a red light and had to stop. Upon pressing the accelerator, the engine RPM once again increased and another violent surge was experienced. At that point, we entered a gas station and called onstar for roadside assistance. The car was subsequently towed to a local dealership (brown & wood GMC) where the on-duty mechanic duplicated the unsafe condition. Dealership stated that they did not know what was wrong because the vehicle was so new, and they could not contact corporate until Monday (July 22). I returned to the dealership Saturday (Jul 20) to get a status and make arrangements for a loaner vehicle and was informed by the service advisor that the issue was with the vehicle was even worse than the day before - I did not inquire as to what that meant because it was pretty unsafe and scary to experience it the day before. I was notified yesterday by the dealership that the issue is a valve body, but that they did not know how long it would take to receive the part.
The contact owns a 2019 GMC Terrain. The contact stated that the vehicle would not shift into gear from the parked position. The vehicle was towed to brickell Buick & GMC (665 sw 8th St, miami, fl 33130, 786-504-1353), but the failure could not be duplicated. The failure recurred again two weeks ago and the service transmission and transmission unable to shift indicators illuminated on the instrument panel. The following day, the indicators illuminated again and the vehicle was taken to lehman Buick GMC (21200 nw 2nd ave, miami, fl 33169, (305) 356-7579). The dealer contacted the manufacturer and was authorized to replace the transmission. When the dealer test drove the vehicle, the transmission indicator illuminated again. The dealer was currently diagnosing the vehicle. The failure mileage was 10,000.
Just over 5200 miles started experiencing transmission slippage when stopping or starting. Around 5500 miles started hearing loud clicking roaring sound. Was returning home from vacation on a Saturday afternoon and knew all service areas of all GM dealerships would be closed but headed to a nearby Chevrolet dealership in bossier city, la to leave car to be looked at on Monday. Never made it. Car stalled and would not go into any gear. Had it towed to dealership. I left car and returned home to mckinney tx. Following Tuesday received text message from dealership that the planetary gear and some other parts went out. Parts on order but not available until following Friday. Searching internet found several reports of 2017, 2018, 2019 GMC Terrains having transmission issues. Seems GM has transmission issues with the Terrain transmission overheating, slipping, and failing.
I purchased a 2019 GMC Terrain VIN: [xxx] on Jan 17, 2019 at rizza Buick GMC 8415 w. 159th street, tinley park il, 60487, on January 17, 2019. This was my first brand new car and I was excited. I traded in a 2014 GMC Terrain in the process, knowing I would be upside down on the loan. I had the first service done on April 23, 2019 at said dealership. At that visit I explained that I was hearing a noise on the passenger side vent even when the HVAC was not running. I was told nothing was detected and my vehicle was fine on May 24, 2019, I drove my vehicle to memphis Tennessee with my family for memorial day. On May 25, 2019 the check engine light came on, I was losing power to the engine. That same night customer service towed my vehicle to sunrise Chevrolet Buick GMC, 1800 covington pike memphis, Tennessee 38128, a nearby GMC dealership and set up a rental car in the area for me to drive. Because it was the holiday, enterprise was closed, and I had no vehicle to drive for two days. This was an inconvenience to me and my family, I had to alter my trip plans that were made back in February 2019. On May 27, 2019 I was told by [xxx] the technician at sunrise Chevrolet that air box tube was loose and not properly installed and could have been done during my service I had done April 23rd. I was assured everything was okay and I was good to go. On May 31, while traveling back home the check engine light came on again. Same message on the dash and it was raining at 3am. I was close to home and was able to make it to the dealership that I purchased it from. My vehicle has been in service since May 31, 2019 and I am just finding out that I have a part that is on national back order. I am not satisfied with my experience an I am reaching out to you to resolve this matter. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).
I have a 2019 GMC terrian with 2500 miles. I was driving it and the car flashed low fuel, check transmission and check engine warning and shut down while I was as a highway speed. I was fortunately ok, however it stranded me at a spot with merging traffic, no shoulder and no power to get the vehicle out of there. The vehicle was able to start up shortly, then I had to deal with getting going again in this precarious spot.
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- Ottawa Lake, MI, USA