10.0

really awful
Crashes / Fires:
1 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
12,064 miles

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problem #24

Nov 272022

Terrain

  • miles
Temperature sensor for the engine went out...which now affects my remote start not to work

- New London, WI, USA

problem #23

Jun 132022

Terrain

  • miles
Radio, hands free calling, and light on mirror shorting out. None of them work. It-€™s like it has a short in the wiring.

- Henagar , AL, USA

problem #22

Apr 012022

Terrain

  • miles
1. 2018 Terrain would not start in a parking lot. Remote was used after several attempts to start with push button failed, and after a slight hesitation, engine started. Vehicle was driven about 6 miles without incident. 2. Vehicle was driven about 10 miles the next day and start/stop engaged at a stop light but would not restart. After about 3 minutes of cycling throught the starting procedure, the vehicle started. Drove another 8 miles without incident. 3. Next morning, drove about 3 miles to intersection where start/stop engaged but would not restart. After about 30 minutes of cycling through starting procedure and an attempt to jump start was made the vehicle restarted. At this point, the vehicle was taken to Romain GMC for service. A new battery was installed and other related operations.After about 10-15 miles, the vehicle would not start. Remote was attempted but it would not start. After about an hour, vehicle started and was driven back to Romain avoiding the stop/ start engagement.

- Evansville, IN, USA

problem #21

Oct 282021

Terrain

  • miles
Multiple warning lights are appearing at once (Automatic brake assist, forward collision assist, parking brake released) When the car is put in reverse, the radio turns off for a brief moment and the steering assist warning shows on the dash. The steering wheel snatches back in the opposite direction causing a safety concern. The car also completely cuts off after the auto-stop takes effect at red lights causing me to have to pump the brakes at least twice to re-ignite and be able to accelerate.

- Upper Marlboro, MD, USA

problem #20

May 312021

Terrain

  • miles
The "Service Brake Assist" issue in other 2018 GMC SUVs is happening in the 2018 GMC Terrain, but it is not part of the recall. Our brakes became EXTREMELY difficult to press right as we were turning onto the on ramp of an expressway. Thankfully we were smart enough to pull over and not get on the highway. Had we done so, I may not have been here to type this complaint. The brakes be come extremely difficult to press and that message shows. Dealership is going to charge me $400 to replace a vacuum pump - they were not interested in the information I have around this issue in other GMC SUVs since it isn't a formal recall on the Terrain. I could have died yesterday due to this braking issue. I've owned this car for 3 months.

- Redford, MI, USA

problem #19

Feb 232021

Terrain

  • 34,000 miles
When restarting after vehicle "auto stop" I am getting "service brake assist" and occasionally "service ESC" warnings. These warnings were associated with brake failure in GM SUV's and pickups and were subject to a recall. No such recall exists for the Terrain. I haven't yet experienced a brake failure but GM seems to want to wait until I do to fix the problem.

- Chillicothe, OH, USA

problem #18

Dec 312020

Terrain

  • 55,200 miles
The service stabilitrak light continues to come on. When it does, almost all of the lights on the dash light up and the car puts itself in neutral and shuts off. This has happened 5 times in the past two weeks. Twice with my [xxx] in the car. Parts of this document have been redacted to protect personally identifiable information pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6). The car was purchased 12/23/2020 and it first shut off with the service stabilitrak warning 12/31/2020. I've taken it to the dealership for repair. They replaced the front right wheel sensor today and immediately after leaving their lot, it shut off twice. I did a search on the VIN and found that this vehicle had issues at 11K miles and 27K miles. Now again at 55K miles. The car just shuts itself off while driving. First time it happened, I was rounding a corner in high traffic and in mid turn, the car shut off. I was almost hit by several cars. This vehicle is dangerous. It happened once while on the highway with my 15 month old in the car and today it happened twice with her in the car.

- Decatur, GA, USA

problem #17

May 012020

Terrain

  • 52,000 miles
Car shuts off completely at a stop and no power at all untill it is jump started.

- Brownsville, TX, USA

problem #16

Sep 012020

Terrain

  • 39,600 miles
My 2018 GMC Terrain has major issues that almost caused me to hit a wall on the expressway due to a brake assist issue that other owners have a issue with and GMC has done nothing to help the buyers, where can we the buyers get help with issues GMC is well aware of??

- Park Forest, IL, USA

problem #15

Jul 062019

Terrain

  • 15,615 miles
Radio plays random radio stations and will not allow radio to be turned off when vehicle is turned off ( no power to the vehicle, doors are opened and the fob is over 500 ft away). Radio screen flashes to a blank screen. Does not read contact information for cellphone connected to vehicle. Will not allow phone calls to be made and will continue to play music through radio and car speakers while phone is engaged in a telephone call ( once call is able to be placed). Android auto feature stopped working. Vehicle will slip out of gear and randomly put self into an overdrive. Vehicle will not accelerate despite gas petal being almost to the floor and then will jump rapidly and accelerate quickly. Vehicle smells like rubber is burning under the hood at various times.

- Jacksonville, NC, USA

problem #14

Oct 012019

Terrain

  • miles
Recall on the engine block heater. The dealership is unable to get the part to replace. I took in over 6 months ago and still have nothing.

- Farmington, CT, USA

problem #13

Oct 172019

Terrain

  • miles
My car just completely shut down out of nowhere. It has happened twice when I was slowing for traffic and when I was in a parking lot. The first time I couldn't get out of the car because the door wouldn't unlock. Then the power came on but the car would not turn over. It has push button gear shifts and would not go into neutral. I had to call the police to assist until the car was towed because I was on a very busy and dangerous street. I honestly was scared someone was going to slam into me. The second time I was looking for a parking spot and it stopped. Luckily I always keep the doors unlocked since first incident had to be towed both times. As of today it is still at the dealer trying to be fixed for a second time. They 'thought' they fixed it the first time but it happened again. The dealer has had my car since October 17. They claim they know what it is. They replace some engine module and are now waiting on a push button for the gear shift.

- Carmel, IN, USA

problem #12

Jul 122019

Terrain

  • 27,000 miles
Screen went black and warning chimes and seat vibration did not go off when backing up. Had to file a claim with insurance to fix my dented bumper. I also experience issues with the audio buttons on the steering wheel. I am not able to change the song in I am on apple play and there is always a delay when changing radio stations.

- Webster, TX, USA

problem #11

Sep 092019

Terrain

  • 30,000 miles
The screen on the dash which includes the radio and back up camera goes white at random times and does not work. I have had the radio/screen replaced and it still does it. I have had many updates with the screen.

- Yulee, FL, USA

problem #10

Aug 202018

Terrain

  • 10 miles
Wiring harness not weather sealed N shorted out after dealer washed car on delivery

- Powell, OH, USA

problem #9

Jan 202019

Terrain

  • 2,500 miles
Rear door electric locking system does not work. Also could not entrr car after car wash as all other doors were inoperable.

- Powell, OH, USA

problem #8

Feb 262019

Terrain

  • miles
I have around 6 to 7 month with the vehicle and since day one it made a weard noise in the engine transmission area and the vehicle doesnt respond and perform well I took it to the dealership and at first they stated it was something with the transmission and then they started giving me manydiferent excuses and that it was normal but still the SUV wouldnt respond I called GM and they opened a ticket but after that they said they could not do anything about it in other words they told me I had to deal with the issue. Yesturday Feb 26,2019 the SUV started having worst problems as to where it would not run mor then 33 miles a hour it started shaking rpms going wild the vehicle only has 5500 miles on it. I dont know what to do out of this time I have with it the vehicle has been more timed at the dealership than with

- Laredo, TX, USA

problem #7

Jan 272019

Terrain

  • 22,000 miles
The navigation/media center will either go completely black or completely white screen even when backing up you lose the camera and can't shut off the radio. If the screen goes white during evening driving the reflection of the windshield is so severe I can't drive and the system will not shut off when the power button is depressed. I have taken it to dealership, they replaced the radio once. It is doing it again less than a month later. GMC said they know about this issue with the vehicle but do not know why or have a fix. In the mean time I am to drive my vehicle since they do not see this as a safety concern. I have attached a photo from yesterday I was in the process of backing up when the whole screen went black. I was backing out of my driveway onto a city street. When we got to our destination and shut the car off the radio stayed on even once we exited the vehicle and shut and locked the doors. I am worried about the potential of a fire hazard as well.

- Fort Mitchell, AL, USA

problem #6

Jul 012018

Terrain

  • 4,000 miles
The contact owns a 2018 GMC Terrain. The contact stated that the vehicle's electrical system failed. The vents located near the instrument panel emitted a strong burning odor when the heating system or air conditioning system was activated. In addition, the front end of the vehicle exhibited a strong vibration that caused the steering wheel to vibrate. Furthermore, when the rear hatch door was closed, the rear hatch door light remained illuminated. The contact stated that the rear driver's side hub clips separated. On star performed a diagnostic and provided the contact with diagnostic case number: 109309958. The vehicle was taken to rainbow northshore Buick GMC (2925 North highway 190, covington, la 70433, (888) 494-1484) for inspection. The dealer only cleared the on start connectivity codes and informed the contact that there was a defective module. The manufacturer did not have a remedy for the failure. The vehicle was not repaired. The manufacturer was contacted. The approximate failure mileage was 4,000.

- Mandeville, LA, USA

problem #5

May 112018

Terrain

  • 2,040 miles
Vehicle was in service for 9 days for- (as identified on the information system) transmission, stabilitrak, parking assist and a message "the vehicle was unsafe to drive". on Friday, May 12, 2018 I picked up vehicle from jim causley after repair and replacement as indicated on the service report. I drove no more that 15 miles and the vehicle jerked, stalled, made loud noises and smelled of something burning. The vehicle went from 35mph to 5mph. The vehicle would not accelerate beyond 10-15mph. I had to have the vehicle towed to my residence. On Tuesday, May 15, 2018 I had it towed to jim causley. This is a continuation of the first complaint #11091743.

- Detroit, MI, USA

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