2019 GMC Terrain Driver assistance Problems

Vehicle struggles to shift from low gears; seems to completely miss 3rd gear. Codes from maintenance indicate TCC slip

NHTSA ID

11688959

Incident

Sep 15, 2025

Friday July 25, 2025 I was driving my 2019 GMC Terrain SLE and when exiting the interstate the brake pedal got hard and I could not stop. After almost rear ending another vehicle, I got the vehicle into the ditch and safely off the road. After several attempts to correct the problem, I was unsuccessful. The vehicle was towed home and seen by a mechanic. The vacuum pump went out while I was driving.

NHTSA ID

11676573

Incident

Jul 25, 2025

The contact owns a 2019 GMC Terrain. The contact stated while reversing the vehicle, the display screen failed to display an image and was instead displaying a blue screen. The backover prevention system warning light was illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 55,000.

NHTSA ID

11634605

Incident

Dec 20, 2024

Mileage

55,000 mi

The contact owns a 2019 GMC Terrain. The contact stated that while reversing, the rearview camera displayed a blank image. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 80,000.

NHTSA ID

11633432

Incident

Dec 31, 2024

Mileage

80,000 mi

The contact owns a 2019 GMC Terrain. The contact stated that while in reverse(R), the back-up camera failed to operate as needed with the display screen displaying a blue image. The "Service Rear Vision System" message was displayed on the instrument panel. Neither the dealer nor the manufacturer was notified about the failure. Upon further investigation, the contact related the failure to Technical Service Bulletin: 19-NA-076. The vehicle was not repaired. The failure mileage was approximately 88,000.

NHTSA ID

11630357

Incident

Dec 9, 2024

Mileage

88,000 mi

The contact owns a 2019 GMC Terrain. The contact stated that occasionally while the vehicle was shifted into reverse, the back-up camera failed to display an image behind the vehicle as intended. The contact stated that the display screen turned blue. The local dealer was contacted, but the vehicle was not diagnosed or repaired. Upon further investigation, the contact related the failure to Technical Service Bulletin: 19-NA-076. The manufacturer was not made aware of the failure. The failure mileage was approximately 50,000.

NHTSA ID

11629176

Incident

Feb 15, 2023

Mileage

50,000 mi

Break booster pressure sensor and engine underbooster causes the car to slam on breaks or not break at all.

NHTSA ID

11609485

Incident

May 15, 2024

Brakes got hard all of a sudden locked up, almost hit another car, front collision warning keeps going off and automatically hitting brakes with no one in front of me. I’ve read it could vacuum brake pump failure. Please recall this as many people have kids and could hurt them.

NHTSA ID

11572976

Incident

Feb 16, 2024

The contact owns a 2019 GMC Terrain. The contact stated while driving approximately 40 MPH, the accelerator was depressed to overtake a vehicle; however, the vehicle hesitated, and RPM revved to 4,000 RPM. The vehicle then shifted into gear with a jerk, causing the vehicle to shake abnormally. The contact stated there was no warning light illuminated. The contact stated that the failure also occurred while accelerating from a stop. The contact had taken the vehicle to an independent mechanic who diagnosed the vehicle but was unable to retrieve a fault code. The vehicle had not been repaired. The contact stated that the failure was intermittent but persistent. The manufacturer had been informed of the failure. The failure mileage was approximately 60,000.

NHTSA ID

11544078

Incident

Jun 12, 2023

Mileage

60,000 mi

I’m crying out to you because I bought a 2019 GMC Terrain in April of this year with about 14,000 miles. The suv ran great for about 2 months and since then I’ve been dealing with nothing but a nightmare. We’re dealing with a situation where the suv goes into park while driving. We’ve brought the suv multiple times to GMC dealership and even reached out to GMC, and had no luck resolving the issue. Last night, while driving to a family event, the suv went into park while I was driving. This is the 4th time since we got the suv. I’m scared for my safely in this suv, if you could please assist

NHTSA ID

11495885

Incident

Nov 5, 2022

When I place the vehicle in reverse, my backup camera is not working, resulting in a blue screen with a message to have the camera serviced. Per the GMC dealership, this is a common problem with many of the newer GM vehicles and is a safety item due to not having a clear view of what is behind me. I purchased this safety feature and it not working.

NHTSA ID

11484199

Incident

Jul 11, 2022

The car failed to shift into gear. Message displayed, "transmission unable to shift" ,"2 gears selected " or "service transmission". Issued started in June 2022 while in drive thru line, when shifting from park to move the car would not shift. Had to turn car off for about 10 minutes and car was able to shift and drive normal. Check engine light came on about a week later and had checked for code p07b5. A couple of days later, light went back off. About 3 days later getting ready to leave home and car would not shift into gear again but turn car off and back on a couple of times and car shifted and drove normal. On July 13 2022 was driving in traffic and message displayed, unable to shift and service transmission. When I changed lanes and released the gas petal, the car went into park, stopped, and set the parking brakes, but did not turn off, jerking me forward and throwing things around in the car. Cars behind me had to slam on brakes to keep from hitting me because there was no initial brake light. I put on the flashers and turned the car off. Parking brake was stuck so I pressed it about 5 times before it finally released. I restarted the car 3 times and it finally shifted and drove as normal. I called gm to inquiry about a recall and was told there were none. I called for a diagnostic test and schedule is in about 2 weeks. The car has not been inspected by anyone listed above?⁸

NHTSA ID

11474103

Incident

Jul 13, 2022

The contact's wife owns a 2019 GMC Terrain. The contact stated that upon making a left turn, the steering wheel would forcefully jerk to right, thrusting the vehicle into the opposite direction. The contact stated that the service ESC and service brake assist warning lights were illuminated. The warning lights would disappear soon after the failure as well as upon restart. The contact had taken the vehicle to the dealer on multiple occasions where he was repeatedly informed that unless the service light was illuminated upon arrival to the dealer, they would be unable to service the vehicle. The vehicle remained in the possession of the dealer and was not repaired. The manufacturer had yet to be notified of the failure. The failure mileage was unknown.

NHTSA ID

11473648

Incident

Jun 1, 2022

The autoshutoff of the vehicle should be optional this vehicle goes on and off so many times and after it starts is acting up on braking and transmission deeler says no dtc all good but still doin it

NHTSA ID

11453140

Incident

Jan 13, 2022

The Back Up Camera System is not working properly. When Vehicle is put into reverse a blue screen appears. This can be dangerous as one could back up into someone or something. This is a 2019 vehicle and the NHTSA made them mandatory in May of 2018. This has been confirmed by a dealership. Many others have posted this online as an issue and GM has put out this service bulletin: https://static.nhtsa.gov/odi/tsbs/2019/MC-10160418-9999.pdf

NHTSA ID

11446015

Incident

Dec 4, 2021

9/30/20 DRIVING HOME AND WAS ACCELERATING TO PASS ANOTHER VEHICLE, THE TCS AND STABILITRAK LIGHTS CAME ON AND CHECK ENGINE LIGHT BEGAN TO FLASH. A BRIEF MESSAGE POPPED UP TO SERVICE THE TCS SYSTEM AND WENT AWAY. CHECK ENGINE LIGHT STOPPED FLASHING BUT TCS & STABILITRAK/TRACTION LIGHTS REMAINED ON. I STOPPED THE VEHICLE AS SOON AS I COULD, TURNED IT OFF, WAITING A FEW MINUTES AND RESTARTED - ALL LIGHTS HAD TURNED OFF. PROBLEM HAS NOT REPLICATED, BUT AM SCHEDULED FOR SERVICE (OIL CHANGE) AT DEALER TASCA BUICK GMC SAT OCT 3RD, WILL DISCUSS DURING SERVICE APPOINTMENT. (I COMMUTE DAILY ROUND TRIP 120 MILES) THIS IS EXTREMELY WORRISOME)

NHTSA ID

11361931

Incident

Sep 30, 2020

Mileage

18,800 mi

ON FEBRUARY 9TH, DRIVING HOME ON A ROUGH HIGHWAY, MY SERVICE ESC, ABS, TRACTION CONTROL AND CHECK ENGINE LIGHT (FLASHING) CAME ON. I IMMEDIATELY PULLED OVER, FREAKING OUT. SHUT MY CAR OFF CAUSE I HAD NO CLUE WHAT TO DO. SAT FOR A FEW MINUTES, COLLECTING MYSELF AND TURNED IT BACK ON. ALL LIGHTS WERE GONE, SO I DECIDED TO CONTINUE THE DRIVE HOME. TOOK MY CAR INTO THE DEALER THE FOLLOWING DAY, FOUND CODE P0300 STORED IN HISTORY. THEY DID AN UPDATE, AND HOPED THAT WOULD SOLVE MY ISSUE. ALAS, IT DID NOT. THIS SAME ISSUE HAS HAPPENED AT LEAST 6 TIMES NOW. THE 5TH TIME, AGAIN, ON A SMOOTH HIGHWAY, I COMPLETELY BROKE DOWN AND HAD TO BE TOWED! IT HAS NOW BEEN SITTING AT THE DEALER FOR TWO WEEKS (SINCE JULY 31ST) WHILE THEY TRY AND DIAGNOSE THE ISSUE.

NHTSA ID

11349201

Incident

Feb 9, 2020

Mileage

25,300 mi

TWO INCIDENT WARNINGS ON MY DASHBOARD SAYING OF MY BACK HATCH WAS OPEN WHEN IT WAS NOT. HAD IT SERVICED BECAUSE THE DASH WARNING WOULD NOT SHUT OFF. SERVICE SAID IT WAS FIXED THEN HAPPENED AGAIN. TWICE THIS HAPPENED INTERMITTENTLY. ANOTHER INCIDENT WHEN ON NAVIGATION SCREEN, WHEN THE NAVIGATOR GAVE DIRECTIONS IT CHANGED TO PHONE SCREEN AND WENT BACK TO NAVIGATION SCREEN WHEN SHE STOPPED TALKING, LIKE SHE WAS CALLING ME TO VERBALLY GIVE ME DIRECTIONS! THE MOST WORRISOME WAS AS I WAS GOING 50 MPH ON CITY STREET, MY GAS PEDDLE STOPPED ENGAGING WITH THE ENGINE AND I WAS LOOSING SPEED, AS I PRESSED ON THE GAS PEDDLE HARDER THE CAR WAS DECREASING IN SPEED AS I WATCHED THE SPEEDOMETER. DURING THAT INCIDENT ALL WAS WORKING INCLUDING BRAKES, RADIO AND STEERING. I PROCEEDED TO DRIFT INTO A DRIVEWAY TO STOP THE CAR FOR HELP, GOOD THING I WAS NOT ON THE FREEWAY COULD HAVE GOTTEN KILLED. THE CAR IS GETTING SERVICED NOW, I DO NOT WANT IT BACK, WILL TRADE IN FOR DIFFERENT MAKE/MODEL IS THIS CONSIDERED A LEMON AND WHICH LAWS/ACTION DO I TAKE? I'VE ONLY HAD THE CAR ONLY 7 MONTHS WHEN THIS STARTED TO HAPPEN.

NHTSA ID

11348999

Incident

Aug 6, 2020

Mileage

13,000 mi

ON AUGUST 23, 2019, MY VEHICLE INCURRED AN ENGINE AND TRANSMISSION FAILURE REPORTED BY GMC ONSTAR APPLICATION. THE SYMPTOMS OF FAILURE ARE REPEATED ACCELERATION SPEED CONTROL CAUSING SPEED LIMIT VIOLATIONS, INTERFERENCE WITH OTHER MOVING TRAFFIC, SPOUSAL TRAUMA, AND ILLUMINATION OF MULTIPLE DISPLAY WINDOW LIGHTS IN THE DASHBOARD BEHIND STEERING WHEEL. ON OCTOBER 14, 2019, THERE WAS A REOCCURRENCE OF THE SAME ISSUE. IN FACT, THIS REPORT IS TO GET AHEAD OF THE PROBLEM BEFORE TAKING VEHICLE FOR SERVICE THIS MORNING, OCTOBER 15, 2019, AT SEWELL BUICK GMC. I HAVE SERVICE DOCUMENTATION AND ONSTAR EMAIL MESSAGES OF FAILURE FOR EVIDENCE OF THIS REPORT.

NHTSA ID

11268428

Incident

Oct 14, 2019

Mileage

4,697 mi

TL* THE CONTACT OWNS A 2019 GMC TERRAIN. WHILE REVERSING AT 3 MPH, THE VEHICLE CRASHED INTO A TELEPHONE POLE DUE TO THE BACK UP CAMERA BEING INOPERABLE. THE CONTACT STATED THAT THE CAMERA DID NOT DETECT THE OBJECT THAT WAS LOCATED ON THE REAR PASSENGER SIDE OF THE VEHICLE. THE VEHICLE SUSTAINED DAMAGE TO THE LIFTGATE AND THE REAR WINDOW WAS SHATTERED. THE AIR BAGS DID NOT DEPLOY. A POLICE REPORT WAS FILED. THERE WERE NO INJURIES. THE VEHICLE WAS NOT TAKEN TO A DEALER OR INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING OR REPAIRS. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 7,681.

NHTSA ID

11267945

Incident

Oct 9, 2019

Mileage

7,681 mi

TL* 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.

NHTSA ID

11245016

Incident

May 2, 2019

Mileage

17,000 mi

ON JULY 4TH, 2019 AT 11:15 AM, THIS VEHICLE (LANE ASSIST AND ADAPTIVE CRUISE CONTROL OPERATING) APPLIED ITS BRAKES SOMEWHAT AGGRESSIVELY WITHOUT REASON. THIS WAS ON A HIGHWAY. I HAVE BLACKVUE CAMERAS THAT RECORDED THE EVENT. 12:15:09 74 MPH 12:15:10 73 MPH 12:15:11 67 MPH 12:15:12 60 MPH 12:15:13 56 MPH I TAPPED THE BRAKES TO SHUT DOWN THE ADAPTIVE CRUISE CONTROL. 12:15:14 56 MPH 12:15:15 55 MPH

NHTSA ID

11229712

Incident

Jul 4, 2019

Mileage

1,400 mi

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). *TR

NHTSA ID

11219404

Incident

May 31, 2019

Mileage

11,000 mi

WHILE DRIVING, THE ENTIRE GPS NAVIGATION SHUTS OFF AND GIVES AN SD CARD ERROR MESSAGE. NOTHING ON THE INFOTAINMENT SCREEN IS ON OR FUNCTIONING, INCLUDING SENSORS.

NHTSA ID

11203405

Incident

Apr 12, 2019

Mileage

1,000 mi

STOP AND GO TRAFFIC ON I-75. THE VEHICLE JUMPED FORWARD. DRIVER TRYING TO PUSH THE BRAKE PEDAL BUT IT WAS NOT WORKING, AUTO SENSORING HAD TAKEN OVER THE VEHICLE AND CAUSED THE VEHICLE TO REARENDED THE VEHICLE AHEAD OF IT PUSHING THAT VEHICLE INTO THE VEHICLE AHEAD OF THAT ONE.

NHTSA ID

11193889

Incident

Apr 2, 2019