2015 GMC Terrain Problems

The contact owns a 2015 GMC Terrain. The contact stated while starting the vehicle, the air bag warning light illuminated intermittently. The contact took the vehicle to the local dealer and was informed that diagnostic tests on air bag failures were not performed at their location. The contact stated that she received notification of NHTSA Campaign Numbers: 22V165000 (Visibility) and 22V137000 (Exterior Lighting) however, the dealer declined to service the vehicle. The vehicle was not repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 125,000.

I was driving home in the dark at an average speed of 45 mph, and it was raining and all of a sudden, my wipers stopped.

I am submitting this complaint regarding the engine timing chain failure in my 2015 GMC Terrain because I believe it presents a serious safety hazard. Before the failure, the vehicle began experiencing intermittent symptoms, including engine jerking, shaking, rough operation, abnormal engine noises, and an intermittent check engine light. While driving on the highway, the engine timing chain failed, causing the vehicle to suddenly lose power. I was traveling at highway speed and had to safely maneuver the vehicle out of traffic. The unexpected loss of power placed me and other motorists at risk of a collision because I could no longer safely maintain the flow of traffic. The vehicle was towed to an independent repair facility, where the engine was diagnosed with a timing chain failure. I was informed that the engine had sustained significant damage and required replacement. After purchasing and installing a replacement engine, that engine also began exhibiting timing chain-related symptoms immediately after installation, including abnormal rattling noises and unstable engine operation, resulting in additional repairs and the vehicle remaining unsafe to drive. I am concerned that timing chain failures in this model can occur without sufficient warning and can cause a sudden loss of engine power while the vehicle is being driven. A sudden engine failure at highway speeds creates a significant risk of a crash, injury, or death. I am requesting that this issue be investigated to determine whether it represents a safety-related defect affecting other 2015 GMC Terrain vehicles.

See attached document for complaint.

My vehicle began jerking, shaking and kept shutting off in a highway intersection. I looked on the ground after coasting into a gas station to find oil leaking from under my vehicle. I've never had an oil leak and it caused my starter to go and I've had to replace the camshaft sensors all within the same week. It appears the rear seal went after the cold streak we had. I need my vehicle to take my mother to treatments, etc. Is there any recalls on this?

I am writing to urgently request a safety recall for the GMC Terrain 2015 due to a critical issue with the lift gate mechanism, which may be both electrical and mechanical. Recently, while utilizing the lift gate for routine activities such as grocery shopping, a terrifying incident occurred that endangered the safety of my family members. Upon opening, the lift gate exhibited a concerning behavior, forcefully closing without warning or control, posing a severe risk of injury. Despite attempts to intervene, the gate continued its downward motion unabated, presenting a serious hazard of crushing limbs or causing incapacitating harm. In a frightening moment, one of my family members narrowly avoided a potentially catastrophic injury as the gate threatened to strike her right hand. While I sustained a minor injury to my arm, a superficial wound, the gravity of the situation cannot be understated. This dangerous malfunction persists, rendering the trunk unusable out of fear for the safety of myself and my loved ones. Given the potential for life-altering injuries, I implore you to take immediate action and initiate a recall for all GMC Terrain 2015 models affected by this defect. The safety of consumers should be the utmost priority, and failure to address this issue promptly could result in devastating consequences. I urge you to prioritize this matter and take decisive steps to remedy the situation before further harm occurs. Your swift action in initiating a recall will not only safeguard the well-being of countless individuals but also uphold the reputation of your brand for prioritizing customer safety.

The blower fan for heat In my vehicle was replaced in October 2022, recently the Defroster will not engage and it is vital to winter driving. The mechanism that switches between which vent to blow out air was replaced and the Defroster will still not engage, rather it comes out of the heat and face vents. Shortly after the Defroster stopped engaging, the rpms will start fluctuating from 2 suddenly up to 6-8 without warning or acceleration then go back down and back up as if it's chugging along. Even when applying the brakes, this will continue to happen and there's concern for Rear-ending or crashing when this happens. When driving home 2 nights ago the county police pulled my vehicle over due to burnt out headlight, which was replaced less than 6 months ago. Took the car in to get bulb replaced today and multiple bulbs later, the light is not fixed and it was said to be electrical and need to go to another shop. Beginning to wonder if this is all a bigger problem about to happen with engine/ powertrain.. with commute to work in the dark and electrical problem in the headlight randomly and the acceleration issues there is definitely a concern for safety.

My vehicle had 2 recalls and I took it to the local Chevy dealer where I had purchased the car in 2018. The windshield wiper problem was repaired but I was told they did not have the correct parts to repair the headlights. After 3 days I was told the car was ready and I was assured by the service manager that the car was done. However, the headlights were not repaired..

There have been problems with the 2015 GMC Terrains Timing chain. The timing chain will break when the vehicle is being operated which causes the driver to lose complete control of the SUV, additionally, the engine will be destroyed. The bigger issue is the loss of control when you are driving - especially at highway speeds. GMC had hundreds of complaints but refused to issue a recall. A recall was issued but for only certain batches of VINs. I contacted GMC corporate service to inquire about what they are doing for the other owners who are experiencing the symptoms before the chain breaks. The representative told me they were only recalling certain VINS, I explained that it was not a fluke that my car was experiencing the same issues as the recalled ones. The response was they weren't recalling my VIN. I inquired why there were only some, not all, and she said it depends on what time of day the car was assembled the weather, and the place. Just bizarre this answer, my vehicle is the exact vehicle model that is being recalled and is experiencing the same problem - it makes no sense. So if I am driving on the highway or any road USA and my chain breaks I may kill myself as well as others. Then there is the cost to repair this defective part, by recalling certain VINs they are acknowledging there is a defect that they are responsible for. I want my vehicle repaired at the expense of GMC as they are the cause of the issue. I don't want to die or kill anyone. Can you please help me and many other owners who are dismayed and just confused and angry? My car is now stalling out while I am driving, or moving at all.

The blower fan for heat In my vehicle was replaced in October 2022, recently the Defroster will not engage and it is vital to winter driving. The mechanism that switches between which vent to blow out air was replaced and the Defroster will still not engage, rather it comes out of the heat and face vents. Shortly after the Defroster stopped engaging, the rpms will start fluctuating from 2 suddenly up to 6-8 without warning or acceleration then go back down and back up as if it's chugging along. Even when applying the brakes, this will continue to happen and there's concern for Rear-ending or crashing when this happens. When driving home 2 nights ago the county police pulled my vehicle over due to burnt out headlight, which was replaced less than 6 months ago. Took the car in to get bulb replaced today and multiple bulbs later, the light is not fixed and it was said to be electrical and need to go to another shop. Beginning to wonder if this is all a bigger problem about to happen with engine/ powertrain.. with commute to work in the dark and electrical problem in the headlight randomly and the acceleration issues there is definitely a concern for safety.

Oil consumption, causing high pressure furl pump to clog. It also causes catalytic converter to clog. No warning of oil loss. Causing stalling out while driving. Caused the engine to seize. New engine replaced and still same problem s

The contact owns a 2015 GMC Terrain. The contact stated that while at a complete stop, the vehicle jerked and shut off. The check engine warning light was illuminated. The contact was able to restart the vehicle and continue driving. The contact stated that on several occasions, while the vehicle was jerking at a complete stop, the contact shifted to park(P) to prevent the vehicle from stalling. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the fuel pump was leaking fuel into the oil gasket. The mechanic replaced the mass air flow sensor, the oil gasket, the fuel pump, the catalytic converter, and the starter; however, the failure recurred while driving. The dealer was notified of the failure and informed the contact that the VIN was not included in an unknown related recall. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 127,000.

I hit a deer and it totaled my vehicle and the Airbags did not deploy

Found steering wheel airbag deployed

The blind spot detection sensors have failed and the rest of the detection systems using the bad sensors are also non functional. An alert is shown in the info center every time the car starts. I have read that the issue is due to poor positioning of the sensors allowing for tire spray to directly hit the non water resistant sensors and their connectors. The replacement parts and labor are ridiculously expensive and the ability for an owner to complete this task is nearly impossible. A simple splash guard behind the tire or even waterproofing the sensor and it’s entirety to avoid water penetrating and causing the very expensive sensor and all detection systems connected to it to fail.

The automatic emergency braking system just goes off without any reason, causing the vehicle to considerably slow down if not stop. This happens several times a week if not multiple times a day again for no reason. There is no advance warning , it just happens.

2015 gmc terrain sle awd. Suv was taking in for oil change found excessive rust on frame under all four doors. On both sides rust and holes near the front of both rear wheels. I believe its called the "rocker" I'm unsure. I bought the car at a little over 71,000 miles in 2022-2023 now just getting to 94,000 in February 2026. If there was rust which there probably was the car should have not been sold if the rust was enough to cause problem later on. I may need to go purchase a new car while still owe some money in the car loan. Rust and hole in the rear control arm. The amount to replace and repair all the parts with labor exceeds current value.

First occurrence in September 2015. Rear lift gate acted abnormally, when I was parked,y son opened the lift gate using the normal door handle button, it raised, but as he was loading it lowered onto him. He is small, I had to get out and pull it off of him, it went up and down a couple times and then closed. You cannot stop it from closing down on you if you are trying to load or unload into that compartment. We have had to stop using altogether.

The contact owns a 2015 GMC Terrain. The contact stated that while driving 5 MPH, the brake, ABS, and stabili-trak warning lights were illuminated. The dealer was contacted and diagnosed the vehicle with an Electronic Brake Control Module failure. The dealer stated that the manufacturer no longer manufactured parts to repair the vehicle. The manufacturer was not made aware of the issue. The failure mileage was approximately 167,446.

The automatic emergency braking system just goes off without any reason, causing the vehicle to considerably slow down if not stop. This happens several times a week if not multiple times a day again for no reason. There is no advance warning , it just happens.

THE CONTACT OWNS A 2015 GMC TERRAIN. THE CONTACT STATED WHILE DRIVING AT VARIOUS SPEEDS, THE TIRE PRESSURE MONITORING SYSTEM DETECTED THAT ALL TIRE PRESSURE WERE LOW. THE CONTACT WAS CONSTANTLY ADDING AIR TO EACH TIRE EVERY OTHER DAY. THE CONTACT ALSO STATED THAT THERE WAS WATER LEAKING INTO THE VEHICLE LEADING TO MOLD GROWING ONTO THE INTERIOR OF THE VEHICLE. THE CONTACT STATED THE LOW TIRE WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS TAKEN TO THE LOCAL DEALER WHERE IT WAS DIAGNOSED WITH THE VALVE STEMS NEEDING TO BE REPLACED. THE MOLD WAS REMOVED AND THE VALVE STEMS WERE REPLACED HOWEVER, THE FAILURE PERSISTED. THE MANUFACTURER WAS INFORMED OF THE FAILURE AND INFORMED THE CONTACT THAT HE WOULD RECEIVE A CALLBACK. THE FAILURE MILEAGE WAS APPROXIMATELY 26,000.

VEHICLE WAS BEING DRIVEN ON RURAL STATE HIGHWAY CONTAINING HILLS AND CURVES TO GET SERVICED FOR LOW TIRES. ABOUT 20 MINUTES INTO DRIVE THE SEAT HEATER WAS TURNED ON. ABOUT 5 MINUTES LATER THE RADIO, SPEEDOMETER, TACHOMETER, FUEL, TEMPERATURE GAUGES AND TURN SIGNALS QUIT WORKING. A TOOL SYMBOL SHOWED UP ON THE OPTIONS SCREEN. DURING THE REST OF THE DRIVE THE RADIO WOULD COME ON INTERMITTENTLY. AT THE SERVICE CENTER A CODE SCANNER SHOWED NO CODES. THE VEHICLE BATTERY (NEW) WAS CHECKED AND CABLES WERE CHECKED FOR LOOSE CONNECTIONS AND CORROSION. THE ISSUE CONTINUED THROUGHOUT THE SERVICE. AFTER SERVICE THE VEHICLE WAS PARKED FOR SEVERAL HOURS. AT STARTUP FOR THE RETURN DRIVE THE ISSUE HAD SELF CORRECTED AND DID NOT RETURN.

FRONT PASSENGER SEAT BELT CHIME COMES ON WHEN THERE IS NOTHING ON THE FRONT SEAT OR ALMOST NOTHING ON THE SEAT. THIS HAS HAPPENED AT LEAST 1/2 DOZEN TIMES OR MORE. I CAN BE DRIVING AND ALL OF SUDDEN COMES ON. IT CAN SCARE ONE ESP 1ST TIME. YOU DON'T KNOW WHAT IS HAPPENING. I THOUGHT I BLEW A TIRE OR DOOR CAME OPEN. MY ATTENTION WAS EVERYWHERE BUT ON 65 MPH TRAFFIC ON FREEWAY. BREAKS ONE'S DRIVING CONCENTRATION. INDEPENDENT OF TEMPERATURE. OTHER PROBLEM I HAVE IS LOTS OF WIND COMES IN ON PASSENGER DOOR. IT IS NOT ALIGNED PROPERLY. GM HAS TRIED A COUPLE OF TIMES WITH NO SUCCESS. VERY ANNOYING AND HARD TO HEAR RADIO ETC.. 3RD PROBLEM IS NAVIGATION,COMMUNICATION CENTER,IT KEEPS DISAPPEARING. IT IS GIVING ME DIRECTIONS SOMEWHERE AND THEN JUST DISAPPEARS AND RESETS. IT HAS BEEN REPLACED ONCE. IT HAS GOTTEN ME STRANDED MORE THAN ONCE. I AM A SENIOR WHO RELIES ON SYSTEM. WHEN IT DISAPPEARS, I AM NOT ALWAYS SOMEWHERE THAT I CAN STOP TO COMPLETELY RESET AND REENTER ALL THE INFORMATION AGAIN. I FEEL THAT THIS IS A SAFETY ISSUE. I WAS ON HWY EVERY TIME AND MOST OF THE TIME NOT IN A REMOTE AREA BUT NOT IN AREA THAT I COULD STOP. IN CA. THERE ARE MANY AREAS YOU DO NOT WANT TO GET OFF THE FRWY AT. ALL INSTANCES ABOVE HAPPENED IN THE CITY AREAS WHILE DRIVING. SERVICE WAS DONE OCT 2015. NONE OF ISSUES RESOLVED DESPITE ATTEMPT. ALL ARE ONGOING.

THE FRONT PASSENGER SEAT BELT CHIME COMES ON EVEN WHEN THERE IS NOTHING OR ALMOST NOTHING IN THE SEAT. THIS MOSTLY HAPPENS WHEN THE AMBIENT TEMPERATURE IS ABOVE 45 DEGREES FAHRENHEIT AND EITHER DURING A BRAKING EVENT OR ACCELERATION EVENT (EITHER FROM A STOP OR DURING AN OVERTAKE MENUVER). IT ALSO OCCURS WHEN THE VEHICLE SPEED GOES ABOVE 60MPH. IN ALL THESE SITUATIONS THE CHIME COMES ON AT MOST IN-OPPORTUNE TIMES WHILE THE VEHICLE IS IN MOTION STARTLING THE DRIVER CAUSING HIM/HER TO TAKE THE EYES OFF THE ROAD TO LOOK AROUND WHAT IS GOING ON WITH THE VEHICLE. THIS ISSUE HAS RESULTED IN MULTIPLE NEAR MISS OCCURRANCES WHILE I HAVE MY 15 MONTH OLD BABY IN THE VEHICLE! THE ISSUE STARTED OCCURRING IN AUGUST 2015 (ABOUT 4.5 MONTHS AFTER I GOT THE VEHICLE). THE DEALER SAYS THAT THIS IS A KNOWN PROBLEM WITH THESE VEHICLES AND THAT NOTHING CAN BE DONE TO FIX THIS. I HAVE SEEN MULTIPLE POSTS ON THE INTERNET ABOUT THIS ISSUE WITH CHEVY EQUINOX AND GMC TERRAIN.

IN 2 DAYS, THE VEHICLE HAS STALLED ON ME. I WAS IN THE PARKING LOT AND ANOTHER CAR ALMOST HIT ME SINCE THE CAR SLOWED DOWN AND THE STEERING WHEEL GOT HARD THEN SHUT OFF. TODAY, I ALMOST GOT HIT AGAIN AFTER STOPPING AT A STOP SIGN GOING INTO A TURN I ALMOST HIT SOMEONE AND A CAR ALMOST HIT ME.

WHILE MAKING A RIGHT TURN AT THE BOTTOM OF A FREEWAY OFFRAMP THE KEYS ON THE KEYRING ATTACHED TO THE KEY IN THE IGNITION GOT STUCK IN THE STEERING WHEEL. THIS BRIEFLY PREVENTED ME FROM EXITING THE TURN, AND THEN WHEN THE KEYS BROKE FREE THE CAR HAD TURNED ITSELF OFF!! I HAD NO POWER STEERING, NO POWER BREAKS AND NO HEADLIGHTS. I WAS ON A SLIGHT DOWNGRADE AND WAS ABLE TO COAST TO THE NEXT BLOCK WHERE I TURNED RIGHT OUT OF TRAFFIC BEFORE COMING TO A FULL STOP. I WAS THEN ABLE TO RESTART THE CAR AFTER PUTTING INTO NEUTRAL (OR PARK, DON'T REMEMBER). THE KEYCHAIN THAT GOT STUCK WAS FROM ENTERPRISE RENTAL AND HAD 2 KEY-FOBS ON IT PLUS A PLASTIC ID TAG ON A SMALL WIRE RING. THIS, COMBINED WITH THE POOR PLACEMENT OF THE IGNITION SWITCH, HAS RESULTED IN MY HITTING THE KEYS WITH MY HANDS WHILE STEERING SEVERAL TIMES SINCE RENTING THE CAR 5 DAYS AGO. THE IGNITION SWITCH IS LOCATED VERY CLOSE TO THE WHEEL AND THE IGNITION KEY WHICH STICKS OUT OF THE LARGE KEY-FOB IS VERY CLOSE TO THE STEERING WHEEL EVEN WITHOUT OTHER KEYS ON THE RING. TESTING THIS IN MY DRIVEWAY IT IS VERY EASY TO TURN THE CAR OFF WHILE IN DRIVE. VERY SCARY! *TR

THE CONTACT OWNS A 2015 GMC TERRAIN. THE CONTACT STATED WHILE DRIVING AT VARIOUS SPEEDS, THE TIRE PRESSURE MONITORING SYSTEM DETECTED THAT ALL TIRE PRESSURE WERE LOW. THE CONTACT WAS CONSTANTLY ADDING AIR TO EACH TIRE EVERY OTHER DAY. THE CONTACT ALSO STATED THAT THERE WAS WATER LEAKING INTO THE VEHICLE LEADING TO MOLD GROWING ONTO THE INTERIOR OF THE VEHICLE. THE CONTACT STATED THE LOW TIRE WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS TAKEN TO THE LOCAL DEALER WHERE IT WAS DIAGNOSED WITH THE VALVE STEMS NEEDING TO BE REPLACED. THE MOLD WAS REMOVED AND THE VALVE STEMS WERE REPLACED HOWEVER, THE FAILURE PERSISTED. THE MANUFACTURER WAS INFORMED OF THE FAILURE AND INFORMED THE CONTACT THAT HE WOULD RECEIVE A CALLBACK. THE FAILURE MILEAGE WAS APPROXIMATELY 26,000.

TL* THE CONTACT OWNS A 2015 GMC TERRAIN. THE CONTACT STATED WHILE DRIVING AT VARIOUS SPEEDS, THE TIRE AIR PRESSURE DECREASED. THE LOW TIRE PRESSURE WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS TAKEN TO CENTRAL BUICK GMC OF NORWOOD (70 BOSTON-PROVIDENCE TURNPIKE, NORWOOD, MA 02062, (781) 473-0908) TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE SET OF VALVE STEMS NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED HOWEVER, THE FAILURE RECURRED. THE FAILURE MILEAGE WAS 35,000.

I'M A SINGLE MOTHER AND MY CAR HAVE BEEN NOTHING BUT TROUBLE WHEN I'M DRIVING MY WINDSHIELD WIPERS STOP WORKING THREE TIMES I HAD TO FIX THEM MY TIRES ALWAYS NEED AIR SO EVERY WEEK I NEED MORE AIR AND THE TIRES IN THE BACK GOES OUT THE FASTEST WHY IS THIS HAPPENING ITS NOT GOOD FOR MY FAMILY PLEASE HELP

WIPER TRANSMISSION FAILED IN A RAIN STORM WITH 70000 MILES. SAME PROBLEM AS 2013 TERRAIN. REPLACED ALL 4 TIRES AT 65000 DO TO 2 TIRES LOSING AIR SINCE NEW, WHEN THEY WERE REPLACING VALVE STEMS TWO OF THEM FELL OUT DUE TO NOT INSTALLED RITE FROM FACTORY!!

2015 gmc terrain sle awd. Suv was taking in for oil change found excessive rust on frame under all four doors. On both sides rust and holes near the front of both rear wheels. I believe its called the "rocker" I'm unsure. I bought the car at a little over 71,000 miles in 2022-2023 now just getting to 94,000 in February 2026. If there was rust which there probably was the car should have not been sold if the rust was enough to cause problem later on. I may need to go purchase a new car while still owe some money in the car loan. Rust and hole in the rear control arm. The amount to replace and repair all the parts with labor exceeds current value.