2020 GMC Terrain SUV FWD

As I was driving on the highway in New York on Route 17 south near exit 111, I tried to accelerate but when I did the car went slower and the check engine light and traction control lights came on. I was right in front of a huge truck and thank God I was in the right lane that I was able to quickly get on the shoulder and turn the car off. I was able to make it to where I was going, but it was very nerve wracking. I took the car to the dealer service center and was told that it was probably a fuse issue. It turns out my entire engine has to be rebuilt. I have approximately 25,000 on my car, how could it require an entire engine rebuild? The dealer has gotten me two rentals cars that only last 5 days at a time each time and now I’m driving a dealer loaner. It’s been 3 weeks and still nothing. I’m still making payments on my car.

Interior lights stays on at night while driving and when parked. Tried turning it off but it won’t turn off

This 2020 GMC Terrain has a "feature" called autostop. This is not a switch to turn this off. It would not be so bad if the engine would run for 5 minutes at a stoplight before stopping the engine but it immediately shuts down the engine after a stop. This is getting annoying and dangerous due to the delay in getting the car moving. I have only had the car for a month. I understand that later gmc cars have a disable switch. This car should be recalled and either disable the auto stop permanently or be able to disable the "feature" on demand. Problem: potential crash hazard due to car not starting and damage to battery and starter.

loss of oil due to engine defect and need new engine. engine and car at dealership. engine has not been torn apart to find cause. occupants could have died because of engine stoppage... GM wants owner to pay over 15,000 for new engine and instillation. car under new car warranty has 24211 miles. no early warning lights of low oil.... Owner took car in immediately when warning lights appeared 9-27-21 and GMC dealership improperly serviced . on 10-14-21 same warning lights reappeared and taken immediately to same close dealership. Now told new engine needed.

While driving instrumental panel and infotainment panel completely blacked out for no reason at all. This is the second time in two days this has happened.

The contact owns a 2020 GMC Terrain. The contact stated while driving at various speeds, the vehicle lost brake functionality while depressing the brake pedal. The contact stated no warning light was illuminated. The vehicle was towed to a local dealer where it was diagnosed with needing the vacuum pump replaced. The vehicle was repaired however, the failure persisted. The manufacturer was not informed of the failure. The failure mileage was approximately 40,000. The VIN was unavailable.

Instrument panel and infotainment system panel completely blacked out while driving vehicle

I had an incident this morning when I put my car in park position it remained in reverse. I took it out of park and put in drive then I put forward but the vehicle still remained in reverse. I turned the vehicle off and it still remained in reverse. Ali controls on infotainment panel was inoperable. ( example: I couldn’t turned off or turned radio).

Not long after I bought my 2020 GMC Terrain my adaptive cruise started disengaging. There are never any warning lights, except the noise and vibration of the seat before it shuts off then tells you it's disengaging. I didn't think anything of it until it's became a regular occurrence in the last month or two. I tell my dealership about it and they drive it but it never disengages on them, so they say nothing is wrong with my vehicle. I have a picture of the "adaptive cruise disengaging" and video of where I can't reset it until after about 15 or so minutes or letting my car set for a while or turning off the engine then it works again. I also have noticed that my auto start/stop hasn't been turning on & off anymore.

On fairly level ground, reduce speed hill descent control msg has activated (12 mile and maxwell area 2x, Rochester Hills Kohls parking lot exit) and once entering river bend dr. vehicle has also has had activated brakes on oak hill street in rochester. the vehicle has less than 4100 miles. very concerning about activated brakes.

After starting my vehicle on May 28, 2021, the infotainment screen was pink and green with lines. The radio was playing loudly, and I had not previously set it to that volume. Additionally, the volume control button did not work. I headed to the nearest GM dealer, and I did not attempt to turn off the screen. A service representative said I needed an appointment, and I could not be seen until one day during the next week. I needed the turn-by-turn navigation, and I did not know if the issue would worsen or cause other issues, so I asked for a rental vehicle. My vehicle had accumulated less than 10,000 miles, and I have an extended warranty. I was told the vehicle has to be diagnosed before a rental is approved, and their loaner vehicles were out for two and a half weeks. Every dealership I called stated I could not get an appointment that day. I asked GM to call dealers, and nothing worked. GM said if I rented a vehicle, they would not reimburse me because my vehicle would need to be diagnosed beforehand, with a minimum of a one-day, overnight stay. Normally, the back-up camera takes too long to transition to the radio screen, and it has temporarily appeared black. At less than 300 miles, the vehicle stopped going into drive. That occurred three times, placing me into a dangerous situation the third time, before the selling dealer decided to replace the transmission. At less than 8,000 miles, the driver door switch had to be replaced. I purchased the vehicle with seven accumulated miles. I am still getting familiar with this state, so I need navigation, but it would have caused major safety issues had I attempted to visit family members out-of-state, like I had planned, without turn-by-turn navigation. I had to forgo visiting my family. If more pressing issues had arisen, I would have been completely stranded, over a long weekend, and possibly on a roadside, like before. If I had a family emergency to attend to, the situation would have been horrible.

WHILE STARTING VEHICLE THE INFOTAINMENT SCREEN WENT BLACK AND NOTHING WOULD WORK. STAYED THIS WAY WHILE DRIVING. STOPPED TURNED OFF CAR AND STILL DIDNT WORK. WAS TOLD IT WAS THE DATA COMMUNICATIONS MODULE.

SERVICE BRAKE ASSIST MESSAGE CAME ACROSS SCREEN AFTER I WAS UNABLE TO PUSH DOWN BRAKE PEDAL.

I AM A MALE OF 6'1" HEIGHT AND FIND IT VERY HARD TO SEE OUT THE REARVIEW MIRROR WHEN I DRIVE MY WIFE'S GMC TERRAIN. BECAUSE OF THE LIMITED MOBILITY OF THE MIRROR, I AM UNABLE TO SEE OTHER CARS BEHIND MY VEHICLE WITHOUT LOWERING MY HEAD AND RECLINING MY SEAT BACKWARDS, BOTH OF WHICH CAN BE VERY DANGEROUS TO DO WHILE DRIVING. I WOULD LIKE TO SEE THE MIRROR ADJUSTED TO BE LONGER, OR ABLE TO BE ADJUSTED FURTHER UPWARD TO IMPROVE VISIBILITY FOR TALLER PEOPLE, LIKE MYSELF.

WHEN EVER I GO TO TURN MY STEERING WHEEL AND I GO TP PUCH IN THE GAS PEDDLE THERE IS A VIBRATION DURING MOTION.

THIS VEHICLE IS UNSAFE DUE TO A VIOLENT SIDE TO SIDE WOBBLE IN THE FRONT END MUCH LIKE THE JEEP DEATH WOBBLE. THIS HAPPENS CONSTANTLY ANYWHERE FROM 30MPH - 70MPH USUALLY AFTER HITTING A SMALL BUMP OR WHEN TURNING HARD. THE TURNING ASPECT IS WHERE IT HAS BECOME VERY DANGEROUS ON SLIPPERY SURFACES AS THE CAR THEN SLIDES OUT. I LIVE IN THE MOUNTAINS WHERE THIS IS A NORMAL OCCURANCE. I AM ACTUALLY AFRAID TO DRIVE THIS VEHICLE ANY LONGER. THE DEALERS HAVE CONFIRMED THE ISSUE, BUT STATES THAT GM DOES NOT HAVE A FIX FOR THIS AS OF NOW. I HAVE HEARD THIS IS AFFECTING ONLY THE AWD TERRAINS AND EQUINOX PLATFORMS. GM HAS BEEN UNRESPONSIVE TRYING TO GET AN ANSWER OR GETTING THIS FIXED. THE CAR HAS BEEN INTO MULTIPLE DEALERSHIPS SEVERAL TIMES FOR THIS SAME ISSUE AND HAS BEEN HAPPENING SINCE THE CAR TURNED ABOUT 2400 MILES AND HAS BEEN HAPPENING MORE FREQUENTLY SINCE THEN FOR THE PAST 6000 MILES.

MY AIR BAG WARNING LIGHT/DASHBOARD MESSAGE HAS COME ON 7 TIMES IN THE LAST 3 WEEKS, ALONG WITH 4 OTHER TIMES IN THE 2 MONTHS PRIOR, BUT THE GMC DEALERSHIP WILL NOT INVESTIGATE SINCE IT DOES NOT STAY ON. AT THE MOST RECENT EVENT THIS WEEKEND, I PRESSED ONSTAR, AND THEY RAN DIAGNOSTICS AND EMAILED ME THE "B0085" DETECTED ERROR CODE, BUT MY DEALERSHIP WILL STILL NOT INVESTIGATE, SINCE THE LIGHT WENT OUT. THE LIGHT HAS COME ON AT STARTUP AND WHILE DRIVING. WARNINGS HAVE COME ON 8/27/20, 10/5, 10/8, 10/12, 111/28, 12/2, 12/8(X2), 12/11, 12/14, AND 12/19/20.

VEHICLE WAS ON 1/8 OF A TANK,I TRIED TO FILL, IT WOULD ONLY TAKE ON 5 GALLONS OF FUEL, GAS GAUGE READ FULL. REPORTED TO DEALER, THERE IS A 'BULLETIN' ON THE VEHICLE, FUEL TANK WAS REPLACED. AFTER SUCCESSFULLY FILLING TANK 3 TIMES, IT HAPPENED AGAIN, RETURNED VEHICLE TO DEALER, THEY COULD NOT REPLICATE, BROUGHT VEHICLE HOME, DEALER WAS ABLE TO FILL TANK WITH APPROX 13 GALLONS, I RAN IT TO 1/8 OF A TANK TRIED TO FILL AND IT CONTINUES TO ONLY FILL WITH 2-6 GALLONS, AND RECORD ON THE GAUGE A FULL TANK. VERY DIFFICULT TO TELL HOW MUCH FUEL IS ON BOARD. MEETING WITH GMC DISTRICT REP 11/19/2020. THEY SUGGESTED I DRIVE IT TILL IT RUNS OUT OF FUEL AS TO SEE WHAT THE GAUGE READS! REALLY? HELP PLEASE! I HAVE PHOTOS OF THE PUMPS AND DASHBOARD TO RECORD AND TIME STAMP. I NEED HELP PLEASE! THE FIRST OCCURRENCE WAS SEPTEMBER 28, 2020 , SECOND OCCURRENCE OCTOBER 16,2020 AND THIRD WAS NOVEMBER 15,2020. THE VEHICLE WAS RETURNED TO THE DEALER ON OCTOBER 16, THEY TRIED TO REPLICATE WITH NO LUCK, VEHICLE WAS RETURNED TO ME NOVEMBER 11,2020! 26 DAYS LATER. HELP!

ONLY A MONTH AFTER PURCHASING MY VEHICLE I STARTED TO FEEL A WOBBLE IN THE FRONT END WHEN ACCELERATING UP HILLS AND TURNING WHILE ON THE GAS. I TOOK IT TO THE DEALER AND THEY CHANGED OUT THE FRONT TIRES STATING THAT THE PROBLEM HAD BEEN FIXED. ONCE AGAIN WHILE DRIVING THE PROBLEM PERSISTED. I TOOK THE CAR BACK TO THE DEALER AGAIN AND THEY SAID THAT THEY COULD NOT FIND ANYTHING WRONG AND SUGGESTED THAT I MAKE AN APPOINTMENT TO GO FOR A DRIVE WITH THE MECHANIC TO SHOW THEM WHAT IS HAPPENING. I MADE AN APPOINTMENT. A DAY BEFORE THE APPOINTMENT I RECEIVED A CALL FROM THE DEALERSHIP STATING THAT AN EMPLOYEE RECENTLY PURCHASED THE SAME CAR AND THEY ARE HAVING SIMILAR DIFFICULTIES. THEY FOUND ONLINE THAT GMC WAS REQUESTING INFORMATION FROM DEALERS ABOUT THE PROBLEM AND WAS TOLD THAT I NOW NEED TO WAIT FOR GMC TO COME UP WITH A SOLUTION. MY CAR SHAKES EVERY TIME THAT I DRIVE IT, IT'S AWFUL, AND IT ONLY HAS AROUND 6,000 MILES ON IT. I'M NOT SURE WHAT TO DO BECAUSE THE DEALERSHIP TOLD ME THAT I HAVE TO WAIT FOR A SOLUTION. THEY ARE NOT EVEN TRYING TO FIX ANYTHING AT THIS TIME. PLEASE HELP.

TWICE WITHIN THE LAST TWO MONTHS MY ENTIRE RADIO SHUT OFF, MY SCREEN WENT BLACK AND SO DID MY GAUGES FOR AT LEAST 20 SECONDS. THEN THEY JUST CAME BACK ON AND PICKED UP WHERE IT LEFT OFF.

PURCHASED NEW 2020 GMC TERRAIN W/7MILES. LEFT DEALERSHIP ON MY WAY HOME, AND WITHIN 20 MILES, RECEIVED A MESSAGE ON DASH-> SERVICE - ESC - DISMISS. CHECK ENGINE LIGHT FLASHED SEVERAL TIMES, AND THE SUV SLOWED DOWN AT LEAST 10 MILES FROM 65MILES PER HOUR. AFTER ENGINE LIGHT STOPPED BLINKING, I CONTINUES HOME AROUND 30 MILES MORE WITH NO MORE PROBLEMS. CALLED MY SALES PERSON THE NEXT DAY, AND HE DID NOT KNOW WHAT ESC WAS. (ELECTRONIC STABILITY CONTROL) HE CALLED ME BACK AND INDICTED THE VEHICLE MAY NEED A SOFTWARE UPDATE. I TOLD MY WIFE, WHY WOULD A DEALERSHIP NOT CHECK ON VEHICLE SOFTWARE UPDATES BEFORE RELEASING VEHICLES TO THE NEW OWNERS, PRIOR TO LEAVING THE DEALERSHIP. THIS IS CALLED, "BEING PROACTIVE." WE WERE ON THE HIGHWAY LEAVING THE DEALERSHIP AFTER PURCHASING THIS NEW SUV.

WHEN REVERSING OUT OF A PARKING SPOT, BRAKES FAILED CAUSING ACCIDENT. MULTIPLE ATTEMPTS TO DEPRESS BRAKE PEDAL WITH NO BRAKING. HIT A PARKED CAR. AFTER SHUTTING CAR OFF AND ATTEMPTING TO MOVE VEHICLE BRAKES DID ENGAGE AND RESPOND CORRECTLY. REAR DAMAGE TO TERRAIN OCCURRED REQUIRING TOWING.

WE DROVE TO A FARM WITH A FAMILY OF 5M KIDS AND AN ELDERLY, AND PARKED MY CAR FOR 2-3 HOURS IN THE FARM'S OPEN AREA PARKING LOT. VEHICLE SHOWED NO WARNING LIGHTS, NO PROBLEMS, NO ISSUES DURING OUR DRIVE TO THE FARM AND PRIOR TO THIS TRIP. EVERYTHING WAS FINE WHEN WE GO THERE AND PARKED. WE WERE READY TO LEAVE THE FARM TO DRIVE BACK HOME, BUT THE CAR SIMPLY WOULDN'T START.THE NEUTRAL GEAR DIDN'T WORK, I ATTEMPTED MANY TIMES IN 30 MINUTES TO START THE CAR, BUT IT DIDN'T START, CONTINUED MAKING THE SOUND OF ENGINE ATTEMPTING TO START BUT NOT SUCEEDING. 30 MINUTES LATER, I DECIDED TO GIVE IT ANOTHER TRY, I WAS AFRAID TO BURN DOWN THE STARTER AFTER ATTEMPTING SO MANY TIMES. IT SOUNDED TERRIBLE, SCREECHING METAL SOUND. ALL OF A SUDDEN, THE CAR STARTED. I LET IT RUN, AFRAID TO TURN IT OFF AGAIN. AFTER 15 MINUTES OF RUNNING, WHILE WE WERE WAITING FOR ROADSIDE ASSISTANCE TO ARRIVE, THE VEHICLE TURNED OFF AGAIN, ALL BY ITSELF. NO ONE WAS INSIDE THE CAR, WE WERE WAITING OUTSIDE WITH THE DRIVER DOOR WIDE OPEN. I CALLED ROADSIDE ASSISTANCE, WAITED 40 MINUTES TO GET A LIVE AGENT TO TALK TO. THE YELLOW ENGINE LIGHT IS ON. I TRIED TO LOOK IN THE MANUAL TO BE ABLE TO FIND ANYTHING REMOTELY CLOSE TO WHAT WAS HAPPENING. CAME UP WITH NOTHING. THIS WAS SO FAR THE TRICKIEST THING TO HAPPEN TO ME. I SCHEDULED AN APPOINTMENT TO TAKE THE CAR TO THE DEALERSHIP FOR DIAGNOSIS.

THE AC SYSTEM PRODUCES A TOXIC CHEMICAL SMELL CAUSING THE DRIVER AND/OR PASSENGER TO OPEN THE WINDOWS IN ORDER TO REMOVE THE TOXIC ODOR. THE SMELL IS INTERMITTENT AND CAN BE MODERATE TO EXTREMELY POTENT.THE VEHICLE IS USUALLY IN MOTION WHEN THIS OCCURS AND CAN HAPPEN WHILE DRIVING LOCALLY AND ON THE HIGHWAY. THE LAST TIME THIS HAPPENED WAS AUG. 1, 2020. I HAVE HAD THE VEHICLE SEEN AT A LOCAL GMC DEALER 3 TIME SINCE JUNE, 2020. THE VEHICLE WAS NOT DRIVEN BETWEEN MARCH AND EARLY JUNE DUE TO THE PANDEMIC.

EVERY WEEK IT'S SOMETHING DIFFERENT. IN MOTION... NO CRUZE CONTROL. NO AUDIO. DON'T DRIVE OVER 50MPH BRAKE PROBLEM. PARKING BRAKE ENGAGES RANDOMLY AND WITHOUT USER ENGAGEMENT. NO AWD. NO STABILITY TRACTION. THIS HAPPENS SO FREQUENTLY THE DASH INDICATORS HAVE BEEN REDUCED TO 'IDIOT LIGHTS'. AT WHAT POINT DO I BECOME CONCERNED? THINGS APPEAR TO RESOLVE WHEN THE ENGINE IS TURNED OFF AND BACK ON, SOMETIMES....I COMPARE IT TO OTHER GLITCHY TECHNOLOGY. HOWEVER I POTENTIALLY COULD BE AT AN 80MPH CRAZING SPEED WHEN I DECIDE TO IGNORE THE IDIOT LIGHTS...WHAT HAPPENS WHEN A REAL PROBLEM PRESENTS AND I IGNORE THE DASH INDICATORS DO TO FREQUENT GLITCHES? I'M SO DISAPPOINTED. MY 2 PREVIOUS TERRAINS WERE 10 TIMES THE VEHICLE THE 2020 MODEL YEAR.

THE COMPLAINT I HAVE IS THE INSIDE FRONT OF THE CAR IS TOO SMALL AND I CANT REACH THE GAS PEDAL EXCEPT WITH MY TOE. MY FOOT KEEPS SLIPPING OFF AS I AM DRIVING. I HAVE TO HAVE THE SEAT WAY UP OR I CANT REACH. I AM 5 FOOT TALL WOMAN. THIS IS A RIDICULOUS THING THAT I HAVE TO PUT UP. I DROVE IT FOR 10 MINUTES AND DIDN'T REALIZE IT. I ASKED FOR A PEDAL THAT IS LONGER AND CLOSER TO THE FLOOR AFTER I HAD BOUGHT IT AND SERVICE PEOPLE TOLD ME THEY DON'T HAVE ANYTHING TO DO TO FIX IT. THEY ASKED IF I HAD A BUTTON TO ADJUST IT AND I DON'T. ITS ON THE EXPENSIVE ONE. THIS SHOULD BE ON ALL VEHICLES FOR SAFETY. I WANTED TO GIVE IT BACK BUT THEY NEVER HELPED ME. I HAVE 1100 MILES ON IT .IT NEW STILL. THE OTHER THING THIS CREATES IS I AM UP SO CLOSE TO THE STEERING WHEEL THAT ITS ALMOST ON MY CHEST IN ORDER TO REACH PEDAL WITHOUT HAVING TO STRAIN AND LATER HAVING PAIN IN MY LEG FROM DOING THAT. I AM SO DISAPPOINTED WITH CHUCK NASH GMC IN SAN MARCOS , TEXAS. IS THERE ANYTHING TO BE DONE BY THE GMC COMPANY. I ALSO TOLD THE SALESMAN I WANTED A CANYON PICKUP LIKE I HAD BEFORE. I TRADED THAT ONE IN DUE TO THE FACT THAT THE 2017 CANYON WAS ALWAYS IN THE SHOP. ONLY HAD IT FOR 2 YRS AND 1 MONTH. THEY WERE NO HELP! THANK YOU, [XXX] PLEASE HELP ME INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

WHEN CRUISE CONTROL IS ENGAGED AT 71MPH, HOLDING +RES BUTTON TO INCREASE SPEED AND RELEASING IT AT 77MPH SETS CRUISE SPEED TOO HIGH. CAR CONTINUES TO ACCELERATE. CRUISE GETS SET AT 100MPH AND ACCELERATES MORE THEN DESIRED. SEE LINK WITH VIDEO OF EVENT HTTPS://PHOTOS.APP.GOO.GL/O7ZGEQWCSU7KYCV58 SEE ATTACHED PICTURE OF OWNERS MANUAL