2020 GMC Acadia other reported problems

UNKNOWN OR OTHER

Received a power steering reduced notice when starting the car, noticed shortly after driving the temperature gauge had not moved from its resting position. A few trips later it still had not moved and the check engine light came on. Mechanic looked at it said it may be a sensor quoted $1k to fix. A few days later it randomly started working and the light went off so I did not have it fixed. About 4 months later the same code displayed on the dash with the same issues. This time I noticed the ac would not work either it only blew out hot air. Also the fan under the hood turns on as soon as the car is started. Been about 3 days and it started working again out of nowhere.

NHTSA complaint #11758890 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I believe my car should be included in this recall. I've had the dealer check and they say it's nothing wrong with my car. 2020 GMC Acadia Fuel Pump Recall GMC has announced that 2781 vehicles have been affected by a Fuel Pump recall. General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, Cadillac XT6, Chevrolet Traverse, and GMC Acadia vehicles. The fuel pump's jet nozzle may have a plastic burr remaining from the manufacturing process, possibly causing a blocked nozzle and an insufficient fuel supply to the engine. Insufficient fuel supply can result in an engine stall without warning, increasing the risk of a crash. 2020 GMC Acadia Recall Fuel Pump GM will notify owners, and dealers will replace the fuel pump module. The recall began November 16, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick Customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202314760.

NHTSA complaint #11746751 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I bought the car at the end of October 2025, so it was always cold till last month. Last month the first day it’s warm I get a warning saying my steering assist has been limited with a code saying the thermostat needs replacing as well as the sensor. This is a known issue with these vehicles and now I have to pay $1500 out of pocket to have fixed because my limited warranty expired 2 weeks before it was warm enough to trip the codes. This is ridiculous especially seeing as I am disabled and can’t afford an extra $1500 after spending $7000 for the down payment!

NHTSA complaint #11731342 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

While idling, my vehicle has a strong exhaust smell inside the cabin. Per the GM Dealer, this is due to faulty flex hose.

NHTSA complaint #11729759 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I own a 2020 GMC Acadia that has experienced multiple major mechanical failures within one year. In January 2025, at around 74,000 miles, the transmission failed completely with no warning or clear indication of what was wrong. The vehicle suddenly lost power while driving, creating a safety risk for me and my child. I was quoted around $12,000 for the transmission replacement initially before getting GM involved. GM covered all but approximately $3,600 out of pocket for me and also covered 100% of the timing cover replacement, which was found to be defective during the same repair. Now, at about 84,000 miles, the thermostat has failed, triggering the check engine light. This repair has not yet been completed and is estimated at around $1,500. My dealership informed me they keep thermostat parts in stock because this failure is so common on Acadias. There were no warning lamps or symptoms before any of these failures occurred. All repairs and diagnostics—including the current issue—were done at the same GMC dealership where I’ve always had my vehicle serviced on time. I’ve been a loyal customer and maintain my vehicle according to the recommended schedule. Despite that, I have faced repeated high-cost repairs on a 5-year-old vehicle with relatively low mileage, which has been financially and emotionally overwhelming—especially as a parent who recently lost employment. Having the transmission, timing cover, and now thermostat all fail in such a short time clearly raises concerns about the reliability, safety, and manufacturing quality of the 2020 GMC Acadia’s powertrain and engine systems. Given that GM has already covered most of the transmission and timing cover repairs and dealerships acknowledge frequent thermostat failures, this appears to be a systemic defect that warrants formal investigation.

NHTSA complaint #11697288 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Heater Core broken

NHTSA complaint #11658163 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

While i was driving a code came on my dashboard that read "Steering assist is reduced drive with care". Soon after my check engine light came on. I pulled over not knowing what was happening. I took it to the garage to have it looked at and the mechanic stated that there are over 1000 gmc customers with this same issue and that the thermostat is stuck open. Which may cause major malfunction or even blow the engine. I looked up recalls for my vehicle and there are none but gmc issued a recall on other vehicles for this same issue. How do I get help here?

NHTSA complaint #11658259 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

When it rains(or car wash) my power locks don't work. I get locked out of my car. My car reset itself in the middle of an intersection(like I turned it off and back on again). One of my gauges is always not working. The sunroof doesn't work right. Water is getting in the electrical area somehow. I've taken it to two chevrolet dealerships, but no help.

NHTSA complaint #11646575 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Rear-View Camera Failure: The rear view camera functions intermittently. While in Reverse, the screen goes black, with a red triangle and a circle with a line through it. This SAFETY ISSUE increases risk of incidents resulting in injury and/or property damage while the vehicle is in reverse. I understand there already exists a NHTSA RECALL (NHTSA Campaign Number: 22V709000) however, it states that only vehicles equipped with the optional Surround Vision feature are affected. My vehicle does not have the 360 Surround Vision (RPO UV2). but is experiencing the same SAFETY ISSUE!

NHTSA complaint #11608328 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Rearview camera is intermittently non-functional when placed in reverse gear, and shows a red triangle and red camera icon on the screen along with a circle and slash through it. See attached photo.

NHTSA complaint #11504546 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

GMC safety recall was issued in Sept. 2022. (N222378380) My backup camera (2020 GMC Acadia) has been going in and mostly out since Jan. 2021. GMC has yet to find a fix for this issue, about 4 months since the recall but almost a year and a half for my car. I have had it in for service 3-4 times and thy can't fix it. It is a safety issue as we depend heavily on the camera to back up and the front camera to avoid hitting objects. We have had a few close calls but no damage, YET. I have had numerous conversations with GMC and my dealer. I keep getting the same answers. They can't (parts, no know fix, whatever) and won't do anything to fix the problem. I have been without this highly priced option for almost 2 years. Someone needs to get their act together. this is too long of a time to have this problem still exist..

NHTSA complaint #11500156 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Center console display does not start when you start vehicle. Stays blank! This happens occasionally. Sometimes restarting will fix, other times not. There is no rear view camera when this happens. Not sure what else is affected, such as backup warnings.

NHTSA complaint #11477176 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

SQUEAKING NOISE FROM THE FRONT END DRIVER SIDE JUST APPEARED WHILE DRIVING. DRIVER SEATBELT WILL NOT LATCH ON THE FIRST COUPLE OF TRIES.

NHTSA complaint #11339516 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

PURCHASED NEW 2020 GMC ACADIA DENALI IN DEC 2019. VEHICLE WAS EQUIPPED WITH SEVERAL DEALER ACCESSORIES INCLUDE ROOF RAIL CROSS-BEAMS. THESE WERE NOT IN STOCK AT TIME OF PURCHASE AND RETURNED AFTER 1 WEEK TO INSTALL. AFTER PICKING UP THE VEHICLE ON MY DRIVE HOME, I HEARD A WHISTLING/HUMMING NOISE COMING FROM THE EXTERIOR AT ABOUT 30 MPH. AS I ENTERED THE HIGHWAY AND TRAVELING AT 65 MPH, THE NOISE WAS DEAFENING AND THE VEHICLE DID NOT HANDLE VERY WELL, VIBRATION IN THE STEERING. I IMMEDIATELY RETURNED TO THE DEALER AND DETERMINED THE NOISE WAS FROM THE ROOF RAIL CROSS-BEAMS. SERVICE TEAM THAT THERE COULD BE SOME NOISE BUT IT WOULD NOT AFFECT THE VEHICLE HANDLING. I HAD THEM REMOVED AND THE DRIVE HOME HAD NO ISSUES. BUYER BEWARE IF YOU ARE ONLY GETTING THE CROSS-BEAMS AS AN ADDED ACCESSORY AND WILL NOT UTILIZE TO CARRY ANY ITEMS, IE; KAYAK, BIKES, ETC.

NHTSA complaint #11297709 — an unverified report by a vehicle owner.