NHTSA owner reports · September 18, 2026 snapshot.
Engine complaints
33 reportsClear category filterMileage unknown · Apr 10, 2023
EnginePower Train
We own a 2018 GMC Acadia Denali. Upon shifting the vehicle into park, we cannot turn off the engine. The vehicle gives us a "Shift to Park" message on the instrument panel. As a result, we are unable to shut off our engine and, to avoid the battery running out, are forced to attempt to move the shift lever in and out of "Park…
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We own a 2018 GMC Acadia Denali. Upon shifting the vehicle into park, we cannot turn off the engine. The vehicle gives us a "Shift to Park" message on the instrument panel. As a result, we are unable to shut off our engine and, to avoid the battery running out, are forced to attempt to move the shift lever in and out of "Park" to get the car to detect that the shift lever is in fact in ‘Park.’”
NHTSA ODI #11516296
54,000 miles · Apr 16, 2021
EnginePower Train
VEHICLE WILL NOT SHUT OFF AS IT SHOWS SHIFT TO PARK. REOCCURRING PROBLEM.
NHTSA ODI #11408404
Mileage unknown · Jun 16, 2020
Electrical SystemEnginePower Train
MY CAR KEEPS GIVING NOTICE OF IT NOT BEING IN PARK, WHEN ITS CLEARLY SHIFTED INTO PARK. IT WONT SHUT DOWN, LET YOU LOCK DOORS. JUST BEEPS UNTIL IT FINALLY REALIZES ITS IN PARK. EVEN AFTER CONTINUOUSLY RE SHIFTING INTO PARK. WORSE IN THE SUMMER MONTHS. IT NEEDS TO BE FIXED AS MANY OTHERS ARE HAVING THE SAME ISSUE! *TR
NHTSA ODI #11329198
44,000 miles · Jun 12, 2020
EnginePower Train
WHEN I SHIFT THE TO PARK AND TRY TO TURN OFF MY CAR THE SHIFT TO PARK LIGHTS UP AND I HAVE TO DOWN SHIFT AND THEN SHIFT TO PARK AGAIN TO GET MY CAR TO SHUT OFF ALSO THE AIR COMPRESSOR HAS ALREADY QUIT WORKING WITH LESS THAN 40K MILES ON IT. *TR
NHTSA ODI #11328481
17,300 miles · Mar 1, 2020
Electrical SystemEnginePower TrainCrashInjury
VEHICLE WILL NOT ACKNOWLEDGE THAT IT IS IN PARK. FORCES ELECTRICAL TO STAY ON, AND SOMETIMES WILL NOT ENGAGE PARK SO VEHICLE CAN MOVE AS IF I'M NEUTRAL. HAS THUS FAR HAPPENED WITH VEHICLE STOPPED, BUT YOU CAN SOMETIMES SHUT OFF ENGINE AND EXIT VEHICLE WHEN IT IS NOT IN PARK AND CAN ROLL AGAINST YOU, OR ON KIDS EXITING ETC. VE…
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VEHICLE WILL NOT ACKNOWLEDGE THAT IT IS IN PARK. FORCES ELECTRICAL TO STAY ON, AND SOMETIMES WILL NOT ENGAGE PARK SO VEHICLE CAN MOVE AS IF I'M NEUTRAL. HAS THUS FAR HAPPENED WITH VEHICLE STOPPED, BUT YOU CAN SOMETIMES SHUT OFF ENGINE AND EXIT VEHICLE WHEN IT IS NOT IN PARK AND CAN ROLL AGAINST YOU, OR ON KIDS EXITING ETC. VEHICLE ROLLED IN GARAGE AND STRUCK, AND COULD HAVE CRUSHED CHILD AGAINST DOOR.
NHTSA ODI #11315398
23,465 miles · Jan 28, 2020
EnginePower TrainUnknown Or Other
PUT CAR IN PARK WENT TO KILL IT AND IT WONT TURN OFF SAYS SHIFT TO PARK IT IS IN PARK HAD TO DO THIS LIKE 10 TIMES ..TWICE TODAY..MY CAR WONT TURN OFF FINALLY GOT IT OFF. I HAVE ONLY HAD THIS 2018 ACADIA LEAD THAN 1 MTH.. I HAVE READ WHERE THIS IS A BIG MAJOR ISSUE.. WHAT DO I DO
NHTSA ODI #11302677
10,000 miles · Jan 24, 2020
Electrical SystemEngine
MULTIPLE OCCASIONS WHEN DRIVING VEHICLE, THEN ATTEMPTING TO SHIFT FROM DRIVE TO PARK AND ACTUALLY IN PARK AN ERROR COMES ON 'SHIFT TO PARK' COMES ON, I'VE TAKEN IT TO DEALERSHIP AND THEY BLAME ME ON SOME LIGHT BULBS I CHANGED, WELL I CHANGED THEM BACK AND STILL ERROR OCCURS. UNFORTUNATELY WHEN THAT HAPPENS I CAN'T LOCK MY VEHICL…
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MULTIPLE OCCASIONS WHEN DRIVING VEHICLE, THEN ATTEMPTING TO SHIFT FROM DRIVE TO PARK AND ACTUALLY IN PARK AN ERROR COMES ON 'SHIFT TO PARK' COMES ON, I'VE TAKEN IT TO DEALERSHIP AND THEY BLAME ME ON SOME LIGHT BULBS I CHANGED, WELL I CHANGED THEM BACK AND STILL ERROR OCCURS. UNFORTUNATELY WHEN THAT HAPPENS I CAN'T LOCK MY VEHICLE FOR SOME TIME UNTIL MULTIPLE TIMES OF TURNING ON AND OFF THE VEHICLE. (2) WHILE DRIVING FORWARD, MY REAR CAMERA WOULD BE DISPLAYING LIVE EVERYTHING BEHIND ME, WHICH WAS VERY DISTRACTING, TOOK IT TO THE DEALERSHIP, I THINK THEY FIXED IT
NHTSA ODI #11301684
29,100 miles · Dec 3, 2019
Electrical SystemEngineFuel/propulsion System
MY 2018 GMC ACADIA SLT-1 HAS BEEN HAVING ACCELERATION ISSUES LIKE SHUDDERING AND OR FEELS LIKE A FULL LOSS OF POWER , WITH NO CHECK ENGINE LIGHT. I'VE TAKEN IT INTO THE DEALERSHIP TWICE FOR THIS PROBLEM . I'VE ONLY TAKEN IT IN THIS 2ND TIME BECAUSE IT GOT WORSE AND SCARED ME THAT IT WOULD DIE ON THE HIGHWAY. IT ALSO HAS HAD T…
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MY 2018 GMC ACADIA SLT-1 HAS BEEN HAVING ACCELERATION ISSUES LIKE SHUDDERING AND OR FEELS LIKE A FULL LOSS OF POWER , WITH NO CHECK ENGINE LIGHT. I'VE TAKEN IT INTO THE DEALERSHIP TWICE FOR THIS PROBLEM . I'VE ONLY TAKEN IT IN THIS 2ND TIME BECAUSE IT GOT WORSE AND SCARED ME THAT IT WOULD DIE ON THE HIGHWAY. IT ALSO HAS HAD TO HAVE THE BATTERY CHARGED 3 TIMES IN A COUPLE OF WEEKS , YET THE DEALER SAYS THE BATTERY CHECKS GOOD. AT THE LEAST I BELIEVED SINCE ITS UNDER WARRANTY THEY WOULD CHANGE THE BATTERY IN THE CASE THE COMPUTER IS CAUSING ISSUES BASED ON BATTERY VOLTAGE. THE ALTERNATOR IS WORKING , BUT WITH ONLY 29K MILES NONE OF THIS BATTERY NOR ACCELERATION SHUDDER AND STUMBLE LIKE ITS GOING TO DIE SHOULD BE ACCEPTABLE.
NHTSA ODI #11286698
14,000 miles · Oct 24, 2019
Electrical SystemEnginePower Train
WARNING MESSAGE SAYS "SHIFT TO PARK". MESSAGE DOES NOT GO OFF UNTIL YOU TURN CAR ON AND OFF SEVERAL TIMES; PUTTING THE CAR IN REVERSE, THEN DRIVE; THEN SHIFTING BETWEEN GEARS BACK AND FORTH. MAY TAKE 20 MINUTES TO GET THE MESSAGE LIGHT TO GO OFF. GMC HAS TRIED REPLACING GEAR SHIFT, PART OF GEAR TOP. AFTER 5 ATTEMPTS IN TRYIN…
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WARNING MESSAGE SAYS "SHIFT TO PARK". MESSAGE DOES NOT GO OFF UNTIL YOU TURN CAR ON AND OFF SEVERAL TIMES; PUTTING THE CAR IN REVERSE, THEN DRIVE; THEN SHIFTING BETWEEN GEARS BACK AND FORTH. MAY TAKE 20 MINUTES TO GET THE MESSAGE LIGHT TO GO OFF. GMC HAS TRIED REPLACING GEAR SHIFT, PART OF GEAR TOP. AFTER 5 ATTEMPTS IN TRYING TO FIX THE ISSUE, MY CAR SITS AT THE DEALERSHIP FOR AN ADDITONAL 4 WEEKS WAITING FOR A HARNESS FIX (WHICH THERE IS NO PART FOR). THE CAR ALWAYS ROLLS BACKWARDS WHEN THE MESSAGE FINALLY GOES OFF. THIS IS A MAJOR SAFETY ISSUE. IS THE CAR REALLY IN PARK?
NHTSA ODI #11270613
37,000 miles · Sep 13, 2019
Engine
WHENEVER I SHIFT FROM DRIVER OR REVERSE INTO PARK MY CAR ISN'T REGISTERING THAT I SHIFTED TO PARK AND IF GIVING ME THE MESSAGE OF 'SHIFT TO PARK'. I HAD TO SHIFT FROM DRIVE TO PARK AT LEAST 4 TIMES TO BE ABLE TO GET MY CAR TO RECOGNIZE THAT MY CAR WAS IN PARK AND SO I COULD TURN OFF MY CAR.
NHTSA ODI #11255223
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