2016 Buick Enclave engine problems

What owners report

• “The X50A underhood fuse block (passenger side, near battery) has melted through at terminal 51 / run crank relay location. Plastic housing is burned through with charred bus bars and melted connector underneath, next to main battery cable. Vehicle first showed "Service Stabilitrak," "Service Traction Control," and "Engine Power Reduced," then went to crank-no-start condition requiring repeated jump starts to move. Codes P1682 and P0689 present. Each jump causes more heating at melted area. Thi…”

  NHTSA complaint · filed 11/01/2026

• “I purchased this used 2016 Buick Enclave in July 2026. Shortly after purchase, the vehicle began repeatedly jerking and hesitating while driving. During occurrences, Traction Control/StabiliTrak warnings appeared and the vehicle experienced loss of power and difficulty accelerating normally. I reported the jerking/drivability problem to the selling dealer. On July 27, 2026, the selling dealer attempted a repair after I reported the jerking/drivability problem. Within approximately five minutes …”

  NHTSA complaint · filed 08/31/2026

• “Traction stabilization light comes on very frequently and vehicle loses power, step on gas and it sputters can’t get out of any one’s way, they throw parts at it and never fixes. From feedback off internet a big problem 2008-2017 enclaves”

  NHTSA complaint · filed 07/08/2026

• “During a rainstorm water is entering the fuse box under the glove box and the carpet and padding underneath is soaking wet on the right front floor.When the fuse case was opened water started to drip out.The engine continues to run with the key off and the only way to stop it is to pull the ignition fuse under the hood. Unfortunately the battery died by morning and I could not get it charged for a few days. Now I have learned how to take the battery cover off which is located in the back of the …”

  NHTSA complaint · filed 02/16/2025

• “The contact owns a 2016 Buick Enclave. The contact stated that while accelerating from a complete stop uphill, with his children in the middle rear passenger’s seats, the vehicle stalled. The check engine warning light illuminated. The contact shifted to neutral and allowed the vehicle to roll downhill to the side of the road. The contact turned off the vehicle for 10 minutes. The contact restarted the vehicle and was able to continue to drive to his destination; however, the failure reoccurred …”

  NHTSA complaint · filed 02/16/2022

• “MY CAR ISN'T LEAKING ANY OIL SO IT IS BURNING IT AND ITS IT'S UNDER WARRANTY STILL BUT THEY WON'T FIX ANYTHING ON IT AND OTHER YEAR AND MAKE MODELS ARE HAVING THE SAME PROBLEM.”

  NHTSA complaint · filed 04/20/2020

• “MY CAR WAS REPAIRED BY A DEALERSHIP IN TEXAS. FIRST THEY SAID IT WAS A FUEL INJECTOR. THEY REPLACED THAT. THEN THEY SAID THAT THAT DIDN'T WORK SO THEY SAID I HAD A CRACKED HEAD. THEY REPLACED THAT. I BROUGHT IT HOME TO SHREVEPORT, LA. AND IT HAD GAS FUMES COMING OF OF THE A/C VENTS. THE DEALERSHIP HERE IN BOSSIER CITY THAT THEY PUT IN A BROKEN PART. THEY SUPPOSEDLY FIXED THE PROBLEM. I PICKED THE CAR UP AND IT STILL HAD GAS FUMES. I TOOK IT BACK. THEY SMELLED IT. KEPT IT FOR 2 DAYS. THEY COULDN'…”

  NHTSA complaint · filed 07/04/2019

• “TL* THE CONTACT OWNS A 2016 BUICK ENCLAVE. THE CONTACT STATED THAT THE VEHICLE WAS USING AN EXCESSIVE AMOUNT OF OIL BEFORE SCHEDULED OIL CHANGES. THE ENGINE LOW INDICATOR WAS ILLUMINATED. THE VEHICLE WAS TAKEN TO CLASSIC ARLINGTON BUICK GMC (1400 E. I-20 HWY, ARLINGTON, TX 76018) WHERE THE OIL CONSUMPTION TEST WAS PERFORMED TWICE. THE DEALER STATED THAT THE VEHICLE WAS PERFORMING AS DESIGNED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 50…”

  NHTSA complaint · filed 03/08/2018

Unverified owner reports from NHTSA's public complaint database.

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