There are 4 owner-reported engine complaints for the 2019 Buick Enclavein NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
On Sept 6th the check engine light came on. A diagnostic test showed it was code P0442 related to the canister purge valve /solenoid. It also showed that it was a permanent thing that had been on there a while but when I look up my Vin number there is no recalls for it, but there is for other 2019 Buick enclaves.
Evaporative emission canister purge, solenoid valve, yes. My safety was at risk due to stalling 3 different times on busy roads/intersections after refueling my vehicle. When the Solenoid valve and canister fail when coming to a stop after refueling it causes the car/engine to flutter and completely stall then goes into neutral. It takes multiple restarts in order to even make the car go along with pressing on the gas. This part has been replaced twice by the dealership once at the end of march and again on the 10th of June. The first incident occurred mid-march, the second end of march and the latest incident occurred 7 June where I had to restart it 7 times before it would even drive, at that time my check engine light was on and it was making a loud noise. After this last replacement the vehicle was refueled and it started to flutter and idled hard, it will be taken to the dealership once again on the 20th of June. The vehicle has not been inspected by anyone other than dealership. There were no warning lights prior to the failure, the only indication was the car started to flutter prior to stalling. The most recent date is stated below.
THE SEAL AROUND THE TIMING CHAIN WAS LEAKING RIGHT FROM THE FIRST DAY WE BOUGHT THE CAR. THE CAMSHAFT WAS ALSO PITTED AND REPLACED. IT WAS FIXED BY THE DEALER UNDER WARRANTY. THIS ALSO HAPPENED ON OUR 2009 BUICK ENCLAVE. IT LEAKED A LARGE AMOUNT OF OIL THAT COULD HAVE CAUSED MAJOR ENGINE DAMAGE.
NOTE: MILEAGE IS 1240 MILES, JUST PURCHASED THREE MONTHS AGO WITH 54 MILES ON IT AND SHIPPED TO GERMANY (DOD CIVILIAN). WHILE IN EUROPE, I AM USING THE VEHICLES' "METRIC" SETTING (KPH VERSUS MPH), WHICH SWITCHES THE SPEEDOMETER TO READ KPH AND AUTO TUNES THE ENGINE TO THE APPROPRIATE LEVELS TO MATCH KPH. I HAVE BEEN DRIVING THIS VEHICLE FOR THE LAST THREE WEEKS UNTIL THE ISSUE HAPPENED LAST NIGHT AROUND 1830 HOURS CET. ISSUE: WHILE ACCELERATING AND TUNING LEFT FROM A STOP (STOP LIGHT WITH THE CITY), THE ENGINE SUDDENLY LOSS POWER THEN JERKED INTO A LOWER GEAR, BUT SOMEHOW GOT STUCK IN 3RD GEAR RESTRICTING MAX SPEED OF ABOUT 25-30 MPH RUNNING AT 5000 RPMS. AFTER SEVERAL ATTEMPTS TO STOP, START, AND PROCEED, I FOUND THE VEHICLE SEEM TO BE SLIPPING WHEN SHIFTING FROM 2ND TO 3RD GEAR, BUT WOULD NOT GO BEYOND 3RD GEAR CAUSING THE ENGINE TO STRAIN AND REV AT AN UNSAFE LEVELS. TRIED SEVERAL TIMES TO SHIFT TO "L" TO MANUALLY ENGAGE THE ENGINE, BUT IT KEPT CHANGING BACK TO "D" AUTOMATIC. ALSO NOTED THAT WHEN THE VEHICLE REACHES THE NEXT PROGRAMMED GEAR SHIFT (E.G. 2ND GEAR TO 3RD GEAR) IT THEN JERKS, STALLS FOR ABOUT 2-3 SECONDS, THEN SUDDENLY ENGAGES 3RD GEAR RUNNING AT EXTREMELY HIGH RPMS AND NEVER SHIFTS BEYOND THAT. NOW CHECK ENGINE LIGHT IS ON. VEHICLE HAS NEVER BEEN IN AN ACCIDENT, DAMAGED, OR WRECKED.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026