There are 2 stored owner reports matching the engine leading-label group for the 2017 Buick LaCrosse in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)The contact owns a 2017 Buick Lacrosse. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power on several occasions. The vehicle restarted after a while. The vehicle was taken to the local dealer where it was diagnosed with a faulty power inverter module. The vehicle was repaired but the failure persisted. The manufacturer was not notified of the failure. The approximate failure mileage was 12,500.
PURCHASED VEHICLE JULY 25, 2020. TOOK THE CAR FOR ITS FIRST OIL CHANGE, IN OCTOBER. ON NOV 23, 2020, THE CAR ENGINE LIGHT CAME ON WHILE DRIVING ON THE HIGHWAY. ERROR CODE: P0430 "CATALYST SYSTEM LOW EFFICIENCY BANK 2". ON NOV 24, 2020, I TOOK THE CAR TO "RICK MATHEWS GMC/BUICK DEALERSHIP" FOR DIAGNOSTIC AND REPAIR. THEY PLACED AN ORDER FOR THE PARTS NEEDED FOR REPAIR AND TOLD ME, THAT MY CAR WAS DRIVABLE. ON DEC 4, 2020, I WAS HAVING PROBLEMS WITH DRIVING ON A CITY STREET WITH THE CAR SHAKING, I WAS SCARED TO TAKE THE HIGHWAY BUT THAT WAS MY ONLY WAY HOME, AND THE LOUD ENGINE NOISE AND SHAKING CONTINUED. ON DEC 7, 2020, I TOOK MY CAR BACK TO THE DEALERSHIP AND THEY TOLD ME MY CAR WAS INOPERABLE BECAUSE THE CATALYTIC CONVERTER HAD CRACKED AND THE PARTS WERE STILL NOT AVAILABLE TO COMPLETE REPAIRS. THAT DAY THEY PROVIDED A RENTAL/LOANER VEHICLE FOR ME TO DRIVE TO WORK UNTIL THE CAR WAS REPAIRED. ON JAN 13, 2021, I HAD TO SWAP OUT VEHICLES BECAUSE THE PART WAS STILL NOT AVAILABLE TO COMPLETE REPAIRS. IT IS NOW FEB 26, 2021, AND THE DEALERSHIP HAS TOLD ME THAT MY CAR IS FINALLY BEING REPAIRED. THIS ENTIRE TIME, I HAVE CONTINUED TO PAY FOR THE MONTHLY COST OF MY PERSONAL CAR LOAN WHILE NOT BEING ABLE TO DRIVE IT. I ONLY GOT TO DRIVE MY CAR 4 MONTHS BEFORE IT WAS STUCK IN THE SHOP AND I STILL CONTINUE TO PAY FOR MY PERSONAL CAR MONTHLY. THE DEALERSHIP IS NOW ASKING ME TO PAY A "RENTAL" FEE FOR THE USE OF THEIR VEHICLE, AND IT HAS TAKEN 3 MONTHS TO FINALLY REPAIR MY VEHICLE, ALL BECAUSE THE MANUFACTURER GMC/BUICK WAS OUT OF STOCK OF A 2017 CAR PART. I HAVE TRIED TO RESOLVE THIS WITH THE MANUFACTURER AND HAVE A CASE# (SR:9-6454995176). I'VE BEEN IN CONTACT WITH THEM AND THE DEALERSHIP SINCE DEC 7, 2020.
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.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.