There are 2 owner-reported engine complaints for the 2014 Buick LaCrossein NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
ENGINE LIGHT COMES ON WHEN AIR CONDITIONER IS ON AND CAR IS STATIONARY. I HAVE NOT HAD A DIAGNOSTIC PERFORMED. ENGINE LIGHT VARIES COMING ON IN MOTION.
TL* THE CONTACT OWNS A 2014 BUICK LACROSSE. WHILE DRIVING 75 MPH, THE VEHICLE LOST POWER WITHOUT WARNING. THE FAILURE OCCURRED ON SEVERAL OCCASIONS AND THE VEHICLE WAS TAKEN TO A DEALER SEVERAL TIMES. IT WAS DIAGNOSED THAT THE SENSOR WAS FAULTY AND NEEDED TO BE REPLACED. THE SENSOR WAS REPLACED, BUT THE FAILURE RECURRED SEVERAL MONTHS LATER. THE VEHICLE WAS TAKEN BACK TO THE DEALER, BUT NO ISSUES WERE FOUND. THE FAILURE PERSISTED AND THE VEHICLE WAS ONCE AGAIN TAKEN BACK TO THE DEALER WERE IT WAS AWAITING DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 42,000.
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 25, 2026