There are 8 owner-reported electrical system complaints for the 2017 Buick LaCrossein NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The amplifier stopped working and all the sound comes through the amp including but not limited to seatbelt, door ajar, rear seat reminder, blinkers, back up sounds, and any and all sounds that the car my make for any safety features, onstar features, radio, Bluetooth, the list goes on.
Intermittent failure to start All electrical components failed to operate after total shutdown while at a stopped traffic light. After being towed to dealer it did start on its own.
Vehicle loses power every gmc vehicle I have owned (3) seen to have this issue throttle pedal position sensor while driving on the interstate vehicle speed drops to reduce engine power which is very scary and dangerous
TL* THE CONTACT OWNS A 2017 BUICK LACROSSE. THE CONTACT STATED WHILE DRIVING ABOUT 35 MPH, WITHOUT WARNING THE VEHICLE STALLED. THE VEHICLE WAS TAKEN TO FLOW COMPANIES OF FAYETTEVILLE (1945 SKIBO RD. FAYETTEVILLE, NC 28314) BUT WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 1,345.
AT A FULL STOP, THE ENGINE AUTO STOP SHUTS THE ENTIRE VEHICLE DOWN. VEHICLE MUST BE RE-STARTED AND ALL FEATURES LIKE RADIO, CLOCK ETC. RETURN TO THE FACTORY SETTINGS AS IF THE BATTERY HAD BEEN DISCONNECTED. ONCE THIS HAPPENS, I'VE NOTICE THE ENGINE AUTO STOP DOES NOT WORK FOR AN EXTENDED PERIOD OF TIME. THE VEHICLE IS A 2017 MODEL WITH ONLY 17,000 MILES. AT 9,000 MILES THE WATER PUMP HAD TO BE REPLACED.
2017 BUICK LACROSSE. CONSUMER WRITES IN REGARDS TO DEFECTIVE ENGINE CONTROL STOP/START SYSTEM. *LD *TR
ALL 4 WINDOWS IN THE VEHICLE GO DOWN WHEN THE DRIVER AND KEY FOB ARE NO WHERE NEAR THE CAR. ONLY 1 TIME HAS THIS HAPPENED WHILE THE DRIVER AND KEY FOB HAVE BEEN IN THE CAR AND THE DRIVER WAS NOT TOUCHING THE FOB. IN THIS CASE THE DRIVER PUT UP THE WINDOWS, OPENED THE DOOR, DURING WHICH THE WINDOWS WENT BACK DOWN. ALL OTHER INSTANCES THE WINDOWS WENT DOWN IN VARIOUS LOCATIONS WITH NO COMMONALITY (MY PARENT'S HOUSE WHILE WE WENT SHOPPING, THE GYM, WALMART.) THIS HAS OCCURRED I BELIEVE 6 TIMES OVER 3 MONTHS. THE VEHICLE WAS PURCHASED APRIL 2017 AND HAS UNDER 11,000 MILES. TWICE THIS HAS OCCURRED AND DURING OR IMMEDIATELY FOLLOWING A RAINSTORM. ONCE CAUSING EXTREMELY SOAKED SEATS AND I DON'T KNOW HOW THE INSIDE ELECTRONICS, SUCH AS RADIO AND GPS WERE NOT RUINED. THE FIRST TIME MY CAR WAS LOADED WITH OVER $500 IN TOYS AND THANKFULLY NONE STOLEN.
GEARS OF TRANSMISSION ABRUPT AND HARD CONSTANTLY FLASHING SOME KIND OF SERVICE TRANSMISSION JERKS ON AUTO STOP BEEN HAVING PROBLEMS SINCE I GOT IT STARTING AT ABOUT 10000 MILES NOW HAS 48000 MILES
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