What 46 owners told NHTSA about the 2016 Buick Lacrosse Hybrid

Diagnostic trouble code P0442. Evaporative emission system leak detected indicated by check engine light on.

NHTSA ODI 11637143

The contact owns a 2016 Buick LaCrosse. The contact stated while driving 35 MPH, the vehicle lost power steering functionality. The check engine warning light was illuminated. The contact was able to drive to the residence. The vehicle was towed to the dealer, where the failure was diagnosed as a glitch, and the Power steering control module (PSCM) software update was performed; however, the failure recurred. The dealer was contacted and advised the contact that the electric power steering assembly needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 106,000.

NHTSA ODI 11587603

TL* THE CONTACT OWNS A 2016 BUICK LACROSSE. WHILE THE VEHICLE WAS IN REVERSE, THE CONTACT ATTEMPTED TO SHIFT INTO DRIVE, BUT THE VEHICLE FAILED TO MOVE FORWARD. IN ADDITION, WHILE ACCELERATING FROM A STOP, THE VEHICLE FAILED TO MOVE FORWARD. ALL THE WARNING INDICATORS ILLUMINATED ON THE INSTRUMENT PANEL, INCLUDING THE CHECK ENGINE WRENCH, TRACTION CONTROL, AND STABILITRAK. IN ADDITION, THE SPEEDOMETER AND TEMPERATURE INDICATORS WOULD GO TO ZERO. ALSO, WHEN DRIVING 50 MPH, THE RPMS WOULD GO UP AND DOWN. THE CONTACT STATED THAT THE VEHICLE WAS TAKEN TO TEXAN GMC BUICK (18225 EASTEX FWY, HUMBLE, TX 77338, (281) 973-3117) SIX TIMES WHERE IT WAS DIAGNOSED THAT MULTIPLE FAILURE CODES WERE FOUND AND THERE WAS A LOSS OF COMMUNICATION. THE DEALER PERFORMED A CALIBRATION AND CLEARED ALL THE CODES. THE VEHICLE WAS TEST DRIVEN AND ALL THE GAUGES WERE AT ZERO. THE FOLLOWING FAILURE CODES WERE FOUND: U0100-U2099-U0140-U0120 (STORED IN TRANS, BCM, PARK BRAKE, FUEL PUMP CONTROL MODULE, ENGINE CONTROL MODULE FAILING INTERMITTENTLY, REPLACE ENGINE CONTROL MODULE ASSEMBLY, PERFORMED PROGRAMMING AND MOBILIZER LEARN AND SETUP PROCEDURES, CLEAR FAULT, AND ROAD TEST). THE FAILURE RECURRED AND THE VEHICLE WAS TAKEN BACK TO THE DEALER. THE MANUFACTURER WAS NOTIFIED OF THE FAILURES AND PROVIDED CASE NUMBER: [XXX]. THE APPROXIMATE FAILURE MILEAGE WAS 30,000. PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *CC

NHTSA ODI 11242729