2014 Buick Enclave Electrical System Problems

I own a 2014 Buick Enclave experienced two major safety‑related failures. First, while driving on the highway, the vehicle suddenly lost throttle response and triggered a check‑engine light with code P1682 (Ignition 1 Switch Circuit 2). After replacing the ignition relay in the under‑hood fuse box, the issue seemed resolved temporarily. A few weeks later, while stopped at a traffic light, the vehicle displayed “Traction Control Off,” followed by “Engine Power Reduced,” and began shaking violently. The engine warning light turned on, and the car became undrivable in traffic, creating a dangerous situation. A mechanic later confirmed no failure in the replaced ignition relay. The root cause may be a design flaw in the fuse box and its bottom wire‑harness connection, which is known to loosen because the two internal securing screws do not get tighten at all, its freely moving and not securing anything. This potential defect has reportedly affected multiple GM vehicles from 2013–2015, posing serious safety risks and potentially leading owners to spend significant money on repairs without resolving the underlying issue. In Buick Forum, thousands of customers experiencing the same issue, spending thousands and suffering financial implications and severe safety threat just for a careless design and carelessness in addressing a small design issue!!!

The "Service Airbag - Passenger" warning light suddenly appeared on the console of my 2014 Buick Enclave. Once I arrived home, I Googled what the light indicated and I also sorted through mail I had recently received from Buick that notified me of a recall. Convinced that I needed to resolve the issue promptly, I contacted the dealership we purchased the vehicle from and they informed me to come in so they could hook the diagnostic machine to the car to determine the codes. I went into the dealership early the following morning (work order initiated at 8:21AM). I explained the situation again, and was told that they'd perform a complimentary diagnostic test to determine the issue. The service advisor listed "Safety Recall - Driver Front Airbag Inflator May Rupture" [I did notify them that the warning light indicated it was the passenger side airbag]. At 9:00 AM I received a text message "To review the inspection and approve the recommendations": CUSTOMER STATES SERVICE AIRBAG MESSAGE CHECK AND ADVISE [Other]: DIAG, NEED 1.5HR DIAG TIME TO TEST CIRCUITS RELATED TO PASSENGER AIR BAG FOR CODE B0021 PASSENGER SEAT SIDE AIR BAD DEPLOYMENT LOOP. (NEED TOI REMOVE SEAT TO TEST)$389.93 -- yes, I approved. But when questioning why there was a charge for the resolving the recall issue, I was told, "It's a different issue than the recall." Then I was told they'd need to remove the seat to get to the wires/connectors for the airbag and that cost would be $519.90 BYPASS THE AIR BAG CONNECTOR UNDER THE SEAT BY SOILDERING THE 4 PIN CONNECTOR TOGETHER. INTERBNAL FAULT IN CONNECTOR CASUING HIGH RESISTANCE. Also add $44 Shop Charge. The "free recall repair" cost us $957.46 (I did ask for the military discount since this was totally unexpected and immersed with the planned costs for the holidays). I feel like this is unfair and inappropriate to charge customers for a service that should have been covered. I would have never come into the dealership had it not been for the recall

The contact owns a 2014 Buick Enclave. The contact stated that the ignition switch was previously replaced. Additionally, the message "Check Stability System" was displayed. The vehicle was taken to the dealer, where the fuse box and engine struts were replaced; however, the failure persisted. The vehicle was not repaired. The contact also received notification of NHTSA Campaign Number: 23V334000 (Air Bags) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure and a case was opened. The failure mileage was approximately 110,000. VIN tool confirms parts not available.

My Vehicle stalls for no reason. The engine power is redused, stabilitrack, and traction control lights come on. The vehicle stalls in the middle of traffic. The brake and steertng wheel don't work when the engine stalls. The seatbelt and airbag light comes on. I went to get that repaired and the dealer told me that the repair time period had expired.

Engine reduced, traction control, and stabilitytrak lights came on 11/3/2023. Car died on me while I was sitting in traffic. Took car to Firestone on 11/9. They stated car needed oil change and tune up. On 11/17/2023 while in the line at a drive through lights came on again and car died in drive thru. Car was towed back to Firestone. Firestone said it was pulling codes they didn't know and the car needed to go a Buick dealer. Towed car to Bob Brown Buick on 11/24/2023 Bob brown said car just needed a battery. After one hour the car lights popped on again and car died in the middle of the street. Towed car back to Bob brown another diagnosis was completed and was told I needed a catalyst converter. Towed car to Midas and paid another diagnosis. Midas fixed 3 gaskets and sensors. Car died again driving down the street going 35mph almost causing an accident. This electrical problem is very dangerous and unsafe.

Alternator produce too much electricity. Energy travels through Power cable. There is a 200 amp fuse attached to power cable. 200 amp fuse did not function. Sending too much energy two air compressor burning up air compressor. Melting also of power cable. Spitzer Buick of Findlay Ohio told me I was lucky I brought it in when I did "potential fire". Power cable is made in China according to the tag that's attached to the power cable.

Stabilitrack continues to cause problems with the car. I was traveling 60 mph and the stabilitrack and check engine light reduce engine power and car is unable to drive over 40 mph. This is a serious concern when on the highway. When this issue is tripped the car shakes and runs roughly. This car continues to have air bag relay or electrical issues even after fixing the seat belt harness which was recalled. This has been repaired by the dealership no less than 3 times and it feels as we are replacing parts which do not fix the issue. Having the car slow and limp home on a highway is dangerous and happens without warning. The dealership dismissed the airbag light and the second look says repair is needed for safety. So frustrating GM.

TL* THE CONTACT OWNS A 2014 BUICK ENCLAVE. WHILE DRIVING APPROXIMATELY 15 MPH, THE ENGINE STARTED TO LOSE POWER. IN ADDITION, AN UNKNOWN WARNING INDICATOR ILLUMINATED WITH A MESSAGE STATING THAT THE VEHICLE SHOULD NOT BE DRIVEN. THE CONTACT DROVE HOME AND HAD THE VEHICLE TOWED TO JOHNSON CADILLAC (LOCATED AT 1122 WALTON WAY, AUGUSTA, GA 30901, 706-955-7066). THE DEALER DIAGNOSED THAT THE SWITCH CIRCUIT REGARDING THE IGNITION HAD FAILED AND THE UNDER HOOD FUSE WAS LOCKED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND PROVIDED A CASE NUMBER. THE FAILURE MILEAGE WAS 57,629.

VEHICLE WARNING LIGHTS COME ON RANDOMLY - AIRBAGS, CHECK ENGINE, ABS. THEY WILL LIGHT DURING DRIVE TIME, THEN BLINK OUT FOR NO APPARENT REASON. INSTRUMENT LIGHTING MAY OR MAY NOT LIGHT WHEN VEHICLE IS STARTED, AND INSTRUMENT CONSOLE AND/OR ENTERTAINMENT CONSOLE WILL NOT FUNCTION WHEN UNLIT. AGAIN, THIS HAPPENS RANDOMLY, AND OFTEN RESOLVES JUST AS RANDOMLY. HAVE HAD VEHICLE INSPECTED BY DEALER WITHOUT ANY ISSUES IDENTIFIED. ISSUES HAVE BEEN ONGOING FOR A NUMBER OF YEARS. THEY CAN OCCUR WITHOUT REGARD TO VEHICLE BEING IN MOTION.

POSSIBLE ELECTRICAL SHORT? FUEL GAUGE DROPPED OVER AN EIGHTH OF A TANK WHEN JUST FILLED IT UP AND DROVE 2 MILES HOME. NEXT TIME I STARTED IT UP IT DISPLAYED THE AFOREMENTIONED. HAS DONE THIS A FEW TIMES NOW. ALSO SERVICE AIRBAG LIGHT HAS COME ON INTERMITTENTLY PRIOR TO FUEL GAUGE ISSUE AND NOW IS ON EVERY TIME. CALLED BUICK AND THEY ACKNOWLEDGE THAT IT HAS BEEN A PROBLEM FOR THAT MODEL AND EVEN YEAR JUST NOT MY VIN. PERHAPS EXPANSION OF VEHICLES AFFECTED??? 77,000 MILES

TL* THE CONTACT OWNS A 2014 BUICK ENCLAVE. WHILE DRIVING 35 MPH, THE VEHICLE LOST POWER, BUT WAS ABLE TO RESTART. THE VEHICLE WAS TAKEN TO DICK WICKSTROM CHEVROLET (555 E IRVING PARK RD, ROSELLE, IL 60172, (331) 642-7659) WHERE IT WAS CURRENTLY WAITING TO BE DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 55,000.

TL* THE CONTACT OWNS A 2014 BUICK ENCLAVE. WHILE DRIVING 60 MPH, THE VEHICLE STALLED AND THE CHECK ENGINE INDICATOR ILLUMINATED. THE CONTACT HAD TO PULL THE VEHICLE OVER TO THE SHOULDER OF THE INTERSTATE. THE CONTACT STATED THAT THE FAILURE OCCURRED AT ANY GIVEN TIME. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THERE WAS TERMINAL TENSION AND CORROSION ON THE FUSE BLOCK. THE VEHICLE WAS REPAIRED. THE DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND DID NOT ASSIST. THE FAILURE MILEAGE WAS 95,000.

FOUND THE CAR RADIO ONE MORNING STARTED IT AND THEN THE IT PERIODICALY TRIED TO START..

WHILE IN MOTION VEHICLE CHECK ENGINE LIGHT WILL COME ON WITH THE FOLLOWING MESSAGES. STABILITRACK OFF, TRACTION CONTROL OFF, ENGINE POWER REDUCED. CAR WILL NOT ACCELERATE ABOVE 40 MPH. CAR WILL SLIGHTLY SHAKE WHILE THIS HAPPENS. CAR WILL SOME TIMES ALSO SHUT OFF COMPLETELY AND NOT RESTART UNTIL CODES HAVE BEEN CLEARED. THIS HAS HAPPENED ON SEVERAL OCCASIONS STARTING IN FEBRUARY 2017. I HAVE BEEN TOLD IT NEEDS A NEW WIRING HARNESS, NEW POWERTRAIN CONTROL MODULE, NEW FUSE BOX DUE TO WATER INTRUSION, WATER IS STATED TO COME FROM CRACKED WINDSHIELD BUT WINDSHIELD HAS BEEN REPLACED BEFORE AND PROBLEM PERSISTED. FUSE BOX HAS BEEN REPLACED. PCM AND IGNITION SWITCH HAVE BOTH BEEN REPLACED. GIVES CODE P1682 WHICH IS IGNITION 1 SWITCH CIRCUIT 2 CODE. TWO DOCUMENT #S HAVE SHOWN UP WHEN RUNNING DIAGNOSTIC CHECK (4583190 AND 4184289)

SERVICE SIDE DETECTION SYSTEM ERROR DISPLAYED ON DRIVER INFORMATION CENTER AT 49,300 MILES. BOTH RIGHT AND LEFT SIDE OBJECT SENSORS ARE BAD DUE TO WATER CONTAMINATION. HAD NEAR MISS ON ROUTE 90 IN ERIE PA DUE TO BLIND SPOT DETECTION NOT WORKING. HAD TO RESCHEDULE APPOINTMENT AT BURDICK BUICK DUE TO DEATH OF FATHER WHEN VEHICLE HAD 49,800 MILES ON IT. DUE TO TRAVELLING FOR DEATHA ND FUNERAL, VEHICLE HAD 50,1020 MILES AT TIMNE OF APPOINTMENT. GM / BURDICK WILL NOT COVER REPAIRS AT 100% UNDER WARRANTY DUE TO MILEAGE BEING OVER BY 1,000 MILES.

JUST BOUGHT 2014 BUICK ENCLAVE - NICE CAR, BUT DAY AFTER, REAR POWER LIFTGATE BECAME INOPERABLE WITH REMOTE, DOOR TOUCH PAD, AND CONSOLE SWITCH. HOT WEATHER 80+ DEGREES. FUSE IS GOOD. WILL NOT OPEN MANUALLY AND THERE IS NO MECHANICAL WAY OF OPENING THE DOOR FROM THE OUTSIDE. NO WAY TO OPEN DOOR IN AN EMERGENCY. DOES NOT FUNCTION AS OUTLINED IN OWNERS MANUAL, EITHER MANUALLY OR ELECTRICALLY. OWNER'S MANUAL HAS CONTRADICTORY OPERATING INSTRUCTIONS.

IN 2016, AND AGAIN IN 2020 AFTER THE DEALER FIRST FIXED THE ISSUE, WHILE DRIVING AT HIGH SPEEDS, ON HIGHWAYS, ALSO IN THE RAIN, AGAIN AT A STOP LIGHT, THE VEHICLE SUDDENLY DECELERATED, CAUSING THE POTENTIAL FOR A VERY SERIOUS ACCIDENT. THE WARNINGS THEN DISPLAYED ON THE DASH INCLUDED REDUCED ENGINE POWER, SERVICE STABILITRAK, SERVICE TRACTION CONTROL, AND TRACTION CONTROL OFF. THE VEHICLE ONLY THEN DROVE AT SLOW SPEEDS, SPUTTERED AND JERKED, AND FELT LIKE IT MIGHT STALL. WHEN ABLE TO PULL OVER, AT TIMES TURNING OFF THE CAR REVERSED THE PROBLEM. SOMETIMES THE CHECK ENGINE LIGHT WAS ON, SOMETIMES IT WASN'T. SOMETIMES IT WOULD DRIVE FINE AND THEN OUT OF NOWHERE, IT WOULD HAPPEN AGAIN. IN 2016, THE DEALERSHIP HAD A DIFFICULT TIME FINDING THE ISSUE. AFTER SEVERAL DAYS OF DRIVING IT, THEY IDENTIFIED THE PROBLEM AS A FUSE BOX ISSUE AND REPLACED THE FUSE BOX. THIS SEEMED TO FIX THE ISSUE UNTIL IT HAPPENED AGAIN IN 2020 WHILE DRIVING. ON A ROAD TRIP, IT HAPPENED WHILE ON A HIGHWAY, AGAIN AT A RED LIGHT, AND WHILE ON A HIGHWAY AGAIN. EACH TIME, WE PULLED OVER, TURNED THE CAR OFF FOR A WHILE. ONE TIME IN PARTICULAR, THE ISSUE DIDN'T GO AWAY AFTER TURNING THE CAR BACK ON.

SMOKE CAME OUT INSIDE ON THE FRONT PASSENGER VENT, FIRE MELTED THE VENT COVER. TOOK THE GMC / BUICK DEALERSHIP, THEY SAID THEY CANNOT FIND THE SOURCE OF FIRE, SUGGESTING FIRE CAUSE IS EXTERNAL SUCH AS REFLECTION FROM THE SUN. DRIVER DOES'T SMOKE AND THERE'S NOTHING I CAN FIND IN THE VEHICLE THAT MIGHT HAVE CAUSE THE REFLECTION SUCH AS A MIRROR OR ANY SHINY OBJECT. THIS HAPPENED WHILE THE VEHICLE IS IN MOTION, CITY STREET DRIVING. VEHICLE TRAVELED APPROXIMATELY 2 MILES FROM THE HOUSE AT 8 IN THE MORNING. OUTSIDE TEMPERATURE AROUND 50'S DEGREES. I THINK THE PROBLEM MIGHT BE ELECTRICAL. THE AMOUNT OF SMOKE AND BURNING SMELL IN THE VEHICLE MADE IT VERY UNSAFE TO DRIVE IT.

2014 BUICK ENCLAVE. CONSUMER STATES THEY TRIED TO GET THE REPAIRED, BUT THE PARTS WERE NOT AVAILABLE. *TA

TL* THE CONTACT OWNS A 2014 BUICK ENCLAVE. WHILE DRIVING APPROXIMATELY 45 MPH, THE VEHICLE JERKED AND THE CHECK ENGINE WARNING LIGHT ILLUMINATED. THE VEHICLE FAILED TO ACCELERATE AFTER MULTIPLE ATTEMPTS. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THERE WAS A MISFIRE CODE. THE VEHICLE WAS NOT REPAIRED. THE CONTACT RECEIVED A NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 14V614000 (ELECTRICAL SYSTEM); HOWEVER, THE PART TO DO THE REPAIR WAS UNAVAILABLE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 14,000.