Buick Lucerne stalling problems

Filed Apr 7, 2026 · Fuel system · 70,000 miles · NY

The contact owns a 2009 Buick Lucerne. The contact stated that while driving approximately 65 MPH, the vehicle suddenly stalled. The contact was able to safely drive onto the shoulder, and the tow truck was contacted. The vehicle was later towed to the local mechanic, who diagnosed that the fuel relay had failed. The contact was informed that the relay had failed due to the location under the driver’s side rear seat, and while touching the motor terminal. The contact stated that there was a TSB associated with the failure. The vehicle was not yet repaired. The manufacturer and local dealer were contacted. The failure mileage was 70,000.

Filed Oct 10, 2023 · Fuel system · NE

Bought my car Sept. 2022.Within the first couple of months I started having intermittent problems that seemed fuel related.After some research I found out my car had a TSB that has been out since 2016. With this knowledge I took the back seat out of my car and the problems all stopped.June of 2023 started having some problems that were sort of similar to what I was experiencing before with some power loss, had vehicle taken to mechanic who diagnosed an interlock system problem.I thought maybe that would fix all my problems and put my back seat back. I travel 4 hours once a month to go see my son and only took my car once on that trip because of not being able to have a back seat.Me thinking the interlock fix was the solve all to my problems I put the back seat in and started my drive to go see my son. 3 hours in stop for gas, try to start my car, cranks won’t start, not getting fuel. Called mechanic who just worked on my car, suggested to check my fuel pump fuse and fuel relay, find my fuel relay is melted. Replace fuel relay and pulled the back seat out, car fires right up no problems. Continue hour drive to see my son, picked up my son so had to put the back seat in. Drive about 7 blocks and stop at Walmart, try to start car and same problems as before. Replace Fuel relay, propped up the back seat around the fuse box trying to still make it safe enough for my son to ride back there, no more problems that trip, propped seat left leaning in the back. August-Was driving down the Highway at 65mph with the cruise on, when all of a sudden my car begins to lose power and proceeds to stall with no warning. Lost complete control of steering and had minimal control breaking, had to coast to a stop with no breaks or steering, lucky was on a straight rural hwy, can’t imagine if I was in the city. Seat had fallen up against fuse box fried fuel relay again and the control module. Take to shop for repair, control module, fuel pump replaced NSB complete all at my expense.

Filed Oct 25, 2022 · Electrical · OH

When I am driving my vehicle will just stall. If I do not let my car run for at least 5-10 minutes before I go anywhere it will stall out on me not long after. It has stalled on the highway, even a few times with my 6 year old in the vehicle. After it stalls out a lot of times I have to park it, turn it off, open my door/shut it, then wait for the inside light go out before I try to start it back up. It does start back up after I let the light go out but not everytime. I have sat there for 30 minutes to an hour more than 3 times. Now i do not have control of any of the master controls for the windows or locks. I have to lock my door manually now. I was told that it could be from my ignition switch which I know there was a recall on before. I would like another recall for this issue and for it to be fixed before something not so good happens.

Filed May 13, 2022 · Driver assistance, Electrical · TX

The fuel pump relay kept burning out. And caused the fuse box terminal heat damage. Almost started on fire and started smoking. Vehicle stalled out on the freeway and the Dept of Public safety towed my vehicle off the freeway.

Filed Apr 28, 2022 · Electrical · 70,000 miles · IL

The contact owns a 2010 Buick Lucerne. The contact stated that while the rear seat was occupied, it was raised up on the battery and fuse box, causing the fuse relay to short circuit. While driving, the vehicle stalled without warning. The vehicle was taken to the local dealer where it was diagnosed that the fuse box and fuel pump needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 70,000.

Filed Nov 9, 2021 · Engine · 72,479 miles · KS

The contact owns a 2008 Buick Lucerne. The contact stated while driving approximately 20 MPH, the vehicle stalled without warning. The contact was unable to restart the vehicle. The contact stated there was no warning light illuminated. The vehicle was towed to the residence. The vehicle was inspected by a local mechanic and diagnosed with needing the fuel pump relay to be replaced. The vehicle was repaired however, the failure persisted. The manufacturer was not informed of the failure. The failure mileage was 72,479.

Filed Aug 30, 2021 · Electrical, Engine · MD

1. Fuse box was replaced, yes. 4th repair shop replaced. I say only time will tell for sure. i don't drive every day 2. driving I-95 from VA to MD at speeds of 30+ to 75+ cars driving close behind could have ran into rear causing my car, their car, and multiple other cars to be in major accident with possible multiple deaths. 3. reproduced, no. independent service center, no 4. No. Other - the 4th repair shop inspected vehicle component. 5. No warning lamps. No messages or symptoms, car just stalled and would not start/move and w​hen I tried to start car again car would not start, but had all kinds of warnings lamps lit up. The first time the engine stalled was driving (moving) into entrance of toll booth in Richmond, VA, July 27, 2021 approx. 2:15 pm. additional info: Four (4) times car stalled while driving in traffic without warning, car would not start again had to be towed each time to a repair shop. Three (3) repair shops did not repair the problem. First repair shop charged me approx. $350.00 +- for repairs. PLUS I had to stay over night in hotel costing me approx. $120.00+- Total $470.00 +- Car still had same problem!! Second repair shop did not charge me for repairs, but not sure if any work was done, had to get a car rental to get back to Maryland. s second shop kept car ofr 6 days before working on problem. Car rental cost me $467.27. Total $467.27 Car still had same problem!!! Third repair shop kept car for 5 days, charged me approx. $125.+-, still the car had the same problem. Total $125.00+- Car still had same problem!!!! Fourth repair shop says he found fuse box to be the problem, repair cost me approx $554.00+- Total $554.00 My total expenses are approx. $1,491.20 only time will tell if problem has been fixed, not to mention the extreme emotional stress dealing with delays on repairs and extreme emotional stress driving not knowing when or how car would stall again.

Filed May 10, 2021 · Tires · NV

I've had the sensor to my tire monitor replaced 3 times and it continues to come on and cause my tire light to come on, although my tires are fine. It continues to stall when I'm going into 1st gear or changing gears on the highway. When accelerating my pedal will shake

Filed Apr 29, 2021 · Electrical, Fuel system · 116,000 miles · AZ

Recently replaced fuel pump. After repair, car was still a crank/no start. Replaced fuel pump relay which had obvious burn/scorching evidence, as well as melting around female port on the fuse box. Since then have had to replace 3 other new fuel pump relays due to problem of excessive heat or electrical surge frying the relay. After researching the problem, it was found that the problem is caused by the back seat of the vehicled coming in contact with the top of the fuse box causing the relay to move, causing the relay to work harder to maintain a connection, which in turn creates more current and the resulting heat increase melts the casing in the fuse box and kills the relay. When the relay is compromised in such a way the fuel pump stops operating and the engine gets no gas thus creating a crank/no start if the car is parked or causes the car to stall out if the car is in motion. In reasearching this matter, it is clear that gm has been aware of this situation for over 10 years. There are multitudes of individuals effected by this problem with some of them having smoking or burning issues with the relay. Personally, I have had stall outs while going with the flow of traffic which resulted in vehicle control issues such as braking and steering and excelleration, gm had extended repair period for the issue but failed to notify owners so many were unaware of the repairs or even the issue until the problems occurred. No recall has been initiated by gm even though it is a clear safety issue due to the control issues when stall outs occur and the potential for fires under the seat as the problem progresses. Gm refuses to cover repairs to affected vehicles since the courtesy repair order expired and the vehicles are typically out of warranty. Vehicle involved is a 2008 buick lucerne but the issue effects other gm cars. Gm tsb 15-na-051 for tech directives

Filed Sep 14, 2020 · Electrical · 158,000 miles · TN

Tl* the contact owns a 2010 buick lucerne. The contact stated that while driving at various speeds, the vehicle stalled without warning. Due to the failure, the contact had the vehicle towed to an independent mechanic where the vehicle was diagnosed with a defective fuel pump relay. After receiving the diagnosis, the contact had the fuel pump relay replaced. Despite the repair, the contact stated that while her husband was driving home from the mechanic at a low rate of speed, the vehicle shutoff again without warning. Due to the failure, the contact had the vehicle towed back to the same independent mechanic where it remained in their possession. Upon investigation, the contact linked her failure to the federal safety agency campaign number: 14v355000 (electrical system). The manufacturer was notified of the failure and informed her that there were no recalls on the vehicle. The contact was offered no further assistance. The vehicle was not repaired. The failure mileage was 158,000.