Other Fuel System Pump problems of the 2008 Buick Lucerne

Fuse box (rear) 2008 Buick Lucerne cxl. Fuel pump relay burns fuses out quickly. The fuse box located under the back seat has been having issues of burning where the fuel pump relay is located. It then in turn shorts out the fuse box which keeps needing to be replaced. This is a safety issue as it catches fire under the back seat. Fuse box has been replaced before and continues to have issues and melts, causing the vehicle to die in mid traffic, does at stop lights or even just parked and running it dies out and smells like burning plastic. The fuse box has caught fire several times. The issue has been confirmed by several mechanics and dealerships. Also there is a history of electrical problems with the rear fuse box in carfax. There was no warning, and now the check engine light is illuminated. We bought the vehicle last year in June of 2024. There seem to be no problems at the time until shortly after we had bought the vehicle. Turns out there's a long history of electrical problems involving the rear fuse box with this vehicle. I have uploaded screenshots of the car report on this vehicle. There are more complaints.

When I first bought the car over a year ago there were 3 different occasions that my car would not start so I contacted the dealership that I bought it from and they explained to me that it was a reoccurring problem with that model for the fuel pump relay to go out and after a couple times of it going out it would ultimately fry the fuse and relay block and it would need to be replaced so that is what they did at the dealership and within they year that I have owned it I have replaced the fuel pump relay 3 times and driving to the parts store last week the car just died in the middle of the street and has not started since. I was told it was due to the hinge on the seat rubbing the side of the fuse and relay box specifically the fuel pump relay that is the cause of the fuse and relay block to short out.

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.

Car cranked but does not start. Just replaced the fuel pump relay with oem and fuel pump. Worked. One day later, doesn't work. The fuel pump relay was burnt. Seems to be a common problem in the chat boxes for this car. I was told there is a tech new bulletin on this.

Tl- the contact owns a 2008 Buick Lucerne. The contact stated that while operating the vehicle a burning plastic odor was present inside the vehicle. The vehicle was taken to the local mechanic who indicated that the fuse box located under the rear seat was hot to the touch and the relays inside had milded causing the fuel pump to over heat and fail. The vehicle was not yet repaired. The local dealer courtesy Buick located at 7 auto center dr. Louisville ky was notified of the failure. The manufacturer was not contacted. The failure mileage was 70,000. Jft.

Tl- the contact owns a 2008 Buick Lucerne. The contact stated that while driving for over an hour, the contact attempted to restart the vehicle, the fuel pump fuse had burned out. There were no warning lights that altered the contact of this failure. The manufacturer had been notified of the failure, the contact was given a case number(9-5583355801) and was told to take the vehicle to a local dealer to have the vehicle diagnosed. The vehicle had yet to be repaired. The failure mileage was approximately 119,000. Jo.

Tl- the contact owns 2008 Buick Lucerne. The contact stated that when attempting to start the vehicle would crank, but, their was no fuel being transferred to the engine in order for the vehicle. The contact had the vehicle towed to a certified mechanic who diagnosed that the fuel pump and the fuel relay both failed and needed to be replaced. The contact then had the vehicle towed to the dealership (borcherding Buick GMC located at 9737 kings auto mall rd cincinnati, OH 45249 phone number: 866-666-6291) who further diagnosed that the failure was due to an overheating of the electrical fuse box which then burned the relay. The vehicle was repaired. The contact stated that about 3 days later the failure reoccured. The manufacturer was made aware of the issue and stated that due to the vehicle no longer being covered under the special coverage that they were unable to provide a repair. The approximate failure mileage was 55,000. Gl.

Car has gone through 3 fuel pump relay fuses in 3 months last one started on fire just from starting vehicle.

In the last month and a half my 2008 Buick Lucerne has burned up six fuel pump relays it keeps melting the relays and the fuse block I believe this to be a safety hazard as it could catch on fire this should definitely be recalled.

Tl-the contact owns a 2008 Buick Lucerne. The contact stated while driving at an unknown speed, the vehicle stalled with no warning. The vehicle was unable to restart and towed to a truck stop. The contact stated that upon investigating the failure, discovered that the fuel pump relay was melted and burnt. The contact stated that prior to the discovery no smoke or fire was noticed under the rear seat where the fuel pump relay was located in the fuse box. The contact stated he purchased and replaced the part himself. The vehicle was able to start and the vehicle was driven to the contact's residence. The vehicle was not taken to an independent mechanic or dealer for diagnosis or repairs. The manufacturer was not made aware of the failure. The approximate failure mileage was 211,000. Aa.

Fuse box under the seat overheats and burns out fuel pump relay along with the fuse box. Unsafe if it happens while driving.

Experienced a crank no start on my 2008 Buick Lucerne, did some research to find this make/model/year has a long history of issues with the rear electrical center due to the placement under the back seat. The fuel pump relay fuse was extremely burnt and noticed the fuse box was melted near the relay fuse. Brought my car to the local Buick dealership and they notified me a 10 year "special coverage" was available on this car but I was never notified of the issue. I am the 2nd owner of this vehicle. Ended up having to pay for an entire new rear electrical center and the labor to replace it (~$700). I called gm customer service and they said they wouldn't be able to do anything about it. If the electrical box is being burned and it's directly under a seat I fear this is a major safety concern. I believe this should have warranted a recall and it absolutely should be required for gm to notify the current owner of the vehicle for this issue.

Car wouldn't start checked fuse panel and fuel pump relay terminal is melted upon further research this is a common occurrence in the 2008-2011 Buick Lucerne models caused by the panel being directly under the rear seat bracket. Bracket applies pressure to panel lid which intern pushes and applies pressure to fuel pump relay gm recommends replacing relay with low profile style relay and cutting seat brackets. If this is such a know issue and gm recommends these modifications why is this not a safety recall? if the terminal is melting and burning like that this could cause a fire directly under a foam seat in the rear of a car and in my case directly under my children's car seats!!!!!!!!! I have to replace the entire fuse panel due to the melted contacts with estimate repair costs of over $300 for something that could be prevented by gm doing the right thing and fixing their problem!.

Tl the contact owns a 2008 Buick Lucerne. On several occasions, the fuel pump relay became overheated and melted. The contact was concerned that a fire could occur due to the placement of the relay. The contact was able to remove and replace the fuel pump relay; however, the failure recurred. An unknown dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was notified. The approximate failure mileage was 135,000.

"takata recall"relay to fuel pump in fuse box under drivers side rear seat. Keeps melting (relay and fuse box) leaving an electrical fire smell in car. This is the 2nd box and fuel pump to be replaceed in less than 2 years.

Crank no start. Back seat housing was pushing against fuse box in backseat chushion causing fuel relay to not work. Relay was damaged as a result. Fuel pump was also damage.

The car shut down and will turn over but won't start again the relay for the fuel pump is melted and there is no voltage going to the fuel pump fuse in the fuel box under the back seat of the vehicle this should be a recall due to a fire could start or the vehicle could shut down at any moment and causing a accident and or death.

Tl the contact owns a 2008 Buick Lucerne. The contact stated that the vehicle failed to start without warning. The vehicle was not taken to an independent mechanic or dealer for diagnostic testing or repairs. The contact researched the failure online and found complaints relating to the fuel pump relay being burnt. The contact removed the fuel pump relay and noticed that it was burnt. The manufacturer was not made aware of the failure. The failure mileage was approximately 81,000.

Fuel pump relay burnt up it is under back seat repair shop said the car would have burnt up completely if continued my little babies ride in back seat as required by law I would not get them out in time if the car on fire under them1 help help.

My Buick has been constantly breaking down and every mechanic has told me the same problem. It is the fuel pump and the fuse box under the seat. I never thought that I would have any problems since buying this car in 2016. But, I have had numerous problems and all I see are recalls on my Buick. Everytime I call in to complain and ask about the recall its always something new and that you guys can't do anything. This was my first purchase for my 21st birthday and I never want a Buick ever again. If there is someone that could help me regarding my fuel pump and fuse box please contact me and maybe you could do better and send me the parts to fix my car. This is ridiculous and I hope someone could contact me right away.

Fuel pump relay burned out twice. Scorch marks from serious overheat possibly fire on bottom of rear seat. Car stops in middle of road when fuel pump relay appears to pop loose shutting off fuel to engine. Have to press and wiggle relay to restart car. Possible bad connection in fuse box under rear seat. . Recommend making manufacturers be prohibited from installing batteries and electrical fuse box from inside passenger compartment. High fire hazard in case of accident!!!.

Lost power while driving 65 mph on highway which caused power steering and brakes to become hard to use. I took it to mechanic and found that the fuel pump relay had over heated causing the fuel pump to stop. I looked on recalls on the internet and saw where this has become a common problem with these cars and that general motors refuses to issue a recall. This is a very danervous condition and needs to be corrected.

Engine stalled after starting and driving about 20 yards in a parking lot. Then would crank but not start and had burning smell inside car. Had towed to dealer and they found a melted fuel pump relay and fuse box located under rear seat. They said there was a potential fire hazard if didnt replace fuse box too. Car had 106,079 miles at time.

Car would crank over but would not start. Had fuel pump and burnt relay replaced and and an hour later the car fuel relay failed due to overheating.

The contact owns a 2008 Buick Lucerne. The contact stated that after shutting the vehicle off, the vehicle would not immediately restart. While inspecting the vehicle it was discovered that the fuse box and fuel pump had melted. The cause of the failure was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 125,000.

Fuel relay burnt so replaced fuel pump and relay and my brand new relay just burnt up while sitting in driveway my wife was driving the car when car stopped as she was leaving the parking lot of a friends home where I changed the fuel pump and found out relay was burnt and now it's melting relays.

Fuel pump shorts out and melts the fuse box this was with the car parked in the driveway could be a fire hazard if this happens you lose all control of the car and makes it a death trap.

The contact owns a 2008 Buick Lucerne. The contact stated that the vehicle had an abnormal burning smell and would not operate. In addition, the cruise control did not operate. The failure occurred without warning. The vehicle was taken to the dealer where it was diagnosed that the fuse box overheated and melted, which caused the fuel pump and various other electrical components to malfunction. The technician diagnosed that the fuel pump and fuse box needed to be replaced. The vehicle needed to be recalibrated. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 92,000.

Having a problem with the car not starting. It was stationary in the garage. Had it tow to garage. They diagnosed it was a fuel relay burning up. A new relay did start the car. We took a short trip out of town and the car stopped running. . . Left us stranded on the highway. The relay gave out again. A mechanic will now look into the fuel pump replacement. And electrical box under the seat.

We were out of town when car failed to start, not battery related. Had to be towed to service center where they diagnosed, inspected, and replaced the fuel pump relay. On 10/01/2015, 2000 miles later similar incident except this time my local mechanic. He cleaned all cavities, applied dielectric grease, checked the fuel pump amperage at 7. 5, tightened all relay contacts and replaced relay. Bad relay had scorch marks around several pins. On 10/07, 500 miles later, same scenario except this time replaced fuel pump module. On 10/10, again no start, similar, symptoms. Mechanic came to my house on 10/12, could get car to start after several tries, testing and manipulation of components , but immediately shut it down since relay was very hot. Concerned over safety, had to replace the whole module. Replacement module was definitely an upgrade to original and was such because of, I understand, the failures experienced with the originals and concern over starting a fire. I now understand that several fires resulted from this problem. Fortunately, although tremendously inconvenienced both in time and expense, no one in our family was injured nor were we the cause of any accident which on the highway could have been disastrous.

The fuel pump relay overheated and melted in the fuse box. I had to have the relay and fuse box replaced. The mechanic told me that the fuse box could have started a fire. He told me to google the problem with my car because hundreds of other car owners have had the same problem. Sure enough I did just that and I saw hundreds of people with the same complaint about this model car. Gm needs to be held accountable. Are they waiting until somebody dies first before they acknowledge the problem of the fuel pump relay and the fuse box? btw I had to replace the fuel pump.

When ready to leave work the vehicle would not start. Determined the fuel pump was not operating. Replaced the fuel pump and the vehicle still would not start. I found the fuel pump relay was the ultimate cause of failure. After replacing this relay two other times I decided to look further into the cause. I dismantled the fuse box to find it was not complete inside. The fuse box is filled with female to female couplers to connect the bottom wiring harness to the fuses. The fuel pump relay should have four of the couplers installed in the fuse box. There are only three installed. The male pins are long enough to touch and make contact. They will eventually overheat. This is a manufacturing defect and a fire hazard; as many people have had the issue. Buick still has not issued a safety recall and refuses to actually investigate the reason this is happening. The average consumer is being hit wit a $400. 00 fuse box and $600. 00 fuel pump replacement. I actually have since installed my original fuel pump. The replacement pump did not have a sending unit for the fuel gauge. Why are the dealers replacing probably perfectly fine fuel pumps. This has become a racket.

The contact owns a 2008 Buick Lucerne. The contact started the ignition and a few moments later the engine stalled. The contact was a certified mechanic, who replaced the burned fuel pump relay switch. The failure recurred twice and the vehicle was repaired each time. The manufacturer was not notified of the defect. The approximate failure mileage was 60,000.

My car drove perfectly fine in the morning. Early afternoon I went to drive the car and although it cranked, it did not and would not start. I took it the dealer who informed me that the fuel pump pulled too much amperage, causing the relay and the fuse box to burn. He stated I was lucky the car did not catch on fire. He further advised me that I had to change all three parts at a cost of over $1600!! I did further research and discovered that this is a known and common problem with the 2008 Buick Lucerne. I am amazed that I was not advised of this potential life threatening problem and that even with the knowledge, gm did not issue a recall. I have asked gm to pay for the fixing of this problem, but thus far there has not been any decision as to what they will do. I need gm to first pay to fix the problem, and second to issue a recall before someone gets killed.

Purchased vehicle 4/2/12. 6/30/12 car would not start. Full power and crank but would not engage. Car towed and diagnosed as fuel pump/relay. The relay was melted. Repaired without incident. July 23,2012 car repeated. No start. Car towed again and relay is melted again. Researching it seems to be a common event occurring in 2008 v8. Mechanic has determined it to be an electrical problem stemming from fuse and amps being delivered to relay.