general problems of the 2008 Buick Lucerne

Our Buick Lucerne would crank but wouldn't turn over when trying to start after trying to pick up take out. 1) it was suggested to me by a passerby that it sounds like a fuel pump relay. 2)I started to smell something burning. The passerby who happens to be familiar with Buick Lucerne tried to help. He lifted the back seat and showed me the fuel pump relay which was burned. Then he switched the electrick window relay which is the exact same relay switch and the car started. Went immediately to an autozone and bought spare fuel pump relay. Thought that solve the problem, but every 2 to 3 days I'd smell that burning smell. 3) the mechanic I've been going to for 10 years confirmed the issue 4)have not taken to dealer or insurance rep 5)absolutely no visual warning on dashboard. The warning happens when I start smelling the burning odor. Started one and a half months ago. . . .

I went to start the vehicle and it failed to start. I found the fuel pump relay to be badly burned ??. On the 30 pin. The board was melted at the 30 pin spot for the fuel pump relay. I purchased a new relay from napa. I questioned whether they had a new replacement fuel pump. They told me it was not available only through the dealership. My concern was that where the relay was located at there was a possibility of a fire given how badly the relay and board was burned. I replaced the relay and purchased an extra incase this might happen again. To my surprise it happen just days later while I was driving on the expressway. I had to get off the road immediately. Engine died, no power steering. I checked the relay, it was smoking hot. I will have to have the problem resolved. There is no way a relay should ever get hot, let alone that hot. The fuel pump fuse was not effected. Why is the relay not protected from getting so hot. There is definitely a real risk of fire. No one sits in the back seat normally. But, my grandson's. This should not ever happen.

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.

The rear fuse box burned out the fule pump relay because of the metal hooks for the seat hit it and pop the fuse out causing it to ark and burn out. I had to have the fule pump replaced twice as that what I was told at auto shops. Going on line was the only reason I found out about the fuse box. After my car died and wouldnt start, opened the casing and sure enough the fule pump housing was completely burned. So now after replacing two fule pumps my emergency money is gone and who knows how long it will before am able to buy a 400$ fuse box with probably another couple hundred in labor to change it out. All because there was to much metal on the seat hooks.

The fuel pump relay keeps getting hot and burning, causing the car to not start or loosing power while driving. Lost power going up a hill and around curve with no place to pull over. Could have been hit when car died in blind spot in road. Looked it up and other people on line are saying it is the seat clips hitting fuse box causing short circuit in fuse box and damaging fuse box. People said they thought it was fuel pump but still had same problem after replacing fuel pump. A lot of upset people on line saying there should have already been recall on this problem. Have had 2 mechanics look at it. Have bought 3 relays. Afraid to drive car if it will start, fear of loosing power in middle of road and getting killed. Not to mention could cause fire since fuse box and battery are under back seat. . Genius engineer, I'll tell you! don't know if I can ever completely trust this Buick again. Never had anything like this happen to any car I've ever owned. Something needs to be done. Recall recall recall !!!!!!!!!!!!!!.

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.

-the electrical system failed, causing the fuel pump to not work properly due to design flaw in the backseat putting pressure on the fuse box which is located under the backseat. The spot where contact is made to the fuse box, is where the fuel pump relay is. Pressure from the seat bracket (with or without a passenger in the seat) causes the pump replay to not make proper contact with the terminal, therefore causing the power to arc and get so hot that the relay starts smoking, melting the relay, fuse box and surrounding fuses and leaving black scorch marks on the inside of the lid to fuse box and making the car smell like burnt plastic. In addition to now having to purchase multiple replacement relays it has also caused additional electrical issues which resulted in having to replace multiple fuses as well as purchase another battery due to theses issues putting added strain on my battery which caused it to drain and not hold a charge any more. Yes the car and parts are available for inspection. -my safety and the safety of others is at risk due to major risk of catching on fire which could happen while driving and therefore cause an accident, could cause one of my passengers, including my child or myself to be severely hurt/burnt. -yes the issue has been reproduced by many other owners of the same year/make/model as per the hundreds of previous complaints found about the same issue. -no there were no warning lights, signals or messages before the failure. No warning at all.

Fuel supply line at firewall retainer severely rusted, could leak spraying fuel on engine or exhaust causing fire.

Fuel relay went out 2x, the second it almost caught the car on fire. The car filled with smoke. Its located under the rear seat of the car. Called dealership said there was a recall to bring it in, now the dealership is saying the warranty has expired, and wants $1700 to fix. If I'd been driving it would've burned the car, and worse how about if my grandbaby would've been buckled in that spot. The car only has around 80,000 miles on it. The car was in motion. The car is still at the dealership.

Was driving and vehicle started to stutter,hesitate , then total loss of steering brakes didn't work properly. We were on an over pass during rush hour traffic busy intersection. Finally after about 1 hr we made it to autozone limp mode all the way. Purchased coils x 3 , coil ignition module, spark plug wires,spark plugs, camshaft sensor,crankshaft sensor. Then find out it was only a freaking fuse under seat that was burnt and melting away. Not very happy. Gm should be held accountable for knowing about this and not offering to fix it.

The car was parked and would not start had it towed to a repair shop. The repair shop found the fuel relay had over heated and melted the fuse panel under the back seat. I did some research online and found on repair pal that 105 other people had the same problems. Ebay seller has sold 1264 fuse boxes like this another ebay seller sold 275 fuse blocks for Buick and gm cars. Did some more research found problems back to 1996 2006-2011 Buick Lucerne's had issues.

I bought this Buick used a couple of month ago with 87k. I've since driven over 4k miles. I bought this car because it was a big touring car and I needed something reliable and comfortable for longs days on the road. Several hundred miles ago it just wouldn't start in the driveway. Research led me to the fuse board. Checked the fuses and relays found nothing obvious. Car started up a few minutes later. This happened later that day when in another city and then a few more times that day. Almost had it towed but then it started. Now, after almost 1000 miles it gave up the ghost and I found one of the teeth on the relay burned and the plastic partially melted on the relay housing and the fuse panel. Went to the parts store and bought a relay replacement but it didn't do any good. Shopping for a mechanic now. My thinking is I need to get rid of it. I travel a lot throughout the snow belts in NY state and this bothers me it could happen on the highway and effect control. And a fire hazard. Why is gm not recalling this!.

The contact owns a 2008 Buick Lucerne. The contact stated that the vehicle failed to start. The vehicle was taken to a dealer where it was diagnosed that the fuel box failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 135,000.

Gas ,pump and relay stopped working . Replaced pump three times, pump relay once. Car will not start again. Another pump . Number 4. Called gm checked on recall nothing . This all within a two year period.

When my wife was parking the car in a shopping center parking lot, the engine roared (even though she had her foot on the brake) and the vehicle jumped over the curb and struck small bushes and trees in the median between the stein mart and home dept parking lots causing damage to the front grill and driver side front fender. My wife was not injured luckily. Had this event occurred under normal driving conditions somebody could have been seriously injured and or killed depending upon the circumstances. I had a similiar instance about a year ago when the car surged forward while I was stopped at a intersection. My foot was on the brake and I got the car stopped. I continued to drive the car and did not experience any further problems. I thought it might have been a stuck accelerator linkage that cleared. I've since learned the newer vehicles are drive by wire controlled. Their is no direct throttle linkage from the gas pedal. The vehicle is currently at a Buick dealers body shop being repaired. . Their service manager stated they would read the computer codes and use a scan tool to determine what caused the accident. An accident report was recorded by the local police department.