Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2007 Buick Lucerne owners, lightly cleaned up (personal details are redacted by NHTSA).
Veh while driving just cuts off for no reason, speed does not matter. If going fast enough you might be able to cost to the shoulder of the road however there is absolutely no warning it just cuts off. After waiting about 5 minutes you can restart the car but have no assurance that it will keep going. This has happened a total of three times. Once in heavy traffic, and twice when there was enough speed to get the car to the shoulder of the road. The first time was the camshaft sensor and had that replaced and the service man told me there was absolutely no warning for failure. The second and third time no warning but have not found out what the cause s of this problem was. I contacted Buick and there has been no recall for this problem. Got on a Buick forum and found that there are several instances of this happening to other Buick Lucerne's. …
I bought a 2007 Buick Lucerne from (redacted) in memphis,tn.I have had problem after problem.first it was the driver seat that wouldn't move back,then the alternator and battery.next was the motor engine running hot.now it's the transmission it was running fine.now it won't run in drive only gears 2&3.I saw that there was a recall on this in 2009 I don't know if it was fixed then or not because I don't know the original owner.if you drive the car it will run and cutoff in the middle of the street.(very dangerous) .then it will run for a mile or to and do the samething now it's parked .I'm not trying to get hurt or killed in this contraption.I'm already disable I'm not trying to kill myself or get killed in this car.they are dangerous.all need to be recalled they are not top of the line buicks they are a disaster waiting to happen.
67K, power steering leaking, difficulty to steer; 72K, engine torque strut mounts torn, vibrates when moving; 77K, engine oil leaking, valve cover gasket, stationary; 77K, engine oil leaking, front timing chain cover gasket, stationary; 78K, hard to start crank sensor, stationary; 79K, wont start, starter motor, stationary; 79K, trunk leaking when rains, tail light panel seams and internal bumper seam holes, spare tire wheel well filled with water, stationary; engine oil leaks, gaskets, and engine mounts, most likely related; all issues are poor engineering, design, or workmanship!
Tl* the contact owns a 2007 Buick Lucerne. While driving 25 MPH, the vehicle stalled without warning. The ignition key was unable to turn to the on or off position. Additionally, the gear shifter failed to move from the drive position. The vehicle was able to restart after twenty minutes and operated normally. The vehicle was taken to the local dealer (ourisman Chevrolet of marlow heights, 4400 branch ave, marlow heights, md 20748, [phone]), but was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 63,894.
This car just shuts down while driving. This is very serious as you lose your power steering and brakes. It has happened 3 times in the last month. Someone is going to get killed! I took it to mechanic first time he tightened a battery wire. It did start back up but died going down the road and towed it back. He then tightened wire on ignition module. It started and ran a few days and did it again. It now did it a third time. It throws no codes on the car so it is very difficult to diagnose. I have seen numerous other people have this problem. Th
Tl* the contact owns a 2007 Buick Lucerne. The contact stated that fluid was leaking from under the hood of the vehicle. The vehicle was taken to the dealer. The technician diagnosed that the hydraulic fluid was leaking from the front motor mount. No further information was available. The motor mount was replaced and the failure was remedied. The manufacturer was notified of the failure. The failure mileage was 64,893. Updated 7/9/15 updated 07/16/15
Tl* the contact owns a 2007 Buick Lucerne. While the vehicle was undergoing routine maintenance, the mechanic noticed that the upper passenger side dog bone engine mount was fractured and needed replacement. The vehicle was repaired. The manufacturer was notified of the failure. The approximate failure mileage was 75,000. Updated 05/18/16
Tl contact owns a 2007 Buick Lucerne. The contact t stated that the motor mount fractured. The vehicle was taken to an independent mechanic. The technician diagnosed that the motor mount needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was 68,000.
I was driving down street and motor quit running. The motor did start and I continued on my journey. Later that same day, the engine stopped again and would not restart for several minute. After several tries it started. I did not have any more occurrences for several months. I received a notice that my Buick had been recalled, but that parts were not available. In a letter dated September 2014, I was notified to contact my dealer and parts were now available for GM recall 14299. I called the dealer and they said parts were not available and they would call me when they were available. After several weeks, I called and they had the part and scheduled me for nov. 17. I took the Buick in with four keys. They would only fix two keys; so, now I have two fixed keys and two unfixed keys for the car. On December 4, the engine quit on me again and would not restart. …
While driving at 55-60 MPH in 5:00 p.m. Baton rouge, la traffic on joor road, I heard the doors automatically lock, then the engine died, I lost power including steering, brakes, and almost caused a terrible pile-up as my car stopped in heavy traffic. I had no ability to steer, brake, no power. I was at the mercy of god and this dead car, praying that no one was killed. I eventually was able to coast to a stop. Other vehicles were able to move to other lanes, abandoning me to the right hand lane of traffic. I called OnStar and they should have the recording of the conversation, the terror I was in, and their instructions. I have 4 recorded incidences of the repetitive nature of this vehicle malfunction. I can provide details of all incidences, follow-ups with GM, and eventually having to payoff the piece of "junk" at a loss of over $20,000. My last GM purchase. …
Engine complaints in other Lucerne years
Frequently asked questions
How common are engine problems on the 2007 Buick Lucerne?
NHTSA has 22 complaints about the engine & cooling of the 2007 Buick Lucerne, 13% of the model year's 164 complaints. The component named most often is engine (1 mentions).
Is there a recall for 2007 Buick Lucerne engine problems?
No. NHTSA lists no engine & cooling recall for the 2007 Buick Lucerne, though it has 4 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2007 Buick Lucerne engine problems start?
Half of the complaints with a recorded mileage happened before about 68,000 miles, and 11% before 25,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.