Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2000 Buick Lesabre owners, lightly cleaned up (personal details are redacted by NHTSA).
There was a clicking sound on the right passenger side for about 30 seconds coming down my driveway and then it stopped. I thought maybe a small tree branch got stuck in my wheel well, so I continued onto the highway and drove about 6 miles and stopped at an animal shelter. White smoke started to come from under the car so I popped the hood and got out just as black smoke started and as was going to open the hood the flames were coming out from under the hood and someone used two fire extinguishers and then two water hoses to put out the fire. The car is a total loss and I don't understand what happened, because it was in excellent condition. Someone at the scene thought it was an electrical problem. The car had been in excellent condition and very clean under the hood. And I had it serviced regularly.
I had problem with windows not rolling up and down. After I took my Buick to pep boys 3325 124th ave nw coon rapids mn electric mechanic found out that my window power switch is damaged after rain storm. Later I experienced the following problems with vehicle: 1 strange engine noise while running 2 pushing forward once release foot from brake. Pep boys mechanic looked at all these problems and told me everything looks OK but I need to get engine diagnostic done with pep boys. I got schedule for that. Meanwhile I ended up in car traffic problem because of fire of my vehicle.
As I was driving my Buick Lesabre 2000 my windows lock up on me it was a very hot summer so the electrical windows with no go up and down. The engine is bad. 1490000 miles. Electrical system is problems. The car wiring is loose and can be a dangerous. I tried to pull window down and repair its manually frozen with no power. My seat are uncomfortable with hard iron wire.
Tl* the contact owns a 2000 Buick Lesabre. While driving 35 MPH, the vehicle lost power and would not restart. In addition, the low fuel indicator illuminated. The vehicle was towed to an independent mechanic and repaired, but the failure recurred. The contact was unaware of the mechanic's diagnosis. The local dealer was not contacted. The manufacturer was contacted and did not assist. The failure mileage was 98,000. Consumer stated it would happen at any speed and had nothing to do with fuel gauge. Car was fixed replaced the engine harness connector. Updated 11/20/18
Tl* the contact owns a 2000 Buick Lesabre. The contact stated that the electrical system in the vehicle became inoperable. The contact stated that the security and engine warning indicators illuminated. The failure was persistent. The vehicle was taken to an independent mechanic, but the cause of the failure could not be determined. The contact stated that the bracket module and coals were replaced. The manufacturer was not notified of the failure. The failure mileage was approximately 137,000.
On two occasions so far in 2018, my Buick engine would start itself. Once when I closed the glove box and another time when I closed the passenger door. Both times the ignition key was absent and the car was stationary. My guess is ignition switch. [redacted] - mechanical engineer & college auto instructor.
I turn the ignition over didn't it did not even start yet a loud went boom and up under the hood was blazing with fire than my doors locked I could not get out I had to kick the opposite side and then I got out I had to call sleep fire rescue squad the fire was so bad it was going up under my carport and almost caught my roof on fire and almost did and did a little bit
While driving at highway speeds a vehicle started to back out of a driveway. When I attempted to honk my horn, it would not work. This created a very hazardous condition for me and the occupants of the car! I have checked both the fuse and the horn relay and find no defects. The horn works only intermittently at best and is not reliable in a dangerous situation.
Tl* the contact owns a 2000 Buick Lesabre. The contact stated that the vehicle failed to start. After several attempts, the vehicle was able to start. The failure recurred multiple times. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 94,000. Updated 1/12/16
Consumer states while the car was running a fire started under the hood. Ts prior to fire vehicle lost electric power and warning lights on dash flashed on. Air temp sensor, air intake duct, inner and outer air cleaner assembly replaced. Washer reservoir replaced. PCM repgorammed.
Electrical complaints in other Lesabre years
Frequently asked questions
How common are electrical problems on the 2000 Buick Lesabre?
NHTSA has 87 complaints about the electrical system of the 2000 Buick Lesabre, 13% of the model year's 669 complaints. The component named most often is horn (22 mentions).
Is there a recall for 2000 Buick Lesabre electrical problems?
No. NHTSA lists no electrical system recall for the 2000 Buick Lesabre, though it has 5 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 2000 Buick Lesabre electrical problems start?
Half of the complaints with a recorded mileage happened before about 67,000 miles, and 15% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 11 fires and 1 injury to electrical system problems on this model year. If you notice symptoms, have the car checked before driving further.
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.