2005 Buick Lesabre problems & reliability
77 owner complaints filed with NHTSA for the 2005 Buick Lesabre. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
3 complaints report injuries (5 injured).
Federal crash records (FARS 2020–2023): 2005 Buick Lesabre vehicles were involved in 64 fatal crashes with 52 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Electrical System → | 25 | 32% |
| Power Train | 8 | 10% |
| Air Bags | 5 | 6% |
| Engine | 5 | 6% |
| Service Brakes, Hydraulic | 5 | 6% |
| Suspension | 5 | 6% |
| Tires | 5 | 6% |
| Exterior Lighting | 4 | 5% |
| Fuel System, Gasoline | 4 | 5% |
| Service Brakes | 4 | 5% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 52,150 miles (middle 50% between 26,865 and 86,750 miles), based on 58 complaints that included mileage.
Complaints by incident year
What owners report
“The contact owns a 2005 Buick LeSabre. The contact stated that while driving at an undisclosed speed, the fuel gauge sensors failed to function as intended. The contact stated that the fuel gauge sensor failed to provide adequate information regarding the fuel level. The fuel warning light illuminated. The vehicle was…”
Wheels · filed Oct 28, 2025
“The transmission rarely slips causing a dangerous situation. I must pull over shift off the vehicle and start it again. *tr”
Unknown OR Other · filed Jan 30, 2021
“The headlights just stopped working. It is not the bulb as the lights come on when I lock or unlock the car using the fob. I was driving down the road and the headlights just stopped working, this was in the middle of the night with no street lights. I just had the car in the shop two months ago for the same problem…”
Exterior Lighting · filed Feb 2, 2020
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Technical service bulletins
530 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2005 Buick Lesabre. The 10 most recent:
This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
PIP5601C · Service Bulletin/Repair Instructions · issued Jul 18, 2025
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
PIT5074R · Service Bulletin/Repair Instructions · issued May 30, 2025
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
PIT5074R · Service Bulletin/Repair Instructions · issued May 30, 2025
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
PIT5074R · Service Bulletin/Repair Instructions · issued May 30, 2025
This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
23-NA-001 · Service Bulletin/Repair Instructions · issued Mar 28, 2025
This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or…
PIP5358D · Service Bulletin/Repair Instructions · issued Feb 20, 2025
This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe…
PIT5074Q · Service Bulletin/Repair Instructions · issued Dec 7, 2024
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8…
PIP4723J · Service Bulletin/Repair Instructions · issued Oct 25, 2024
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician…
PIT5099H · Service Bulletin/Repair Instructions · issued Sep 12, 2024
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician…
PIT5099H · Service Bulletin/Repair Instructions · issued Sep 12, 2024
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
No NHTSA recall campaigns name the 2005 Buick Lesabre in our current data. Recalls may apply only to certain VIN ranges — always confirm with a VIN check.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2005 Buick Lesabre?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 52,150 miles — budget accordingly if the car is approaching that mileage.