1998 Buick Lesabre problems & reliability
400 owner complaints filed with NHTSA for the 1998 Buick Lesabre, alongside 1 safety recall campaign. 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.
7 complaints report injuries (9 injured).
Federal crash records (FARS 2020–2023): 1998 Buick Lesabre vehicles were involved in 23 fatal crashes with 22 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 |
|---|---|---|
| Engine and Engine Cooling | 196 | 49% |
| Fuel System, Gasoline | 70 | 18% |
| Electrical System | 50 | 13% |
| Service Brakes, Hydraulic | 23 | 6% |
| Power Train | 20 | 5% |
| Steering | 15 | 4% |
| Suspension | 15 | 4% |
| Visibility | 12 | 3% |
| Air Bags | 11 | 3% |
| Unknown OR Other | 11 | 3% |
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 69,269 miles (middle 50% between 54,575 and 89,200 miles), based on 171 complaints that included mileage.
Complaints by incident year
What owners report
“The contact owns a 1998 Buick LeSabre. The contact received notification of NHTSA Campaign Number: 04V090000 (Fuel System, Gasoline) however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated…”
Fuel System, Gasoline · filed Jun 15, 2023
“I recently purchased this vehicle used. Upon inspection, I discovered that the brake lines are severely corroded and require replacement. On further inspection, I discovered that the engine cradle, bushings, and fastening hardware are severely corroded as well. The rest of the vehicle is not corroded in any way, not…”
Service Brakes · filed Aug 26, 2018
“Tl* the contact owns a 1998 buick lesabre. The contact stated that the vehicle experienced unintended acceleration without warning. The vehicle was taken to an independent mechanic where it was diagnosed that the engine cradle was severely corroded and needed to be replaced. The dealer was not contacted. The…”
Engine · filed Nov 1, 2017
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- ENGINE COMPARTMENT FIRES
Engineering Analysis EA02030 · opened Oct 22, 2002 · closed Mar 9, 2004 · led to recall 04V090000
- ENGINE COMPARTMENT FIRES
Preliminary Evaluation PE02050 · opened Jun 13, 2002 · closed Oct 22, 2002
Technical service bulletins
53 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 1998 Buick Lesabre. The 10 most recent:
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…
PIP4723F · Service Bulletin/Repair Instructions · issued Jan 14, 2022
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…
PIP4723D · Service Bulletin/Repair Instructions · issued Jan 31, 2020
This informational bulletin provides information for dealers/technicians on Procedures to Unlock Delco Radio with Theftlock.
19NA273 · Service Bulletin/Repair Instructions · issued Dec 2, 2019
This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Technician will need to…
PIC4696E · Service Bulletin/Repair Instructions · issued Nov 22, 2019
This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
17NA073 · Service Bulletin/Repair Instructions · issued Sep 18, 2019
This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Technician will need to…
PIC4696D · Service Bulletin/Repair Instructions · issued Sep 5, 2019
This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
17NA073 · Service Bulletin/Repair Instructions · issued Feb 15, 2019
This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco Theft Lock. Technician will use the radio to get the scrambled code. Technician will need to…
PIC4696C · Service Bulletin/Repair Instructions · issued May 31, 2018
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…
PIP4723C · Service Bulletin/Repair Instructions · issued Sep 20, 2017
This warranty administration bulletin provides policy information with the field action courtesy transportation policy.
17-NA-073 · Service Bulletin/Repair Instructions · issued Mar 15, 2017
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
The 1998 Buick Lesabre has 1 NHTSA recall campaign — recall repairs are free at franchised dealers regardless of the vehicle’s age.
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 1998 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 69,269 miles — budget accordingly if the car is approaching that mileage.