What breaks most · 1990 to 1999 model years
Oldsmobile 98 problems by year
Owners have filed 229 safety complaints with NHTSA about the Oldsmobile 98 across model years 1990 to 1999. Three years stand out: 1991 for brakes (hydraulic) complaints, 1992 for brakes (hydraulic) complaints and 1995 for engine and cooling complaints. The quietest years are 1996, 1993 and 1994.
- Years to check closely: 1991, 1992, 1995
- Fewest complaints: 1996, 1993, 1994
- Complaints on file
- 2291990 to 1999, all trims
- Worst year
- 199147 complaints
- Crashes reported
- 216 fires · 24 injuries · 0 deaths
- Typical failure mileage
- 105kMedian where owners gave mileage
- Recall campaigns
- 11Across the years shown
Complaints by model year
Raw filings with NHTSA, not adjusted for how many were sold.
| Model year | Complaints | Crashes | Recalls | Most-reported component |
|---|---|---|---|---|
| 17 | 1 | 2 | Brakes (hydraulic) (4) | |
| 47 | 6 | 2 | Brakes (hydraulic) (18) | |
| 38 | 3 | 1 | Brakes (hydraulic) (15) | |
| 13 | 1 | 1 | Brakes (hydraulic) (3) | |
| 16 | 7 | 1 | Air bags (5) | |
| 30 | 2 | 2 | Engine and cooling (6) | |
| 10 | 0 | 2 | Air bags (3) | |
| 30 | 0 | 0 | Seat belts (15) | |
| 27 | 1 | 0 | Engine and cooling (8) | |
| 1 | 0 | 0 | Fuel system (1) |
What fails on the 1991 Oldsmobile 98
| Component | Share of complaints | Filings | Crashes | Parts for this job |
|---|---|---|---|---|
| Brakes (hydraulic)Brake pads, rotors and calipers | 38% |
18 | 3 | Shop brakes (hydraulic) parts for the 1991 Oldsmobile 98 |
| Electrical systemAlternators, starters and ignition | 17% |
8 | 0 | Shop electrical system parts for the 1991 Oldsmobile 98 |
| Air bags | 15% |
7 | 2 | Check recalls for air bags on NHTSA.gov |
| Engine and coolingRadiators, thermostats and cooling | 9% |
4 | 0 | Shop engine and cooling parts for the 1991 Oldsmobile 98 |
| Equipment and infotainment | 9% |
4 | 0 | — |
| VisibilityMirrors and glass | 6% |
3 | 0 | Shop visibility parts for the 1991 Oldsmobile 98 |
| Powertrain and transmissionTransmission parts | 6% |
3 | 0 | Shop powertrain and transmission parts for the 1991 Oldsmobile 98 |
| Service Brakes, AIR | 4% |
2 | 0 | — |
One complaint can name more than one component, so shares add to more than 100%. "Unknown or other" is NHTSA's uncategorized bucket and is shown but never ranked.
In owners' words
Complaint narratives as filed with NHTSA, trimmed for length.
-
The car has ABS brakes. When applying the brakes the pedal goes to the floor and the car does not stop. It has caused an accident. Please describe. Tt
-
ABS brakes; failure on the brakes, causing the consumer to have a near accident, the brake pedal went to the floor. *ak
-
Coolant warning light came on---a large pool of coolant under car after stopping---inspection of car showed retaining clips were broken, but sensor still in place
How to read this page
Every figure comes from the National Highway Traffic Safety Administration's public complaint database, which holds every safety-related defect complaint filed by owners since 1995. We refresh it monthly and count each complaint once per component it names. Data through September 6, 2026.
NHTSA only accepts safety-related complaints. Rattles, paint, infotainment bugs and other annoyances are under-reported here, so this page is a map of what fails in ways owners consider dangerous, not a full reliability score.
Counts are raw. Use the year-over-year shape and the component mix, not the absolute numbers. Where a component maps to parts we stock, the row links to that category filtered to the year you are viewing. Air bag and seat belt complaints link to the recall checker instead, because those repairs are almost always covered.
Common questions
Which Oldsmobile 98 years have the most problems?
By NHTSA complaint volume, 1991, 1992, 1995 carry the most filings on the Oldsmobile 98. The 1991 alone has 47 complaints, led by brakes (hydraulic).
What is the most common Oldsmobile 98 problem?
On the 1991 model year, the most-reported component is brakes (hydraulic) with 18 complaints. The table above lists the top components for every year.
At what mileage do Oldsmobile 98 problems start?
The median mileage at failure across all Oldsmobile 98 complaints that include mileage is about 105,000 miles. Older model years skew higher; the per-year figure is in the "at a glance" card.
Are these complaints verified?
No. NHTSA publishes complaints as submitted and does not investigate individual filings. Patterns across hundreds of complaints are meaningful; a single one is not.