Research · Midsize Cars
1998 Buick RivieraRecalls, problems, MPG & safety
NHTSA lists 0 safety recalls and 29 owner complaints for the 1998 Buick Riviera. Most complaints involve steering (7) and engine (4). The EPA rates it 19 mpg combined.
Combined MPG
19mpg
EPA · 1 version
NHTSA overall
—
Not rated by NCAP
Safety recalls
0campaigns
NHTSA
Owner complaints
29
Top: steering
Fuel cost / yr
$3,150est.
EPA estimate, best version
Safety recalls
NHTSA campaigns for this model year
0 recalls found in NHTSA data for the 1998 Buick Riviera as of Nov 11, 2026.
Data from NHTSA Recalls API · synced Nov 11, 2026NHTSA vehicle page
Owner complaints by component
29 complaints filed with NHTSA · Feb 1999 – Sep 2016
- Steering7
- Engine4
- Service brakes, hydraulic4
- Electrical system3
- Power train3
- Tires3
- Seats2
- Vehicle speed control2
- Fuel/propulsion system1
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 11, 2026 · Full problem breakdownNHTSA vehicle page
What owners report most
Verbatim excerpts from NHTSA complaints, by component
Steering
7 reports
“STEERING WHEEL HAS DEVELOPED A VERY SIGNIFICANT "WOBBLE" WHICH EXISTS REGARDLESS OF WHAT TILT POSITION IT IS IN. THE WOBBLE IS DIAGONAL, FROM NORTHEAST TO SOUTHWEST IN DIRECTION, AND THE APPARENT PIVOT POINT OF THE WOBBLE IS JUST BEHIND INSTRUMENT PANEL LEVEL. HAD CAR AT DEALER FOR OTHER WORK, AND THEY COMMENTED ON IT TOO. DID NOT CALL IT A SAFETY ISSUE THOUGH... WANTED $120 TO FIX IT. I DECLINED AT THE TIME, SINCE THEY DIDN'T THINK THERE WAS A SAFETY CONCERN. I WOULD TEND TO DIFFER WITH THEIR OPINION THOUGH, AND FEEL THEY SHOULD REPAIR THIS AT NO CHARGE DUE TO IT BEING THE STEERING MECHANISM INVOLVED. I'VE HEARD THIS COMPLAINT FROM MANY OTHER 95-99 RIVIERA OWNERS, AND IT SEEMS TO BE EPIDEMIC AMONG THESE CARS. *TR”
Engine
4 reports1 fire
“IT STARTED OUT AS A SMALL OIL LEAK, BUT I RECENTLY NOTICED THE LEAK HAS EXPANDED SIGNIFICANTLY. IT'S DIFFICULT TO PINPOINT THE LEAK, BUT AN OIL PAN UNDER THE CAR SHOWS SIGNIFICANT PUDDLING OF OIL. A SEALER/CONDITIONER DOESN'T APPEAR TO HAVE BEEN AFFECTED. WHILE ONLINE, I NOTED THAT THE 3800CC 3.8L ENGINE SEEMS NOTORIOUS FOR THIS PROBLEM, AND OTHER MODELS OF GM CARS APPEAR TO BE SUBJECT TO A RECALL. NOT SO THE BUICK, WHICH TO ME, HAS THE SAME ENGINE. GIVEN THAT IS IS KNOWN NOW, I'M CONCERNED THAT THIS LOW PRODUCTION VEHICLE WAS LEFT OUT OF THE RECALL AND SHOULD BE INCLUDED. PUDDLE OF OIL PHOTO ENCLOSED. THIS CONDITION IS MOST NOTICEABLE WHILE THE VEHICLE IS STATIONARY.”
Service brakes, hydraulic
4 reports
“UPON STOPPING VEHICLE HAS TO PRESS BRAKES DOWN HARD TO HOLD VEHICLE IN PLACE. VEHICLE JUMPS IF BRAKES ARE NOT HELD DOWN FIRMLY. PLEASE PROVIDE ANY FURTHER INFORMATION. *AK”
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 11, 2026
Engines, transmissions & drive
1 version rated by the EPA
- EPA class
- Midsize Cars
- Engines
- 3.8L 6-cyl turbo supercharged
- Transmissions
- Automatic 4-spd
- Drive
- Front-Wheel Drive
- Fuel
- Regular Gasoline
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
Data from EPA fueleconomy.gov · synced Nov 11, 2026EPA listing
EPA fuel economy by version
City / highway / combined, annual fuel cost and CO₂
EPA
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| Riviera Auto 4-spd, 6 cyl, 3.8 L, Turbo, Sup Charg · Front-Wheel Drive | 16 | 25 | 19 | $3,150 | 468 |
- 19mpg comb.
Data from EPA fueleconomy.gov · synced Nov 11, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
NHTSA 5-Star Safety Ratings
New Car Assessment Program
NHTSA has not published 5-Star Safety Ratings for the 1998 Buick Riviera as of Nov 11, 2026.
Data from NHTSA NCAP Safety Ratings API · synced Nov 11, 2026
Maintenance basics
General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
- Engine oil & filter5,000–10,000 mi
6–12 months - Tire rotation5,000–7,500 mi
Every oil change - Engine air filter15,000–30,000 mi
1–2 years - Cabin air filter15,000–25,000 mi
1–2 years - Brake fluid—
2–3 years - Coolant60,000–100,000 mi
5–10 years - Spark plugs60,000–100,000 mi
— - 12V battery—
3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
1998 Riviera questions
How many recalls does the 1998 Buick Riviera have?
0 recalls found in NHTSA data as of Nov 11, 2026.
What are the most common 1998 Buick Riviera problems?
Owners filed 29 complaints with NHTSA. The most-cited components are steering (7), engine (4), service brakes, hydraulic (4). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
What MPG does the 1998 Buick Riviera get?
The EPA rates the 1998 Buick Riviera at 19 mpg combined, depending on engine and drivetrain (1 version rated).
Data from NHTSA & EPA · synced Nov 11, 2026