NHTSA lists 3 safety recalls and 242 owner complaints for the 1998 Cadillac Deville. Most complaints involve exterior lighting (43) and air bags (35). The EPA rates it 18 mpg combined.
VEHICLE DESCRIPTION: PASSENGER VEHICLES. SOME OF THE SIDE IMPACT SENSOR MODULES HAVE QUALITY PROBLEMS THAT CAN CAUSE AN INADVERTENT DEPLOYMENT OF THE DRIVER OR PASSENGER SIDE IMPACT AIR BAGS. THESE SIDE AIR BAGS DEPLOY WITH LESS FORCE THAN A FRONTAL AIR BAG AND ARE DESIGNED TO MINIMIZE THE RISK OF SERIOUS INJURY.
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THESE VEHICLES WERE BUILT WITH HOOD HINGE PIVOT BOLTS WHICH CAN BREAK DUE TO AN IMPROPER HEAT TREAT CONDITION. THIS DOES NOT COMPLY WITH THE REQUIREMENTS OF FMVSS NO. 219, "WINDSHIELD ZONE INTRUSION." A BROKEN BOLT CAN CAUSE EITHER THE CORNER OF THE HOOD NEAR THE WINDSHIELD TO RAISE, OR ONE SIDE OF THE HOOD TO BE UNSTABLE WHEN OPENED.
VEHICLE DESCRIPTION: PASSENGER VEHICLES, HEARSES AND LIMOUSINES. THE CANISTER PURGE EVAPORATIVE EMISSIONS HARNESS ON THESE VEHICLES WAS MISROUTED.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
“I AS DRIVING ON A FARMED MARKET ROAD (F.M.) APPROX. 55 MPH. AND THE RIGHT HEADLIGHT LENS FLEW OFF THE CAR. LUCKILY THERE WASN'T ANY OTHER CARS BEHIND ME, AND THERE WASN'T ANY DAMAGE TO MY CAR AND/OR ANYONE ELSES VEHICLE. AFTER I RETURNED HOME, I CHECKED THE DRIVER'S SIDE LENS TO DISCOVER IT WAS LOOSE AS WELL.”
“TAKATA RECALL. AIR BAG LIGHT IS ON A FEW DAYS AGO. ALSO, VEHICLE OVERHEATED AND NEEDED NEW WATER PUMP SEVERAL YEARS AGO. KEEP HAVING TO REPLACE THE BATTERY. SMOKE WAS COMING UP FROM FRONT AND TURN SIGNALS DID NOT WORK. HAD TO REPLACE FALL 2016 HORN DID NOT WORK, HAD TO REPLACE PART INSIDE STEERING WHEEL. JAN 2017”
“CUSTOMER WAS DRIVING VEHICLE DOWN ROAD, ALL OF A SUDDEN COMING UP TO A STOPLIGHT CAR SUDDENLY DIED, AT THE SAME TIME WHITE SMOKE CAME BILLOWING OUT THE BACK OF THE CAR, IT CAUSED A TRAFFIC HAZARD IN WHICH NOBODY COULD SEE HER CAR, SHE WAS REARENDED, AS WELL AS THE GUY THAT REARENDED HER. THE OCCUPANT OF THE VEHICLE THAT REARENDED HER ENDED UP GETTING HIS NOSE BROKEN WHEN HE HIT HIS STEERING WHEEL. VEHICLE TAKEN TO DEALERSHIP AND WAS DETERMINED THAT THE REAR HEAD BOLTS HAD PULLED FROM THE BLOCK CAUSING THE HEAD TO SEPARATE FROM THE BLOCK OF THE VEHICLE, QUOTED $4500 TO REPAIR AND WAS TOLD THEY COULD NOT WARRANTY REPAIR BECAUSE IT IS A NORTHSTAR ENGINE. VEHICLE THEN BROUGHT TO ME TO GET IT REPAIRED. *TR”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| DeVille Auto 4-spd, 8 cyl, 4.6 L · Front-Wheel Drive | 15 | 24 | 18 | $3,550 | 494 |
| 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 |
3 safety recalls as of Oct 28, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 242 complaints with NHTSA. The most-cited components are exterior lighting (43), air bags (35), engine and engine cooling (34). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 1998 Cadillac Deville at 18 mpg combined, depending on engine and drivetrain (1 version rated).