NHTSA lists 1 safety recall and 192 owner complaints for the 1999 Cadillac Deville. Most complaints involve air bags (48) and engine and engine cooling (48). 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.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
“WE WERE LEAVING MY SON'S APARTMENT WHEN WE HIT THE SPEED BUMP AT ABOUT 5 MILES AN HOUR THE AIR BAGS DEPLOYED AND BUSTED OUT OUR WIND SHIELD AND FILLED THE CAR WITH SMOKE. MY FIANC WAS DRIVING THE CAR AND HAD HIS THUMB HURT. SEVERAL OF THE ELECTRICAL THINGS IN THE CAR DO NOT WORK NOW. *TR”
“MY CAR WAS OVERHEATING. I HAD THE WATER PUMP REPLACED AND THE RADIATOR AND IT CONTINUED TO OVER HEAT. I TOOK IT TO THE DEALERSHIP WHERE THEY TOLD ME THAT I MY CROSS OVER PIPES WERE LEAKING AND I WOULD NEED A NEW ENGINE. I FOUND THIS VERY HARD TO BELIEVE WHEN I HAVE TAKEN SUCH GOOD CARE OF THE MY CARE WITH SCHEDULED OIL CHANGES AND THE WORKS. I LOVE MY CAR AND I DON'T WANT TO GET RID OF IT, PLEASE HELP ME. *TR”
“TL* THE CONTACT OWNS A 1999 CADILLAC DEVILLE. WHILE DRIVING APPROXIMATELY 35 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE RESTARTED; HOWEVER, THE FAILURE RECURRED ON SEVERAL OCCASIONS. THE VEHICLE WAS TAKEN TO THE DEALER, BUT THE FAILURE WAS UNABLE TO BE DETERMINED. THE CONTACT RETRIEVED CODES FROM THE ON BOARD COMPUTER: PASS KEY OPEN/SHORTER PELLET, PASS KEY WRONG AND FUEL SENSOR FEEDBACK SHORTED HIGH. THE VEHICLE WAS NOT REPAIRED. THE CONTACT STATED THAT THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 14V355000 (ELECTRICAL SYSTEM). THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 45,000.”
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 | $4,400 | 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 |
1 safety recall as of Oct 30, 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 192 complaints with NHTSA. The most-cited components are air bags (48), engine and engine cooling (48), electrical system (20). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 1999 Cadillac Deville at 18 mpg combined, depending on engine and drivetrain (1 version rated).