NHTSA lists 3 safety recalls and 140 owner complaints for the 1999 Buick Park Avenue. Most complaints involve engine and engine cooling (39) and seat belts (17). The EPA rates it 19–20 mpg combined.
ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH 3800 V6 (L36) ENGINES AND CERTAIN DELPHI FUEL PRESSURE REGULATORS, THE REGULATORS HAVE A MUCH HIGHER THAN USUAL RATE OF FUEL LEAKS. A LEAK CAN ALLOW FUEL TO ENTER THE INTAKE MANIFOLD THROUGH A VACUUM LINE. IF THE ENGINE DOES NOT START WHEN CRANKED, THE FUEL FROM THE LEAKING REGULATOR AND A MISTIMED SPARK CAN CAUSE A BACKFIRE.
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE BRAKE BOOSTER TO PEDAL ASSEMBLY ATTACHMENT NUTS MAY BE LOOSE.
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THESE VEHICLES MAY HAVE BEEN BUILT WITH INCORRECT FRONT BRAKE ROTOR, BRAKE CALIPER ASSEMBLY, BRAKE PADS, AND CALIPER MOUNTING BRACKET ON EITHER THE LEFT OR RIGHT SIDE OF THE VEHICLE.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
“1999 BUICK PARK AVENUE. CONSUMER WRITES IN REGARDS TO DEFECTIVE PLASTIC MANIFOLDS AND REQUESTS REIMBURSEMENT FOR TWO ENGINE REPAIRS. *SMD THE CONSUMER STATED ON JULY 28, 2003, THE VEHICLE STOPPED RUNNING AND AGAIN ON NOVEMBER 13, 2014. THE CONSUMER STATED BOTH TIMES, THE MANIFOLD HAD TO BE REPLACED. *JB UPDATED 09/09/15*LJ UPDATED 03/7/16.*JB UPDATED 11/01/2017*CN”
“1999 BUICK PARK AVE FRONT PASSENGER SEAT BELT BECAME STUCK IN THE LOWER RETRACTION SYSTEM. *TS A RECALL WAS ISSUED, HOWEVER THE CONSUMER'S MODEL YEAR WAS NOT INCLUDED. *JB”
“PERIODICALLY THE ENGINE WILL STOP. THIS WILL GENERALLY OCCUR WHILE THE CAR IS IN MOTION. THIS WOULD CAUSE A LOSS OF POWER. WHEN IT OCCURS IN TRAFFIC OR ON A CURVE THIS IS EXCEPTIONALLY DANGEROUS. IT WILL RESTART BY SHIFTING INTO NEUTRAL AND TURNING THE IGNITION. IT WILL OCCUR ANYWHERE, WHILE TURNING OR DRIVING STRAIGHT. THIS HAS CONTINUED FOR SEVERAL YEARS.”
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 |
|---|---|---|---|---|---|
| Park Avenue Auto 4-spd, 6 cyl, 3.8 L · Front-Wheel Drive | 17 | 25 | 20 | $3,200 | 444 |
| Park Avenue Auto 4-spd, 6 cyl, 3.8 L, Sup Charg · Front-Wheel Drive | 16 | 25 | 19 | $4,200 | 468 |
| 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 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 140 complaints with NHTSA. The most-cited components are engine and engine cooling (39), seat belts (17), electrical system (16). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 1999 Buick Park Avenue at 19–20 mpg combined, depending on engine and drivetrain (2 versions rated).