NHTSA lists 3 safety recalls and 81 owner complaints for the 2000 Buick Park Avenue. Most complaints involve engine and engine cooling (14) and electrical system (12). 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. SOME OF THESE VEHICLES FAIL TO COMPLY WITH REQUIREMENTS OF FMVSS NO. 104, "WINDSHIELD WIPING AND WASHING SYSTEMS." THESE VEHICLES HAVE A WIPER SYSTEM MICROPROCESSOR THAT IS SUSCEPTIBLE TO VOLTAGE TRANSIENTS, WHICH CAN CAUSE A "LATCH-UP" CONDITION IN THE SYSTEM CONTROLLER.
VEHICLE DESCRIPTION: PASSENGER VEHICLES. SOME OF THESE VEHICLES HAVE INTERNAL FLUID LEAKS IN THE BRAKE HYDRAULIC CONTROL UNIT.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
“TL* THE CONTACT OWNS A 2000 BUICK PARK AVENUE. IMMEDIATELY AFTER STARTING THE VEHICLE, THE ENGINE EXPLODED. THE VEHICLE WAS INSPECTED BY AN INDEPENDENT MECHANIC. THE TECHNICIAN DIAGNOSED THAT THE RUPTURED INTAKE MANIFOLD DISPLACED THE FUEL LINE, WHICH PULLED THE INJECTOR OUT CAUSING A FUEL LEAK. NO INJURIES WERE REPORTED AND A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE ISSUE. THE FAILURE MILEAGE WAS UNKNOWN. UPDATED 1/16/15*CN UPDATED 01/20/15”
“Right side blinkers stopped working front and back I have checked bulbs fuses relays the safty flashers work on both sides break lights work no blink on the dash for right side blinkers out completely could be blinker switch witch is 400 bucks to replace but not sure if that's the problem”
“I WAS DRIVING A BUICK PARK AVE 2000. AFTER STOPPING AT A STOP SIGN I MADE A RIGHT HAND TURN ONTO A BUSY 3 LANE CITY STREET. WHEN I ACCELERATED AND BEGAN CHANGING LANES THE CAR LUNGED A LITTLE AND CONTINUED TO ACCELERATE ON ITS OWN. I TRIED PRESSING THE BRAKE AND IT FELT LIKE THERE WAS A BLOCK OF WOOD UNDERNEATH IT. THE BRAKE WAS NOT WORKING AND THE CAR KEPT ACCELERATING I WAS APPROACHING A BUSY INTERSECTION AND THE LIGHT WAS RED. I TRIED DOWN SHIFTING BUT NOTHING CHANGED. I KEPT TRYING TO BRAKE BUT .IT DIDN'T WORK AND THE CAR KEPT ACCELERATING SO AS I APPROACHED THE RED LIGHT THE ONLY THING I COULD THINK TO DO WAS TRY MAKING A SHARP TURN WITH THE CARS THAT WERE TURNING HEADED IN THE OPPOSITE DIRECTION I WAS GOING. I MANAGED TO SLICE BETWEEN TWO CARS IN THE TURN BUT THE STEERING WHEEL BECAME INCREDIBLY STIFF AND I COULDN'T NEGOTIATE THE TURN AS HOPED. I RAN INTO TWO CARS THAT IN TURN WERE PUSHED INTO TWO OTHER CARS AS A RESULT OF MY NOT BEING ABLE TO BREAK OR CONTROL THE STEERING INTO THE TURN. THERE WERE TWO PEOPLE WHO WENT TO THE HOSPITAL AND HAD INJURIES. *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 |
|---|---|---|---|---|---|
| Park Avenue Auto 4-spd, 6 cyl, 3.8 L · Front-Wheel Drive | 17 | 27 | 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 81 complaints with NHTSA. The most-cited components are engine and engine cooling (14), electrical system (12), steering (9). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2000 Buick Park Avenue at 19–20 mpg combined, depending on engine and drivetrain (2 versions rated).