Is the 2000 Pontiac Bonneville a bad year?
212 owner complaints to NHTSA. Engine and transmission complaints are in line with other Bonneville years.
Keep it
Engine and transmission complaints for the 2000 Pontiac Bonneville are in line with other Bonneville years. Visibility and wipers and steering stand out for this year: see below.
The verdict moves with mileage: the same car reads differently at 30,000 and at 150,000 miles.
What 2000 Bonneville owners report, by mileage
Each system owners named in five or more complaints, with the mileage range where the middle half of those complaints were filed. Read at 60,000 miles.
| SYSTEM | COMPLAINTS | MIDDLE HALF FILED AT | TYPICAL US REPAIR BILLS |
|---|---|---|---|
| Visibility and wipersSTANDS OUT | 57 (27%) | 44k–86k miles · around this mileage | — |
| SteeringSTANDS OUT | 46 (22%) | 35k–88k miles · around this mileage | Steering rack and pinion replacement $700–$2,100 |
| Engine | 34 (16%) | 54k–100k miles · around this mileage | Valve cover gasket replacement $110–$500 · Timing chain replacement $1,000–$4,000 |
| Electrical system | 32 (15%) | 60k–126k miles · around this mileage | 12-volt battery replacement $100–$400 · Starter motor replacement $350–$1,200 |
| Transmission and drivetrain | 18 (8%) | too few with a mileage | — |
| Brakes | 16 (8%) | too few with a mileage | — |
| Fuel system | 13 (6%) | too few with a mileage | — |
| Body structure | 10 (5%) | too few with a mileage | — |
| Suspension | 10 (5%) | too few with a mileage | — |
| Equipment | 6 (3%) | too few with a mileage | — |
| Air bags | 5 (2%) | too few with a mileage | — |
| Seats | 5 (2%) | too few with a mileage | — |
| Tires | 5 (2%) | too few with a mileage | — |
Bills are typical US ranges from the sources named in the tool (J.D. Power, Kelley Blue Book, CarParts.com and others), printed only for systems that stand out or sit at or ahead of 60,000 miles. Not a quote.
What owners reported alongside their complaints
Of 212 complaints: 4 mention a crash · 21 mention a fire · 3 report an injury.
No complaints in the last 12 months; the newest was filed in Dec 2018.
Counts of what owners wrote in their complaints, not verified by anyone.
In owners' own words
I've run into a dex-cool problem with my Pontiac 2000. The car has 65.000 mi and the cylinder head gasket is starting to leak, eventually destroying the engine.
One nut and bolt on each side of inner panel under the hood in engine compartment were loose. I tightened about 4 to 5 turns on nut (Used 18MM open end wrench).
I have had my 2000 Bonneville in the shop several times for various reasons.
Unedited excerpts from complaints filed with NHTSA, chosen by mileage (nearest 60,000 miles), not by content. Unverified.
Recalls for the 2000 Pontiac Bonneville: 2
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. The backfire can rupture the intake manifold. The rupture of the intake manifold can displace a fuel line, pulling an injector out of place, and causing a fuel leak and possible fire.
Vehicle description: passenger vehicles. Some of these vehicles have internal fluid leaks in the brake hydraulic control unit. When the rear brake proportioning, antilock brake, traction control, or stability control feature is activated in some driving situations, the feature may not perform as designed.
A recall may cover only some cars of a model year; the campaign size counts every model and year it lists. Enter your VIN at nhtsa.gov/recalls: dealers fix open recalls free.
Service bulletins from Pontiac: 82
Repair instructions Pontiac sent its dealers for symptoms seen in the shop on the 2000 Pontiac Bonneville. Ask a dealer or mechanic for a bulletin by its number.
Rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up
Guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system
Proper way to install the pistons in an engine
Will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
NHTSA defect investigations: 3
Engine compartment fire
Engine compartment fires
Engine compartment fires
Neighbouring years
2001 Bonneville: 129 complaints, keep it.
Every Pontiac Bonneville year
2000 · 2001 · 2002 · 2003 · 2004 · 2005 · All Bonneville years side by side
Other Pontiac models: Pontiac Aztek · Pontiac G5 · Pontiac G6 · Pontiac G8 · Pontiac GTO · Pontiac Grand Am · Pontiac Grand Prix · Pontiac Montana · Pontiac Solstice · Pontiac Sunfire · Pontiac Torrent · Pontiac Vibe. All makes and models.
Questions
Is the 2000 Pontiac Bonneville a bad year?
212 owner complaints to NHTSA. Engine and transmission complaints are in line with other Bonneville years. At 60,000 miles the tool says: Keep it.
What are the most common problems with the 2000 Pontiac Bonneville?
By owner complaints to NHTSA: visibility and wipers (57), steering (46), engine (34), electrical system (32), transmission and drivetrain (18).
How many recalls does the 2000 Pontiac Bonneville have?
2 recall campaigns list this model year: Fuel system (NHTSA 04V-090), Brakes (NHTSA 00V-114). A recall may cover only some cars; check by VIN at nhtsa.gov/recalls.
Method: counts of unverified owner complaints filed with NHTSA, compared only with other years of the same model (sales volumes are unknown, so no failure rate is computed). A system stands out at 40+ complaints and at least twice the model's quiet (lower-quartile) year, or twice the share across every vehicle of that model year. The mileage range is the 25th to 75th percentile of the mileages owners reported. Data received by NHTSA through November 5, 2026. Repair prices are typical US ranges from named sources, not quotes. Not a diagnosis and not financial advice. PulsCar is not affiliated with NHTSA. Check this car at your own mileage.