2005 Pontiac Bonneville problems, recalls, safety rating, MPG & value

Q: What gas mileage does the 2005 Pontiac Bonneville get?

The 2005 Pontiac Bonneville has U.S. EPA estimates of 18–21 mpg combined, depending on engine and trim (2 versions).

Q: How much is a 2005 Pontiac Bonneville worth?

Comparable 2005 Pontiac Bonneville listings run roughly $1,250–$4,977, typically around $3,032 (from 21 vehicles).

2005 Pontiac Bonneville at a glance

Owner complaints27

Combined18–21 mpg

Typical price$3,032

Free: that car's specs and build sheet, model-year recall campaigns and a fair price.

2005 Pontiac Bonneville common problems

The most-reported problem areas across all 27 owner complaints filed with NHTSA — and what to check before you buy.

Air Bags

Confirm the airbag light turns on then off at startup — if it stays lit there's a fault (costly, and a safety risk). Check for signs of prior deployment.

Electrical System

Test every electrical feature: windows, locks, infotainment, charging and all lights. Watch for flickering, dead accessories or warning lights.

Steering

Steering should be tight and centered — no play, clunks or wandering. Test at low and highway speed; listen for power-steering whine.

Engine

Listen for knocks or ticking, check for leaks and blue/white exhaust smoke, and make sure it doesn't overheat. No check-engine light should be on.

Power Train

Drive through every gear: watch for slipping, hard or delayed shifts, and shudder. Check for transmission/driveline leaks and noises.

Electronic Stability Control (esc)

Have a trusted mechanic inspect this system as part of a pre-purchase inspection.

2005 Pontiac Bonneville safety ratings

Frontal crash★★★★★

Side crash★★★★★

Source: NHTSA 5-Star Safety Ratings (NCAP), tested as the 2005 Pontiac Bonneville 4-DR. w/SAB. Ratings can differ by body style and drivetrain.

2005 Pontiac Bonneville MPG & running costs

Combined18–21 mpg

City17 mpg

Highway25 mpg

Est. annual fuel cost$3,450

EPA size classLarge Cars

TransmissionAutomatic 4-spd

Passenger volume104 cu ft

Cargo volume18 cu ft

5-yr fuel cost vs average new car$5,250 more

Source: U.S. EPA / DOE fueleconomy.gov. The EPA lists 2 versions of this model year; combined is shown as a range and the other figures are averages.

What's a 2005 Pontiac Bonneville worth?

Low

$1,250

Typical price

$3,032

High

$4,977

From 21 comparable 2005 Pontiac Bonneville listings.

Estimated 5-year cost to own

A rough guide to what running a 2005 Pontiac Bonneville costs over five years and 75,000 miles.

Fuel (5 yrs)$17,250

Depreciation (5 yrs)$1,450

Total$18,700

Per mile$0.25

How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. Depreciation compares today's typical asking price for this model year ($3,032) with the same model 5 model-years older ($1,603), from CarLogs listing data. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.