Overview & Reviews

The Bonneville gets only minor changes for 2003. Base SE models now sport newly styled 16-inch steel wheels and a standard AM/FM/CD stereo, while all models can be upgraded with optional XM Satellite Radio. Previously standard side airbags are now optional on SE and SLE models.

• Loads of gee-whiz features, solid handling and drivetrain, excellent crash test scores, large trunk.

• Average interior materials, overly complicated controls, poor resale value.

User Reviews:

Showing 11 through 20 of 45.00

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  Loyal Bonneville Buyer! - 2003 Pontiac Bonneville
  By Loriorio - February 23 - 10:00 am

  This is my 4th Bonneville. My trade was a 2000 Grand Prix GT...super sharp looking but just not a Bonneville. Bonnevilles ride is smooth and quiet. Driver seat is so comfortable and controls are easy to find and use.

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  Fun to drive, many repairs - 2003 Pontiac Bonneville
  By kirkhemphill78 - June 17 - 11:04 am

  60,000 miles, rear air shock bladder broke, $360. 65,000 miles, mass flow air sensor, $205. 70,000 miles, paint started peeling off hood and below gas cap, did not fix. 70,000 miles Service Engine Soon light, cracked vacuum line to gas tank, $105. 85,000 miles, upper manifold gasket and PVC valve, $895. 85,005 miles, throttle position sensor, $169. 90,000 miles, Service Engine Soon light, replaced gas cap, $105. 95,000 miles, replaced vacuum control valve, $169. 112,000 miles, replaced catalytic converter, $140. 125,000 miles, rebuilt transmission, $2,200. Not enough room to show all.