Trying to find out dependability.

Asked by Jul 08, 2010 at 12:45 PM about the 2004 Pontiac Bonneville

Question type: General

How many miles over 100k is fairly trouble free? What parts start going? Any major common issues?

2 Answers


the engine is very solid on these cars. I put over 300k on one. At about 178k the transmission started slipping.. Finally gave out at 302k.. LOL... Then I got a new car.. Engine still purred when I sold it. On a side note... The window regulators in these cars are quite problematic... So is the driver side window switch panel.

2 people found this helpful.

Thanks for the info. :) -Kimmy

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