Defects in the 2004 bonnevilles witht he gauges and ac/heating unit

Asked by Feb 21, 2014 at 11:24 AM about the 2004 Pontiac Bonneville SLE

Question type: Maintenance & Repair

We bought a 2004 Pontiac Bonneville along with my in laws. We began having problems with the gauges not working then ac/heating unit would randomly stop working having to slap the dash board to get it working where eventually stopped all together. We starting using my in law who's is like new only 32000 miles on it. We began using the car for travel and low and behold the gauges started doing the same thing and now the ac/heating unit is randomly working having to slap the dash board to get it blow. Has there been any recalls on this car for similar problems. I just find it unusual both cars start having the same problems being the same year and around the same time.

1 Answer


The 2004 Bonneville has two separate grounding buss bars near the front kick panels. They tend to corrode over time, and a loose or failing ground will cause all sorts of gauge issues. Sometimes a good cleaning is all that's needed but it's a time-consuming deal to get to them. Anything that starts to work when you smack it is failing because of a loose connection 9 times out of 10.

3 of 3 people found this helpful.

Your Answer

Pontiac Bonneville Experts

  • #1
  • #2
  • #3
View All

Related Models For Sale

Used Pontiac Grand Prix
8 Great Deals out of 2,418 listings starting at $1,900
Used Chevrolet Impala
503 Great Deals out of 32,101 listings starting at $1,000
Used Buick Regal
137 Great Deals out of 5,163 listings starting at $2,495
Used Chevrolet Monte Carlo
5 Great Deals out of 1,165 listings starting at $1,125
Used Pontiac GTO
3 Great Deals out of 391 listings starting at $3,950
Used Pontiac G6
35 Great Deals out of 3,736 listings starting at $1,000
Used Chevrolet Malibu
1,008 Great Deals out of 53,938 listings starting at $1,599
Used Chrysler 300
347 Great Deals out of 19,704 listings starting at $1,400
Used Buick LaCrosse
324 Great Deals out of 14,411 listings starting at $500
Used Nissan Maxima
330 Great Deals out of 20,467 listings starting at $1,400

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.