I have a 2004 Pontiac Sunfire, and this morning the speedometer stopped working properly. When I am completely stopped it now reads 25mph. All other gauges work fine. For the past 2 weeks the needle on the speedometer has been sticking. For example if I was going 60 and accelerated to 70 instead of the needle accelerating with me it would jump from 60 to 70. Do I need to replace the instrument cluster or could this be a porblem with the speed sensor? If I have to replce the cluster looks like that the entire dash needs to be removed to get to the cluster. (I only took a quick glance.) Is this correct, or are there screws that I am missing to where the driver's side can be removed for easy access?

CaptainRich

In most cases the problem is in the cluster. And yes, the instrument panel upper pad has to come out first, not the whole dash.


Lots and lots of hidden screws, so pull gently until you're sure it's loose!
Don't drop anything down the defroster duct!

shelley7180

I meant to include this in my initial question, but I forgot. When I buy a new or used cluster how do I get the mileage to read correctly? Is there a way I can reset it myself, or should I have the dealership do that? Even if I can do it myself is it better to have a mechanic do it so I have a receipt of the repair for when I trade it in?

CaptainRich

If you have the dealer do the entire repair, they will send your instrument cluster out for repair, or order a replacement based on your current odometer reading, and then reinstall it with the same mileage. Ordering locally here takes about three to five days turnaround.
I am glad that you considered what many don't.

sparcle

I found a great site to report any problems with your car that compiles data to see if safety recalls need to be issued. If you go to Home | National Highway Traffic Safety Administration(NHTSA) | U.S. Department of Transportation. I had this same problem with my car that just started and I have no clue what is even causing it.