The speedometer needle on my 2003 Trailblazer is stuck on the 120mph point

unfortunately you will have to have the entire instrument cluster replaced, it is a very common problem on these vehicles

Here's a video that might help!

Try giving the gauge pod a solid hit with your hand. This may jolt the needle back.

Otherwise,

• remove the gauge pod.
• remove the front clear panel from the pod.
• move the needle back the zero position.
• reassemble.

See if the speedometer now works.


SD

Hello,

It's common for the gauges to go out on the 03-06 Silverados due to failing gauge motors. You can find rebuild service information here - Silverado speedometer problem
and a DIY guide on fixing them there as well.

Thanks
Dr.S

This is a very common problem with Trailblazers and is caused by a fault speedometer stepper motor - the actual motor that makes your needle move around is wearing out.

You have two solutions, if your Trailblazer has 70k miles or less you can take it to your local Chevy dealer and they will replace it for you as part of a recall.

If you have over 70k miles visit my Trailblazer speedometer page here: http://drspeedometer.com/services-i-offer/trailblazer-speedometer-repair

I specialize in the repair of these units and offer free shipping and a great guarantee on my work.

does anybody no what the problem might be

Yes there is a recall for the instrument cluster gauges not working properly or sticking.Call your dealer and they will ask for your vehicle identification number.What they do is put this number in there computer and they will tell you if you have any open recalls on your vehicle.If you have less than 70k miles this will cost you nothing.But if it is over 70k then you will get the cluster free but have to pay for labor.The recall number is 07187C.Good luck.

replace speed ometer

I had the same problem with my 2004 yukon. It seems all the gauges in the insturment cluster are known to go bad from 2003-2006 in GMC and Chevys. The deaerships are trying to sell you a new instrument cluster which is pretty costly if your warrenty is up. I repaired the circuit board on my insturment cluster myself and everything is working fine now. Since hearing abouth this problem I have started repairing the insturment cluster as a side business. If your vehicle is out of warrenty and your intersted shoot me an e-mail (ryanfeider@hotmial.com).

speed sensor bad or cable ?