No speedometer problems but other instrument panel problems on a 05. I just
have not had time to take it in.
With the key off hold the trip reset stick in and turn the key to on (let
off when all the dash lights come on). This will test your instrument panel
and give any codes stored in the brain of your instrument panel. Codes read
out like XX-XX the first two are the code last two are the number of times
you have started the truck from when the code was set.