mine doesn't work either, and i can't remember if it ever has. never looked into it really cause i rarely ever use it to begin with, but it would be nice to know what the problem is if anyone figures it out.
i'm pretty sure it would have worked when i got the truck or else i would have taken it back to be fixed. i think something happened when my pcm died and i had it replaced by the dealer. this happend twice due to a bad alternator.
I looked around about a year ago regarding my issue. I seem to remember reading something about bad Crank position sensor causing issues with cruise. But the truck starts and runs awsome for being 13yr old. wouldn't a bad CPS cause drivability issues or something otherwise noticable?
i noticed my cruise light lit up but wouldnt work as well. i also noticed my headlights wouldnt turn on except for my brights. all i did was readjust my tilt on the steering column and they both turned on. so i would just check for the wiring in the steering column. hope that helps
just an update for you guys my cruise quit working the other day light came on but wouldn't work. There is a vacuum canister behind the passenger head light next to the intake. and there is a vacuum line from the firewall across the intake manifold to there that had broken on me. I would suggest checking there first.
I have the problem where I have the light on but no setting, Ive read it can be the sensor on top of the rear because of the problems with the abs & brake lights coming up. Im not sure, there seems to be no easy way to figure it out
TO EVERYONE WITH CRUISE CONTROL ISSUES, CHANGE YOUR BRAKE SWITCH!!!
I had my truck from May '11 to now (Feb '12) and my brake lights worked fine but my cruise control would not set. Recently I discovered I had no brake lights, I knew it was from the switch because all other rear lights (turn signals, running lights, hazzards) worked fine. (probably from me bouncing on the pedal at red lights to the beat of music) So I bought the switch off ebay, only $13, put it in today, and BOOM I HAVE CRUISE CONTROL!!!!!!!!!!!!!!