why does my tow haul mode not work??? push it and nothing happens. it is because i have a servise 4wd light?

 

The wire that runs down the shifter into the steering column could have broken. Pretty common problem.

 

what color is it? anybody know off hand?

 

According to google, it should be orange.

 

The wires are too small of stranded copper for repair. They break again quickly right next to your repair. Often the wires break right where they come out of the shifter handle.

To check where they broke, pull the column shift boot out of the clamshell, and look around. You might also pull the bottom half of the clamshell to look up there. The 2 wires are white, in an orange sleeve, IIRC. The harness is serviced by replacing the shifter handle, around $85-90, very easy to replace, and the connector is on the left side of the column.

 

that sucks!! thanks

 

I repaired mine 2 weeks ago. It's an orange wire like stated above. The wire is help down with plastics clips. Mine was broke at the first plastic clip right out of the shifter handle. I removed an discarded the plastic clips and re-soldered the connection.

 

i think i will take a look at it. i may have pulled it when i put in my turbo timer.

 

Glad i found this thread, my 00 Z71 and my wifes 05 Tahoe Z71 both tow / haul no worky

 

hell, i haven't even got to check this out yet. been to snowy and cold lately.