How do I Fix my tow haul switch That does not work on your 1999 Chevy Silverado?

Search Chevy truck forums. Appears the first suggestion it to check all your fuses. If your lucky you might find one the is blown and could be related - this is the easiest thing to do.... If not fuse related then you need to remove the platic steering column cover. Under there at the end of the shift lever you will find two small wires that are for the tow haul button. These wires get brittle and break over time from shift level movement it seems. You will have to repair the broken wire and you should be good to go!