Tow Haul Mode not working and dash indicator light trailer symbol not illuminate on 2006 Chevrolet Silverado 2500 HD

When button at end of shifter is pushed the dash indicator light doesn't come on... I don't believe that the tow haul mode is activated... What is the problem???

by in Potwin, KS on June 25, 2013
1 answer 1 comment
ANSWER by on June 25, 2013
THE BUTTON ASSM ARE KNOWN FOR GOING BAD GET A DIAG AND EST TO REPL IF NEEDED
COMMENT by on June 25, 2013
Thankyou Greg's Orange Auto