Marbles67

Hi all
I sold my 2006 duramax, the repair costs p,us it sits 6 month's a year helped make thst decision. I loved the power and im sure i will miss that.I picked up 2003 silverado 2500 6.0 high kilometers but nice little truck. Any advice on Mtc ect would be appreciated.

Marbles67

So notice when I put tow haul mode it does not work also my rear view mirror doesn't turn on

hicksvilleshick

What's mtc? And what won't work when you put it in tow/haul?

Marbles67

Mtc=maintenance. The tow mode doesn't work. The light does not come on.I read the wire tends to break hopefully its easy fix

hicksvilleshick

Aaaaah. Keep fluids fresh especially trans and transfer case.

As for the tow/haul switch see if it works when you've got it in different gears, also might hit it with some compressed air to try to blow it out, that worked on my suburban. I've even heard of guys hitting it with some wd40.

Marbles67

I tried tow haul mode in different gears still no luck

hicksvilleshick

Yeah that sounds like the wire may have broke.

Chevrolet Customer Service

Hello Marbles67,

We are sorry to hear that you are experiencing issues with the haul mode on your Silverado. I can see that you are seeking advice from your peers, however, if you do wish to have this concern looked at by one of our local dealerships please feel free to send us a private message.

Best,
Netty J.
Chevrolet Customer Care