Allison TH Button [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Allison TH Button


BIGMoe
09-15-2003, 08:35 PM
I just learned something on my Allison. If you hold the TH Button in for about 2 seconds, it will lock out overdrive, and still not be in TH mode. I was told this was new for 2003. GHas anyone else noticed this?

Max Power
09-15-2003, 08:46 PM
Yep :) I figured it out when test driving it. It also has symbols on the gearshift exlaining it and is also in the owners manual. http://www.dieselplace.com/forum/smileys/Approve.gif

4x4man
09-15-2003, 10:36 PM
Yes sir!! Comes in very handy when towing in the mountains!!


Bob

JEBar
09-16-2003, 04:07 AM
That is one of the features on an "03 that I wish had of been available in '02 ... Jim

hoot
09-16-2003, 07:14 AM
You can add a button to do it. Similar procedure as doing the high idle.

LARSONEM
09-16-2003, 02:03 PM
It's a nice improvement to the transmission for 2003 models.

Micheal Tomac
09-16-2003, 02:18 PM
That's more than Truck Trend magazine could figure out. In a head to head test against the new 6.0 PS they couldn't even figure out how to activeate T/H mode much less the OD lockout on the Allison.