Jake in an autotranny

if you have the mercedes 12 speed autoshift there are 2 different jakes one you set on the column on right side
and a switch CC1 on the dash that holds the truck at speed in cruise

it isn't your mothers buick as the saying goes

 

yes a DD15 with a mercedes 12 speed auto shift
the new standard put out by Freightliner
jake works as I said
seems to be ok by me

 

http://blogsdir.cms.rrcdn.com/8/files/2012/11/evolution-dash.jpg

Button on right side closest to you.

Make sure it is on.

If Jake not working quick enough for you, hit paddle to a lower gear.

The sensor in the tranny needs you to communicate with it.

Even an auto needs a little input from the driver.

 

it a software setting in the ecm...... it's set so you must hit the breaks for X amount of time before they come on....that's they way they ordered it...........there is nothing YOU can do to change it

you can talk to total about changing it (they can plug in and change it)...... but it's not going to happen because some bean counter thinks having it set this way will save fuel....

 

son you just need to get used to the new truck
i drove from Cheyenne to Sacramento last 2 days and mine was fine
if you been driving over bigger hills it might be a problem

 

i see in another thread your sitting because it is windy in Ohio
with the high wind warning and you being empty that seems prudent
so exactly which hills are you worried about the jake
every truck you drive will be different just like a woman
you need to massage the best out of them