From what I was told by allison dealer, it is built in to software, like the warning light functions for filter and oil service.... My 08-09 Bluebirds do the same as new IC's..must have foot application on pedal and must be completly stopped when atempting to switch ranges R-N-D or TCM will lock in range and turn on range inhibit light...if they do the proper steps and shift to neutral again will correct itself .... Just protection from abusive drivers, lol.... I never asked if it could be turned off?... but really not a bad function IMO.. once driver is schooled and realises what they are doing complaints stop. So, yes range inhibit issues are increased...
I too would lean towards driver not pushing the brake pedal.
I'll be the first to admit that I often find the keypad (3000 trannies) just blinking at me because I didn't push the brake pedal hard enough when I have to drive.
15 years ago I was trained old-school...don't mash the brake pedal with the park brake set...time to get my brain reflashed I guess!
They catch me at times too! backing in and out of shop.... even though I never tell my drivers that..lol.. also with special needs busses up here you have to put a good hard application on foot brake to release parking brake. which I am pretty sure is a Fed law for transporting special needs kids.... so normal issue here is switch from drive to reverse or vise-a-versa while still rolling slightly that range inhibits mine...
On a side note air brake systems have a anti compounding feature built into them and have for decades.. so as far as applying service brake while parking brake is set...should be a non issue..
New IC/Cummins/Allison range inhibit
Posted - 04/29/2014 : 09:43:56 AM
