2012 not downshifting properly?

[GaryB]

Hey guys, just picked up a 2012 bighorn with the 5.7 and 6spd.
When I'm going about 35-45 and hit an incline when I give it throttle it feels like it don't want to move. Aventually I give enough throttle and I get thrown in the seat. Does this happen to others as well, and is it something that can be adjusted at the dealership? I do notice when I hit about 35mph I can see see the truck shifts and then seems to shift again and I'm at about 1000 rpm. When I get to about 3/4 throttle it takes off. I normally notice this getting off an off ramp and going over hills. Any info would be great!

Thanks fellas,
GaryB

 

[karposvt]

Go to the dealer and tell them what its doing, then request the trans software update. I had it done and it helps out, it doesn't make it perfect but defiantly better...

 

[GaryB]

Go to the dealer and tell them what its doing, then request the trans software update. I had it done and it helps out, it doesn't make it perfect but defiantly better...

Thanks a lot! Will do.. Also don't know if anyone has had the "Eco" light stay on while in 2nd and trying to gain speed and the truck just doesn't move? What I have read is that the MDS is flat out horrible. This has only happened a few times in the last month I have owned the truck.

Thanks

Gary

 

[Etroze86]

Get a tuner and turn the MDS off best drivablility fix on my truck so far period.

 

[sausec17]

maybe check to see if you have "hill assist" turned off in your EVIC...

 

[karposvt]

Haven't had that happen, but if you want to turn off the MDS without getting a tuner, use the manual shift buttons on the shifter and put it in 6 and just leave it like that, it turns it off, drive it like that for awhile a see if you notice a difference

 

[WhiteExpress]

My '13 2500 does this same tom-foolery. I f'n hate it.
It's on my list of things to get looked at by the dealer.

 

[GaryB]

I have hill assist turned on. I made an appt with the dealer to try to get these problems solved. Thanks guys. I guess I will be looking into getting a tuner. For now around town I will keep it in 6th.

Thanks again!

 

[Casper]

Are you familiar with the Multi-Displacement System or the evil MDS as I refer to it?

Cuts out cylinders under low load and then resists like hell when you need them restarted for a load increase like a hill.

Dealer may tell you its normal and if your issue is MDS, it would be annoying but normal.

You can leave the shifter at manual 6 and it will not deactivate cylinders. That tends to let the skinny pedal demand the downshift you want.

 

[Chewy]

Weird, I wonder if they tweaked MDS some on the 2013 A8 trucks because I don't have an issue with it coming out of MDS, if anything, I have an issue keeping it IN MDS. lol