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I have a 2015 SLT Z71 4X4:

Truck has bad hesitation when accelerating from low speeds. It feels like truck almost stutters when going from 25 mph and up. Once it gets going it runs fine. I have had it back to dealer a couple of time but always get the “performing as designed”. Has anyone purchased a program that will help with the low speed performance? I have driven a non 4x4 truck as a loaner and didn’t notice the hesitation as much so not sure if it is related to the 4x4.

Thanks for any input.

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  • 2 weeks later...

I just found out there is a service bulletin with this issue. Several vehicles involved. See: PIP4112Q. There is no fix. They are calling it working as designed. I have some serious safety concerns with this. You don't want to have a vehicle stall while turning into traffic. Please report your complaints. There needs to be a recall.

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  • 2 months later...

I have this too, around 3rd gear. But it seems to be getting better. I mash the pedal when it does it. If it is learning, as most new transmissions do when new, then I want it to know i like to accelerate fast. I have about 2,600 miles so far. When I take it in for my first oil change i will bring it up to them.

 

FYI, I think there is another thread on this here

Edited by tooch420
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I have this too, around 3rd gear. But it seems to be getting better. I mash the pedal when it does it. If it is learning, as most new transmissions do when new, then I want it to know i like to accelerate fast. I have about 2,600 miles so far. When I take it in for my first oil change i will bring it up to them.

 

FYI, I think there is another thread on this here

^^^^ This!! 1: there is a tremendous amount of torque management applied right from a start to reduce the stress on driveline components, you can really notice it on the 1-2 shift,

2: the engine needs to be at at least 3000 ram to start making any kind of tq/hp.

 

I've noticed that my truck is working better after each time I pull our holiday trailer, when I'm pulling I use the trans in manual mode and keep the rpm's up while pulling hills.

 

I also had a 2014 1500 for awhile and it to worked better if you drove it like you stole it. I do believe now that these trucks will "learn " how you drive and adapt.

 

Try getting on the throttle for a month and see if it gets better.

 

Sent from my Z30 using Tapatalk

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What a nightmare! My new 2015 GMC Sierra SLT Crew Cab has been plagued with stutter or hesitation issues from the day I bought it. I was told it needed to learn my driving habits and all would be fine. Then I was told over the phone that it was active fuel management working as designed. I should have insisted on a test drive.

 

It's scary to drive as you never know what will happen when you accelerate. Sometimes it does nothing them suddenly lunges forward. Sometimes it stutters up an entire hill or when trying to pass on the interstate. Highway on ramps are terrible.

 

I gave up on the dealership I bought from and went to my trusted local dealer for help. They have been trying to fix the issue and worked on it at least three times for days - always providing a Sierra loaner. The last effort was to replace the transmission, but that made things worse!

 

Interestingly, the loaners do not have this issue.

Therefore, I do not believe this is "normal" operation of active fuel management. From Internet research, that seems to be the stock answer for underlying issues.

 

When trying to trade this 13 month old truck, after being offered GM trade assistance, the dealer reduced the trade in value due to mechanical problems. That along with first year depreciation sets me back about $15,000. I can not afford that financial hit.

 

GM - do the right thing and fix my truck or replace it. I should not bear the financial weight of a defective product you made and sold.

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  • 11 months later...

I have a 2016 GMC sierra 1500. 13,500 miles on it. I have severely studied this topic and figured out it is torque management. One thing that seems to help me, though it is a sacrifice, is turning off traction control. It takes the limiter off of your RPMs and takes a lot of the hesitation and delay in acceleration out. If you want to completely fix the problem without having to do this, buy a tuner.

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  • 5 months later...

My 2018 Sierra 1500 5.3L 6-speed  does this ... big time.  After 1500 miles i figured out how to eliminate the issue.  Put the xmission in "L" then shift  with the '+' and '-' buttons on the shifter until it is in L4Transmission shifts properly at low rpm/speeds.  Keeping it 4th gear prevents it from shifting into 6th (lugging gear), this mode doesn't go into V4 mode.  and the torque converter kicks in/out as expected.

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  • 1 year later...

I have a 2017 Sierra with the 5.3 and 6 speed transmission.  It has had a hesitation at low speeds since I took it for a test ride before I bought it.  I was told that it has to "learn".  It hasn't learned.  However on occasion it will run perfectly with no hesitation and it will continue to run perfectly until I stop and turn off the key.  Once I restart the hesitation comes back.  The dealer has no clue because there is no "code".  There is even a name for the condition...The Chuggles...

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  • 4 weeks later...
  • 1 year later...
On 9/10/2016 at 9:29 PM, Maxmayo said:

What a nightmare! My new 2015 GMC Sierra SLT Crew Cab has been plagued with stutter or hesitation issues from the day I bought it. I was told it needed to learn my driving habits and all would be fine. Then I was told over the phone that it was active fuel management working as designed. I should have insisted on a test drive.

 

It's scary to drive as you never know what will happen when you accelerate. Sometimes it does nothing them suddenly lunges forward. Sometimes it stutters up an entire hill or when trying to pass on the interstate. Highway on ramps are terrible.

 

I gave up on the dealership I bought from and went to my trusted local dealer for help. They have been trying to fix the issue and worked on it at least three times for days - always providing a Sierra loaner. The last effort was to replace the transmission, but that made things worse!

 

Interestingly, the loaners do not have this issue.

Therefore, I do not believe this is "normal" operation of active fuel management. From Internet research, that seems to be the stock answer for underlying issues.

 

When trying to trade this 13 month old truck, after being offered GM trade assistance, the dealer reduced the trade in value due to mechanical problems. That along with first year depreciation sets me back about $15,000. I can not afford that financial hit.

 

GM - do the right thing and fix my truck or replace it. I should not bear the financial weight of a defective product you made and sold.

2015 Z71 and it's shuttering like crazy trying to accelerate and nobody seems to have the answers. It's BS.

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  • 6 months later...

Ok guys, I have a 2016 GMC Sierra as well.  I bought it used with about 40k miles on and it had the same hesitation during acceleration that everyone is talking about.  I went to a dealership in Chandler, OK and I told him about the problem.  The service guy said immediately stated "transmission fluid".  I looked at him like he was crazy.  He proceeded to tell me that whatever kind of tranny fluid they put in it come from the factory breaks down really quickly and that they are replacing it with a high grade Mobile One fluid.  I told him that didn't sound right that tranny fluid would cause this and he said they have done probably 200 of them with the same issue.  So, I took it in, still very skeptical and turned over my keys.  About an hour late, I paid the $275 and he gave me my keys back and he told me that "it might take about 500 miles for the problem to fix", at which point I thought that was his out.  Well, I got on the interstate and low and behold, NO HESITATION.  I haven't felt the hesitation at all, at anytime I've accelerated.  

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