2021 Silverado Custom 2.7 Start Stop Lurch

[Rob DiRienzo]

Just purchased a new 2021 Silverado that now has 500 miles on it and the Auto Start Stop has started to lurch forward sometimes violently when you remove your foot from the brake pedal on engine restart .  It’s going into dealer next Monday for them to look at it. When I turn the auto start stop off it works very smooth. Right now as long as I remember to turn it off on startup it’s fine. Hopefully this is a simple fix. Has anyone else had this issue? Thanks in advance!!!!

Edited May 18, 2021 by Rob DiRienzo
Missed words

[Bill Reinhardt]

Ever get this resolved?

[MCSarge]

It happens on the 5.3 also.  I solved it by installing the Autostop Eliminator and once it is turned off it stays off until you turn it back on.  Very simple install took me about 30 minutes taking my time.

[KARNUT]

I was visiting my father in law a few months ago. He had just bought a new CRV. We were driving through Fayetteville to go to breakfast. I felt a slight shutter during takeoff. Unlike my CRV. I looked over sure enough sitting at the light no RPMS. Our 5 year old CRV gets 30 mpg in town. Why the hell would Honda put that on a CRV. At least there’s an off button by the shifter. Much to my father in law’s dismay he’s sensitive to something he probably wouldn’t noticed. Except his son in law pointed it out. I used to do that with his Honda mini van with its cylinder deactivation. He didn’t notice that either. Than he did. He was great full that I pointed that out too!

[Amcguy1970]

1 hour ago, KARNUT said:

I was visiting my father in law a few months ago. He had just bought a new CRV. We were driving through Fayetteville to go to breakfast. I felt a slight shutter during takeoff. Unlike my CRV. I looked over sure enough sitting at the light no RPMS. Our 5 year old CRV gets 30 mpg in town. Why the hell would Honda put that on a CRV. At least there’s an off button by the shifter. Much to my father in law’s dismay he’s sensitive to something he probably wouldn’t noticed. Except his son in law pointed it out. I used to do that with his Honda mini van with its cylinder deactivation. He didn’t notice that either. Than he did. He was great full that I pointed that out too!

 

Because it gives a 5-8% increase in city mpg so that 30 now becomes about 31.5-32.5 which is a nice increase. I don't mind these technologies, I am good with saving some extra fuel and helping to prolong and offset carbon and mpg requirements so ICE engines last longer. 

 

Tyler

[KARNUT]

1 hour ago, Amcguy1970 said:

 

Because it gives a 5-8% increase in city mpg so that 30 now becomes about 31.5-32.5 which is a nice increase. I don't mind these technologies, I am good with saving some extra fuel and helping to prolong and offset carbon and mpg requirements so ICE engines last longer. 

 

Tyler

My father in law is 90. He drives pretty good for his age. I’m aggressive. The first place I looked was his mileage display. That wasn’t the case. He even has a more efficient engine. True I don’t like most of the new technology. I’m a gambler. I don’t like the odds. Replacing extra parts vs gas mileage. That’s why I drive an 02 Avalanche at 15 mpg in town. Versus my last new truck with cylinder deactivation that got 17 in town. 

[taze]

The trick is to start the engine before you need to go. So when the other light goes yellow release the brake just enough (don't have to take your foot off) and it'll start up. I think it happens on all auto-stop vehicles. It's just not all of them have a giant plateau of torque under the hood.