AT4 HD

flattop · May 17, 2019

5 hours ago, avalonandl said:

You can turn the feature off

Well on the new 2019 T1 GM 1/2 tons you have to turn it off EVERY time you start the truck!!

It resets back to auto stop each time the truck is shut off.

Hopefully these new 2020 2500 series trucks still have the simplicity and reliability of running on all cylinders and not shutting off at every stop.

Not interested in a truck that I use to make a living, acting like a dam golf cart!! All for what, an additional 20 miles per tankful.

magnum74 · May 17, 2019

49 minutes ago, flattop said:

Well on the new 2019 T1 GM 1/2 tons you have to turn it off EVERY time you start the truck!!

It resets back to auto stop each time the truck is shut off.

Hopefully these new 2020 2500 series trucks still have the simplicity and reliability of running on all cylinders and not shutting off at every stop.

Not interested in a truck that I use to make a living, acting like a dam golf cart!! All for what, an additional 20 miles per tankful.

The 2020 HD's don't have auto start/stop, period.

avalonandl · May 17, 2019

Its right there by the push button start. Push one button to start and another to turn off auto stop.

I will tell you its really not noticeable on the Silverado.

ShotgunZ71 · May 18, 2019

4 hours ago, magnum74 said:

The 2020 HD's don't have auto start/stop, period.

That is correct.

MX86 · May 20, 2019

Will the 2020 AT4's HD shut off when you stop? Deal breaker for me.

Sierra Boy

Correct me if I’m wrong but HD trucks are not bound by same fuel economy standards as are the 1/2 tons.

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avalonandl · May 20, 2019

9 hours ago, MX86 said:

Correct me if I’m wrong but HD trucks are not bound by same fuel economy standards as are the 1/2 tons.

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Vehicles with a GVWR over 8600 lbs are exempt from CAFE.

gearheadesw · July 4, 2019

So after seeing that Chevy has their build and price up and running, at least in partial form, I'm looking to see how an AT4 would price out. But, the GMC site isn't offering B & P yet, just looking to ding around on the site.

JR09country · July 4, 2019

Its right there by the push button start. Push one button to start and another to turn off auto stop.

I will tell you its really not noticeable on the Silverado.

Mine never comes on.

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ApertureX · July 5, 2019

On 5/17/2019 at 5:03 PM, avalonandl said:

Its right there by the push button start. Push one button to start and another to turn off auto stop.

I will tell you its really not noticeable on the Silverado.

Auto Start/Stop is ONLY on the 1500 versions. Both GMC and Chevrolet. Saying HD's have this function will only confuse people coming here to research HD trucks that have never owned one before.

The HD 2500 and 3500 don't have ANY fuel management at AT ALL because they are not required to meet EPA standards and don't bring down the overall EPA rating for GM.

Edited July 5, 2019 by ApertureX

MrChips · July 18, 2019

On 7/5/2019 at 9:43 AM, ApertureX said:

Auto Start/Stop is ONLY on the 1500 versions. Both GMC and Chevrolet. Saying HD's have this function will only confuse people coming here to research HD trucks that have never owned one before.

The HD 2500 and 3500 don't have ANY fuel management at AT ALL because they are not required to meet EPA standards and don't bring down the overall EPA rating for GM.

First 2020 that I've seen on a lot, looks nice...