Autostop on a hill Warning

[ShamrockShooter]

Today I was pulling out of a plaza that has a steep incline at the stop light. Its one of those where its enough of a hill you just barely have to touch the brake because the idle speed in drive is enough to keep the truck from rolling backwards.

 

So I pulled up in the 19 and came to a stop on the hill waiting for the light. My foot was barely applying any pressure to the brake as mentioned the idle speed held the truck. I had just enough pressure on the brake that the Autostop killed the engine and the normal idle torque. Since my foot was barely on the brake, I didn't even realize but I started rolling backwards a few feet before I noticed what was happening and applied the brake firmly to stop me from rolling into the car behind me.

 

So I guess what I'm trying to say is watch out for that autostop when you are on a steep incline. I thought these trucks had the hill holder but apparently not this one or it just didn't kick in.

 

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[Controller23]

The hill holder and the thing that’s supposed to stop you rolling backwards when you put it in park hitching up a trailer... neither seem to function at all.


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[Wiggums]

I've driven too many cars that had the feature where it supposedly would stay on an incline but they don't work all the time.

 

With or without that feature, I just assume it does not and have my foot on both the gas and the brake. I just had to do it a few days ago on my new Silverado which has that feature, it rolled back a little.

[jgisonfire]

From my experience in a 2012 and a 2018, when on a hill, the trick to get the hill assist stuff to work is to push the brake pedal all the way down to the floor, then it will hold. I believe the 2019's will hold for as long as needed, but I haven't had a chance to test drive one yet.

[lowpro]

I believe hill start assist is only meant to hold you for a moment while your foot switches from the brake to the gas pedal.