warming battery with keyless ignition

[dabunny]

Hello, Currently my weather is -30. Normally to warm up a battery to help the engine, I can turn my ignition on to the start option and have the battery warm up to around 10-15 seconds then start my precious vehicle.
 

i have a 2019 silverado keyless ignition. How can I do the same or is this longer an option as I haven't found any area to do the same with my key in my key fob.
 

Any suggestions would be greatly appreciated.
 

thank you

[gemarsh]

25 minutes ago, dabunny said:

Hello, Currently my weather is -30. Normally to warm up a battery to help the engine, I can turn my ignition on to the start option and have the battery warm up to around 10-15 seconds then start my precious vehicle.
 

i have a 2019 silverado keyless ignition. How can I do the same or is this longer an option as I haven't found any area to do the same with my key in my key fob.
 

Any suggestions would be greatly appreciated.
 

thank you

 

Push and hold button, without stepping on brake pedal. The whole dash gauge panel will come to life, once held long enough.

[AirForceAngler]

Just turn on your lights. 

[M1ck3y]

Maybe you're thinking of glow plugs on diesel equipment? Doing anything like that prior to starting your truck is just wasting energy that could have been used for the cold start. If you want to warm up your battery take it inside the house and re-install when your ready to go.

Edited January 22, 2022 by M1ck3y

[diyer2]

What? Really? Troll?

[M1ck3y]

21 minutes ago, diyer2 said:

What? Really? Troll?

 

What?

 

Why would you say that? My response was genuinely intended to help answer the op's question.

Edited January 22, 2022 by M1ck3y

[richard wysong]

bunnys right , when its that cold putting a slight load on the bat excites the electrons to get the current flowing before hitting it with the big amp draw from the starter

[M1ck3y]

11 minutes ago, richard wysong said:

bunnys right , when its that cold putting a slight load on the bat excites the electrons to get the current flowing before hitting it with the big amp draw from the starter

 

I agree. Key cycling used to be a thing before vehicles were controlled by computers and battery technology was in its infancy. You won't anything in the owners manual about key cycling if the vehicle fails to start. 

Edited January 22, 2022 by M1ck3y

[diyer2]

OK

Never heard of such a thing. It either starts or it don't. 

[Transient]

I thought these vehicles went through cold weather testing in Canada while being developed

[richard wysong]

maybe not the batteries though. when its that cold if it doesn't fire right off it stands a good chance of flooding cuz the gas won't fully vaporize. I would be using a block heater.that usually keeps it a little warmer under the hood 

[Transient]

Help me understand how they test a vehicle without testing the battery.  The vehicle is turned off and sits at some point during the cold weather testing. 

 

And, there's this from the owner's manual:

 

"If the engine does not start after five to 10 seconds, especially in very cold weather (below −18 °C or 0 °F), it could be flooded with too much gasoline. Try pushing the accelerator pedal all the way to the floor and holding it there while holding the key in START or ENGINE START/STOP for up to a maximum of 15 seconds. Wait at least 15 seconds between each try, to allow the cranking motor to cool down. When the engine starts, let go of the key or button and accelerator. If the vehicle starts briefly but then stops again, do the same thing. This clears the extra gasoline from the engine. Do not race the engine immediately after starting it. Operate the engine and transmission gently until the oil warms up and lubricates all moving parts."

Edited January 25, 2022 by Transient

[richard wysong]

i don't know if you have ever dealt with vehicles in subzero temps but most of the time that doesn't work. you either get it inside to warm it up or you change the plugs and hope it doesn' t flood again when you try to start it. holding it to the floor is supposed to stop fuel flow but the plugs are soaked by then and its hard to get it to start even without gas cuz whats there won't vaporize. so the idea behind putting a draw on the battery is to wake it up and get the electrons flowing to get max amperage when you hit the starter. I don't care where they test it when it's that cold its gonna crank slow even with 2 batteries.

[Transient]

Grew up in Northern Utah.  Below 0°F is not unheard of there.  Spent a couple years living north of Chicago.  -19°F with a wind chill of -40°F is the coldest I can remember experiencing there.  My wife got the garage while I parked outside due to her taking the kids to daycare.  I don't recall ever having an issue with my vehicle starting in the cold.  I've been driving GMs exclusively for over 20 years. 

 

As for GM's cold weather proving grounds, here's some info:  https://gmauthority.com/blog/gm/gm-facilities/gm-canada-facilities/gm-cold-weather-development-center-kapuskasing-ontario-canada/

Edited January 25, 2022 by Transient

[redwngr]

@dabunny

 

Ignore the haters.

 

 

Most every manufacturer is using the wide open throttle (WOT) while cranking thing for clearing floods. 

 

If neither brake or throttle are pressed -- and button held for 10 seconds -- idt will go into an 'accessory mode' which is sometimes desired for troubeshooting without the engine running. 

 

 

And while were at it, when starting, with foot on brake, it is not necessary to hold the button to start -- only a quick 'press and release' is necessary. n

 

 

Button (with foot on brake) does the same thing as using the fob.

Either one sends a 'request to start' signal to the BCM. 

ECM and BCM to whatever checks they do, and when they decide everything is good - (including finishing  the glow plugs on the diesels if necessary) -- they send the crank command. 

 

Releasing the button (or key in vehicles so equipped) does not cancel the request.

 

 

Been 'bump' starting our GMs for many many years.

 

 

 

Edited January 28, 2022 by redwngr