23 Yukon Denali, Dead battery, won’t start from day 1. SOS

HawkDenali12 · Apr 10, 2023

Took delivery 3 days ago.
200 miles on the clock, battery has been dead every time from day 1.
Charged overnight, 2x50 mile trips didn’t help.
The only thing that gets the Yukon to start is a live jump.

Has anyone experienced this ? Once started codes clear, drives fine.

Chad G 1979 · Apr 10, 2023

Take it to a dealer, it is likely a bad battery or loos connection somewhere.

swathdiver · Apr 10, 2023

HawkDenali12 said:
Took delivery 3 days ago.
200 miles on the clock, battery has been dead every time from day 1.
Charged overnight, 2x50 mile trips didn’t help.
The only thing that gets the Yukon to start is a live jump.

Has anyone experienced this ? Once started codes clear, drives fine.

It's probably something draining it. But since it's new, take it to the dealer and have them check it out.

Mean_Green · Apr 10, 2023

Mega Money Machine goes to the dealer. It's what warranties are for.

B-train · Apr 10, 2023

Probably got killed if it was a vehicle that sat for months in a parking area. Warranty it and don't monkey with it

GMCnewbee · Apr 10, 2023

Agreed, the battery probably got run down at the Dealer. Since it will not charge back up definitely have them replace it with a new battery. My 2022 Denali has been doing just fine. 10k miles on it now.

nickf84 · Apr 10, 2023

Mine did the same thing. Picked it up in October of 2022. Then randomly 3 or 4 days after pick up with no signs of dead battery just showed "Steering Colum Lock Service". Weird thing was it powered up all accessories just wouldn't start. Took it to local dealer, they charged it up and was fine for roughly 6 months. Recently on a road trip accidentally drained the battery while waiting for a ferry in Seattle and even after driving it 500+ miles around, it never charged back up to normal. Took it to dealer and had them swap the battery out. Dealer documentation showed battery health was 0%. Hopefully this fixes it. But we have been carrying a NOCO jump pack in the Denali since the 1st incident and it came in really handy recently. Hoping the new battery fixes it all. Good luck with your truck outside of the battery, these things are awesome. Not that it matters but I have the 3.0L Duramax.

HawkDenali12 · Apr 10, 2023

nickf84 said:
Mine did the same thing. Picked it up in October of 2022. Then randomly 3 or 4 days after pick up with no signs of dead battery just showed "Steering Colum Lock Service". Weird thing was it powered up all accessories just wouldn't start. Took it to local dealer, they charged it up and was fine for roughly 6 months. Recently on a road trip accidentally drained the battery while waiting for a ferry in Seattle and even after driving it 500+ miles around, it never charged back up to normal. Took it to dealer and had them swap the battery out. Dealer documentation showed battery health was 0%. Hopefully this fixes it. But we have been carrying a NOCO jump pack in the Denali since the 1st incident and it came in really handy recently. Hoping the new battery fixes it all. Good luck with your truck outside of the battery, these things are awesome. Not that it matters but I have the 3.0L Duramax.

I’m taking it into GMC Bellevue today. Let’s hope it’s just the batter.

flajax · Apr 13, 2023

HawkDenali12 said:
I’m taking it into GMC Bellevue today. Let’s hope it’s just the batter.

Any update on this?

tom3 · Apr 13, 2023

I suspect the current Delcos aren't what they used to be. Had a new battery put in our '19 as a PM deal. Charges at 15 volts a lot of the time, never goes into the low charge deal on long trips like it did before. From what I read that is a sulfate deal for a battery that has been sitting for a good while. Took back to the dealer and they say there's nothing wrong. Hope they do you right and get it fixed. Might get a voltage tester and plug it in the power outlet, monitor the charge rate if there's any doubt.

23 Yukon Denali, Dead battery, won’t start from day 1. SOS

HawkDenali12

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Chad G 1979

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swathdiver

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Mean_Green

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B-train

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GMCnewbee

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nickf84

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HawkDenali12

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flajax

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tom3

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