How long are you going to keep your Hummer?

Until the next gen comes out.

Possibly until someone else comes out with convertible Jeep/truck combo that seats five adults with 1000+ HP and a tighter turn radius than a four door Jeep. So…it may be a minute or two.🤣

This is a big slurg for me, so I'm guessing 4-6 years. I normally lease my cars and 3 years in and out, but I figured I will have been waiting 2+ years for this thing, I can't see me getting rid of it in 2-3 years. So yeah I'll be holding on to it for some time.

I have a tendency to not sell things and just add lol.

I generally keep my vehicles for a long time, 10-15 years (just got rid of my 2008 Sierra). I will be retiring in just under 2 years, and my wife thinks this will be the last truck I ever buy.

I am with @azbill still driving my '05 Silverado and I will keep it when I get my Hummer. Probably keep the Hummer a long time unless there are issues with the EV not working for our family's needs...

To clarify, I would get a new one if they introduce either:
1. Massively overhauled exterior
2. Lidar and Level 3+ Super Cruise
3. Solid state battery

I would keep it till the battery warranty runs out (7/8 years). After that, it's a major gamble. There isn't much you can do in terms of preventive maintenance for the high-voltage battery. And it's unclear if individual battery modules motor problems can be fixed by independent mechanics without voiding the main battery warranty.

yokeyokey said:

I would keep it till the battery warranty runs out (7/8 years). After that, it's a major gamble. There isn't much you can do in terms of preventive maintenance for the high-voltage battery. And it's unclear if individual battery modules can be fixed by independent mechanics without voiding the main battery warranty.

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Several questions/points:

Why would you go to an independent mechanic during for warranty repairs?

There is no “main battery”.

All 24 modules aren’t going to go bad at once and the software tells you which module is defective.

GM shares the software with third party vendors.

Shaved Ice said:

Several questions/points:

Why would you go to an independent mechanic during for warranty repairs?

There is no “main battery”.

All 24 modules aren’t going to go bad at once and the software tells you which module is defective.

GM shares the software with third party vendors.

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I meant to type electric motor. Are the motors covered under the same warranty as the battery? Tesla covered the entire drive unit under the 8year warranty but BMW limits it to 4 years I believe.

Is it possible to service individual modules? Tesla refuses to do so even when the capability exists.

Motors are covered by same warranty as the battery. Tesla has to replace the entire single battery if there is a problem. GM intentionally went with modular configuration to allow for individual battery repair.

Shaved Ice said:

Motors are covered by same warranty as the battery. Tesla has to replace the entire single battery if there is a problem. GM intentionally went with modular configuration to allow for individual battery repair.

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And they're still realizing it's more cost effective to swap out the entire battery. I think GM's Ultium design is somewhat of a miss since the entire battery has to come out of the vehicle in order to work on or replace any part of it.

Dark-Fx said:

And they're still realizing it's more cost effective to swap out the entire battery. I think GM's Ultium design is somewhat of a miss since the entire battery has to come out of the vehicle in order to work on or replace any part of it.

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Agree and not certain dealer service staff is ever going to want to pop open a battery and tinker with individual modules and seal it back up safely.

Dark-Fx said:

And they're still realizing it's more cost effective to swap out the entire battery. I think GM's Ultium design is somewhat of a miss since the entire battery has to come out of the vehicle in order to work on or replace any part of it.

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Why is it more cost effective to swap out the entire battery? For Tesla's there are 1-3 companies that do individual single cell repairs (Gruber motors) and they charge around 5-8K, while Tesla quotes a battery replacement at 10-20k depending on model. It's usually a single module or cell that fails. Unless it's water damage, I've never heard of entire battery packs failing. Theoretically, Tesla could rewrite its software to enable the car to run on the other working modules in exchange for a sacrifice in range and acceleration.

It's a new and emerging field and there aren't enough battery "mechanics". I suspect once EVs become more popular, we'll see the costs come down significantly.

yokeyokey said:

Why is it more cost effective to swap out the entire battery? For Tesla's there are 1-3 companies that do individual single cell repairs (Gruber motors) and they charge around 5-8K, while Tesla quotes a battery replacement at 10-20k depending on model. It's usually a single module or cell that fails. Unless it's water damage, I've never heard of entire battery packs failing. Theoretically, Tesla could rewrite its software to enable the car to run on the other working modules in exchange for a sacrifice in range and acceleration.

It's a new and emerging field and there aren't enough battery "mechanics". I suspect once EVs become more popular, we'll see the costs come down significantly.

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Dealer labor rates are expensive. GM replaced entire packs for a sealing issue instead of swapping the existing modules into an new case. I'm not entirely sure how the Tesla service centers operate but I suspect their warranty labor costs are significantly lower overall.

Dark-Fx said:

And they're still realizing it's more cost effective to swap out the entire battery. I think GM's Ultium design is somewhat of a miss since the entire battery has to come out of the vehicle in order to work on or replace any part of it.

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This issue is not unique to GM. I think the battery seal issue underscores the reason the entire pack has to be dropped. If the modules could drop out individually, how would the connections between them even be sealed?

In the Mach E, many have had contactor failures, and replacing those requires the pack to be dropped out and opened up by the dealers to replace the contactor assembly. But the contactors need to be inside the battery, in order to isolate the external world from the 400V, due to safety.

In reality, the labor to drop the battery is not any worse than dropping a transmission, and likely much easier than pulling out a traditional engine.

I believe GM decided to replace this limited number of packs because of the time savings for the trucks already delivered to dealers. If there had been 10k trucks delivered, I do not think they would have done it this way.

Dark-Fx said:

And they're still realizing it's more cost effective to swap out the entire battery. I think GM's Ultium design is somewhat of a miss since the entire battery has to come out of the vehicle in order to work on or replace any part of it.

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They are swapping out the battery because the casing is bad. The batteries are fine. With this being a new product they don’t want dealers screwing it up.

azbill said:

If there had been 10k trucks delivered, I do not think they would have done it this way.

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Watch the Munro video on how the battery is packaged. I would be surprised to ever see the Ultium packs opened up for an issue that could be solved under warranty with a swap.

MarkoLP said:

How long are you guys thinking to keep your Hummer EV for?.
I'm thinking somewhere between right before the factory warranty is up and before it really depreciates.

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Well since I’m already 71, and might be 72 or 73 by the time I actually receive my 3X, ummm, for the rest of my life? Lol