Pre-condition cabin? - Chevy Bolt EV Forum
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post #1 of 13 (permalink) Old 06-21-2019, 09:59 AM Thread Starter
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Question Pre-condition cabin?

Good day all,

I test-drove a 2019 Premier yesterday - wow is the best way to describe it!

I do have a question: does the car support cabin temperature "pre-conditioning", i.e. while plugged in at home (or wherever), can the car's HVAC be set to heat the cabin to a desired temperature and not use the HVB to do so (keeping the battery SOC at the current level)?

I tried to find the owner's manual online to no luck so I thought I would ask here.

Thanks!
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post #2 of 13 (permalink) Old 06-21-2019, 10:13 AM
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post #3 of 13 (permalink) Old 06-21-2019, 10:25 AM Thread Starter
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Awesome, thanks!
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post #4 of 13 (permalink) Old 06-21-2019, 10:31 AM
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Originally Posted by paulcreediii View Post
Good day all,

I test-drove a 2019 Premier yesterday - wow is the best way to describe it!

I do have a question: does the car support cabin temperature "pre-conditioning", i.e. while plugged in at home (or wherever), can the car's HVAC be set to heat the cabin to a desired temperature and not use the HVB to do so (keeping the battery SOC at the current level)?

I tried to find the owner's manual online to no luck so I thought I would ask here.


Thanks!
You can find the manual here:
https://www.dropbox.com/s/dmln7qqper...anual.PDF?dl=0

2018 Mosaic Black Metallic with factory black bow tie kit.
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post #5 of 13 (permalink) Old 06-21-2019, 10:35 AM Thread Starter
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Thank you!!
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post #6 of 13 (permalink) Old 06-21-2019, 11:40 AM
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Good day all,

I tried to find the owner's manual online to no luck so I thought I would ask here.

Thanks!

Or here.
For the US anyway.
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post #7 of 13 (permalink) Old 06-21-2019, 12:52 PM
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Originally Posted by paulcreediii View Post
...does the car support cabin temperature "pre-conditioning", i.e. while plugged in at home (or wherever), can the car's HVAC be set to heat the cabin to a desired temperature and not use the HVB to do so (keeping the battery SOC at the current level)?
Yes, as long as the charger that you're using can supply enough power to run the heater (it takes around 6kW at full power). In practical terms, that means a 240V/30A or 32A charger. If you use a charger with less capacity then the deficit comes from the HV battery.

Preconditioning needs to be started manually (from the key fob or from the MyChevy app while you have OnStar basic service) - as far as I know it can't be scheduled to start at a certain time. I use my key fob which is strong enough to reach the car in my detached garage around 30 feet from the house. I don't use KeyPass, I just rely on the direct RF signal from the fob.
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post #8 of 13 (permalink) Old 06-21-2019, 12:53 PM Thread Starter
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Yes, as long as the charger that you're using can supply enough power to run the heater (it takes around 6kW at full power). In practical terms, that means a 240V/30A or 32A charger. If you use a charger with less capacity then the deficit comes from the HV battery.
Thank you!
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post #9 of 13 (permalink) Old 06-21-2019, 02:14 PM
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Originally Posted by Sean Nelson View Post
Yes, as long as the charger that you're using can supply enough power to run the heater (it takes around 6kW at full power). In practical terms, that means a 240V/30A or 32A charger. If you use a charger with less capacity then the deficit comes from the HV battery.

Page 40 of the manual says simply when plugged in. Interesting that it wouldn't use the OE EVSE as a power source. It doesn't state the difference.


Jeez. A quick search...alright. Could be way more than 1440W to run everything. I do so wish they would certify the OE one for 240V if only to draw 2880W anyway for a little less battery use.

Last edited by Bolt2019; 06-21-2019 at 02:22 PM.
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post #10 of 13 (permalink) Old 06-21-2019, 04:40 PM Thread Starter
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Page 40 of the manual says simply when plugged in. Interesting that it wouldn't use the OE EVSE as a power source. It doesn't state the difference.


Jeez. A quick search...alright. Could be way more than 1440W to run everything. I do so wish they would certify the OE one for 240V if only to draw 2880W anyway for a little less battery use.
I'm coming from a Ford Fusion Energi that can pre-condition using only the wall 120V cable's draw and leaves the HVB alone (assuming it's fully charged).
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