Bolt blows hot air when it's supposed to cool or no cooling at all - Chevy Bolt EV Forum
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post #1 of 8 (permalink) Old 06-25-2019, 09:26 AM Thread Starter
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Unhappy Bolt blows hot air when it's supposed to cool or no cooling at all

Usually it happens after first few minutes of cooling. When this happens I had to turn the AC/Heating off.
But if I turn the AC dial to low enough temperature (70), it will continue to work.

I saw other owners described exact same issue online.
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post #2 of 8 (permalink) Old 06-25-2019, 09:50 AM
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Here's a link to a loooong discussion on the subject. There's a TSB for it...see page 3 in the link.
https://www.chevybolt.org/forum/vie...hp?f=11&t=6172
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post #3 of 8 (permalink) Old 06-25-2019, 11:44 AM
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I have tried a few things from the manual, and had to come to a conclusion that the 2017 Bolt HVAC screw-ups are not user-fixable. Initially, I blamed myself for being a caveman, but then I had a 2019 Fusion for a rental car for 3 weeks, with all kinds of modern gadgets, and I had no problem with using its HVAC to my satisfaction. And I loved the rotary knob shifter

I think GM did make some changes to the HVAC controls past MY2017, and I suspect some of the algorithms could be fixed with a software patch.


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post #4 of 8 (permalink) Old 06-25-2019, 11:55 AM
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Originally Posted by The Other Tom View Post
Here's a link to a loooong discussion on the subject. There's a TSB for it...see page 3 in the link.
https://www.chevybolt.org/forum/view...hp?f=11&t=6172
Maybe I'm doing something wrong, but when I click that link I just get the main forum page.
What's the subject of that thread?
I've learned to work with my heating/AC in my '17, but it doesn't do what I expect it to based on my experience with other cars I've owned. ;-)
(I did take it in to the dealer the month after I owned it and they said it was fine..) And to be fair, if I turned it up, it did get warmer. It just wasn't responding that way I expected based on my settings.

Thanx!

2017 Bolt LT - Cajun Red
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post #5 of 8 (permalink) Old 06-25-2019, 12:19 PM
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Hmmm
Seems that when I copy and paste, this forum redirects to this forum
Go to my chevy bolt dot com (remove spaces, etc) and search by subject or author.

Subject:
Is HVAC burning you up too? Chevy says "nothing wrong"

Poster: rybolt

Date:
April 21,2017
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Last edited by The Other Tom; 06-25-2019 at 12:30 PM.
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post #6 of 8 (permalink) Old 06-25-2019, 12:47 PM
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Originally Posted by The Other Tom View Post
Subject:
Is HVAC burning you up too? Chevy says "nothing wrong"
Got it, thanx!

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post #7 of 8 (permalink) Old 06-25-2019, 12:58 PM
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I don't have any problems with the Bolt EV's HVAC. It works great in all circumstances. If I don't want the A/C but only air, I take it out of auto mode, and dial the temperature down until the air flow increases to what I need. In auto mode, if I want faster air flow, again I just dial the temperature down, and than back up to the temperature I want. The temperature control does most of what you want. I never bother with the fan speed control.

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post #8 of 8 (permalink) Old 06-25-2019, 01:08 PM
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I don't have any problems with the Bolt EV's HVAC. It works great in all circumstances.
Yeah, for me, it's not that it doesn't work.
It's just that it doesn't work as expected.
I suppose if I ignored the temperature setting and just turned it up and down as needed, I wouldn't be thinking twice about it.
But I'm not sure it's hitting that temp on the dash I set the right way, and not staying there when it does.
It's not a deal breaker; I just use it as an old school system and try to ignore the temperature setting part of it.
All I know is that my Leaf had a temperature target display as well, and I didn't think that one was off...
The Bolt, I thought something was off right away, and still do.

But it's workable... I just ignore the number and adjust as needed..

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