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 Post subject: Weird Behavior
PostPosted: Sun Sep 23, 2018 1:44 pm 
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Joined: Tue Nov 03, 2015 1:39 pm
Posts: 11
So, my wife pulls into the driveway in our 2015 Spark, puts the gear into Park, waits until the garage door opens (sometimes it's slow), then puts the the gear into Drive and the car goes... BACK, as in REVERSE! Needless to say, she did not expect it. I tell her to turn off the car and check it out myself: yep, you put the car into D or L, and it goes back. Being a contrarian, I put the car in Reverse... but it still goes back (not forward). :) So, I disconnect the battery to flush whatever software code it keeps in battery-powered DRAM and to reboot it from some more permanent version of software. I reconnect the battery, restart the car, and now it is back to normal. So, my guess is some bit flipped in the memory. The car is still in warranty for another month, so I will take it for diagnostics. Anyone else experienced such weird behavior?


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 Post subject: Re: Weird Behavior
PostPosted: Tue Sep 25, 2018 6:54 am 
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Joined: Tue Oct 31, 2017 6:25 am
Posts: 135
It's good to document it with the dealer. Very strange indeed.

_________________
2015 Spark EV w/ DCFC 37,XXX miles
2006 Toyota Corolla 5 spd 227,XXX miles


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 Post subject: Re: Weird Behavior
PostPosted: Tue Dec 04, 2018 2:02 pm 
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Joined: Mon Aug 15, 2016 3:27 pm
Posts: 69
I have not had that specific issue, but I am starting to get things like propulsion reduced after being plugged in all day and having 100% charge. Reading other posts, it could be the accessory battery dying. Appa ntly, when it is not providing a high enough charge, the computer can go crazy.


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 Post subject: Re: Weird Behavior
PostPosted: Tue Dec 04, 2018 3:53 pm 
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Joined: Tue Nov 03, 2015 1:39 pm
Posts: 11
So, I took the car to the dealer. Apparently, disconnecting the battery flushes all error codes, if any, so they could not diagnose the problem. The dealer called GM engineers, but they haven't heard of this kind of problem either. My conclusion: we are driving a cheap car where the software aspect is definitely limping. Of course, GM will not fix even the known software issues, since Spark is discontinued, so why invest in support. IMHO, as long as GM will continue to disregard the software aspect, it will always be viewed inferior to Tesla, even if, for example, Bolt specs are very competitive to Tesla. C'mon GM, get you act together! Fix the software glitches, allow over the air updates, support additional apps, like TuneIn, which is NOT working!


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 Post subject: Re: Weird Behavior
PostPosted: Tue Dec 04, 2018 4:56 pm 
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Joined: Wed Oct 30, 2013 7:27 am
Posts: 832
Location: Manteca, California
Kaitsuni wrote:
So, I took the car to the dealer. Apparently, disconnecting the battery flushes all error codes, if any, so they could not diagnose the problem. The dealer called GM engineers, but they haven't heard of this kind of problem either. My conclusion: we are driving a cheap car where the software aspect is definitely limping. Of course, GM will not fix even the known software issues, since Spark is discontinued, so why invest in support. IMHO, as long as GM will continue to disregard the software aspect, it will always be viewed inferior to Tesla, even if, for example, Bolt specs are very competitive to Tesla. C'mon GM, get you act together! Fix the software glitches, allow over the air updates, support additional apps, like TuneIn, which is NOT working!

My vote is the 12 volt AGM battery. There have been a number of "strange behavior" postings on this forum which have been traced to the 12 volt battery. Try charging you battery with a good 12 volt AGM battery charger (BatteryMinder 2012-AGM) with the desulfating option and see if that helps. I make it a point each month to fully charge the 12 volt AGM battery in both my 2014 and 2016 Spark EVs. The BatteryMinder 2012-AGM has an option that allows you to charge through the OBD connector. It works great!


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