# Need help understanding messages in GEM rider information center LCD display

**URL:** <https://community.electricforum.com/t/need-help-understanding-messages-in-gem-rider-information-center-lcd-display/12993>\
**Category:** GEM Forum\
**Created:** [November 4, 2017, 1:48pm UTC](https://community.electricforum.com/t/need-help-understanding-messages-in-gem-rider-information-center-lcd-display/12993 "2017-11-04T13:48:32Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![khoyer](https://avatars.discourse-cdn.com/v4/letter/k/9dc877/32.png) [@khoyer](https://community.electricforum.com/u/khoyer)\
**Post date:** [November 4, 2017, 1:48pm UTC](https://community.electricforum.com/t/need-help-understanding-messages-in-gem-rider-information-center-lcd-display/12993/1 "2017-11-04T13:48:32Z")

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I just bought a 2017 GEM E4, and I need some help deciphering some of the messages that appear in the rectangular LCD area of the rider information center as I press the mode button. Some of them are described in the manual, but a couple are not. First one I need help with looks like this:

AC E 0.0

The second one only appears while the GEM is plugged in, and looks like this after having been fully charged:

ETR27:44

Any help you can provide is appreciated. Thanks.

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**Author:** ![DonnieInNC](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/donnieinnc/32/553_2.png) [@DonnieInNC](https://community.electricforum.com/u/DonnieInNC)\
**Post date:** [November 5, 2017, 4:25am UTC](https://community.electricforum.com/t/need-help-understanding-messages-in-gem-rider-information-center-lcd-display/12993/2 "2017-11-05T04:25:52Z")

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A phone call to the dealer would be my first choice…

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**Author:** ![khoyer](https://avatars.discourse-cdn.com/v4/letter/k/9dc877/32.png) [@khoyer](https://community.electricforum.com/u/khoyer)\
**Post date:** [November 5, 2017, 2:52pm UTC](https://community.electricforum.com/t/need-help-understanding-messages-in-gem-rider-information-center-lcd-display/12993/3 "2017-11-05T14:52:38Z")

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Was unable to get in touch with anyone at the dealership who could answer this question over the weekend, nor could I find anything on the internet that shed light on this, so I thought I would try here.

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**Author:** ![Gem\_e2](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/gem_e2/32/1849_2.png) [@Gem\_e2](https://community.electricforum.com/u/Gem_e2)\
**Post date:** [November 5, 2017, 4:33pm UTC](https://community.electricforum.com/t/need-help-understanding-messages-in-gem-rider-information-center-lcd-display/12993/4 "2017-11-05T16:33:07Z")

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Hi  
i have look in the manual did not see anything  
it dont looks like any error codes  
can it be som driving info ?  
like AC E 0.0 acceleration efficiency rate EFF ?  
did it change then you drive ?

and ETR27:44 can be something like Estimated Time Remaining charge ?  
did it take 27 minutes to charge ?

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**Author:** ![Gem\_e2](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/gem_e2/32/1849_2.png) [@Gem\_e2](https://community.electricforum.com/u/Gem_e2)\
**Post date:** [November 5, 2017, 5:10pm UTC](https://community.electricforum.com/t/need-help-understanding-messages-in-gem-rider-information-center-lcd-display/12993/5 "2017-11-05T17:10:34Z")

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Hi think AC E 0.0 can be same as on old style gem 2010 2011 cars totally KWh charged

this is from older cars 2013 manual…  
e-meter to display accumulated power consumed  
from grid, shown in kilowatt hours (kWh).

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**Author:** ![khoyer](https://avatars.discourse-cdn.com/v4/letter/k/9dc877/32.png) [@khoyer](https://community.electricforum.com/u/khoyer)\
**Post date:** [November 6, 2017, 1:34am UTC](https://community.electricforum.com/t/need-help-understanding-messages-in-gem-rider-information-center-lcd-display/12993/6 "2017-11-06T01:34:37Z")

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It looks like the guess that the “AC E x.x” message represents power consumed during charging is probably correct. When I first plugged it in tonight, the number displayed was 8.7. During charging, the number increased gradually and once charging was completed it read 10.1.

The ETR message appears to be a crude estimate of how much time remains until it is fully charged. It started off at 4:47, and as I checked in on it occassionally, it was decreasing (faster than the estimate). It took under 2 hours to fully charge (from a starting point of about 89%). Now the ETR message is no longer being displayed. Not sure why it showed 27:44 the last time it fully charged, seems odd.

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**Author:** ![Gem\_e2](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/gem_e2/32/1849_2.png) [@Gem\_e2](https://community.electricforum.com/u/Gem_e2)\
**Post date:** [November 6, 2017, 5:25pm UTC](https://community.electricforum.com/t/need-help-understanding-messages-in-gem-rider-information-center-lcd-display/12993/7 "2017-11-06T17:25:16Z")

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ok thanks for info  
these Gem cars are new for us here on forum so not much infos
