We think we left our wipers on and now the wry is completely dead. I connected the charger but only the Power light comes on and is not transitioning to green. Is that normal? Does anyone have any suggestions?
Why do you think you left the wipers on? Is it because they were halfway up the windshield when you found the 12V battery dead?
I found a dead 12V battery 3 times. The first time I thought I must have left the headlights on, but now I doubt that since it happened twice again when I know I left nothing on. Each time, the wipers were out of their parked position and the hatchback was locked. Each time all was well after a jumpstart. It might be just coincidence, but each time I had plugged the car in to charge the HV battery overnight and left it plugged in for at least half the next day, well after the battery was charged to 100%.
I had the car in the shop twice. The first time they didn't find anything wrong (I doubt that they looked very hard). The second time was the next day; this time it appears that they might have fixed the problem. It hasn't happened again in 2-1/2 weeks. Here's what they had to say the second time:
From discussion with my rep, this is a random issue on select 2019 cars, the solution that SMART of Boston has discovered is to roll-back firmware. I live down near Philly but called my rep after the first time this occurred. I jumped car (seems to be a false drained 12v). The wipers go from normal and then move around windshield as battery 'dies', also the horn beeps. I have not yet had time to take mine to local SMART repair facility for 'fix'. Todd (in Boston) said most SMART repair centers won't be aware fix for issue, his dealership is simply due to number of electrics they sold (and repaired).
Mine has now done this twice overnight and once in an afternoon when I left for just a few hours while plugged-in. Doesn't matter if using my level 2 or the charger that came with the car. First was around 100 miles, last was a week ago around 900 miles.
I think I found this (cough) "undocumented feature" (cough, cough):
The windshield wiper stalk has four positions. Fully up is off, pulling down one click is intermittent's, then one more is normal, then last one at bottom is high speed. (Just the opposite of my wife's ford focus.)
Intermittent and normal wiping still work after the car is off and the key's removed! I have never had or seen another car do this, have you? And worse, high speed wiping at bottom pull down position does a half wipe and just stops.
I suspect, even though it is stopped, it may still be causing a drain on the 12v Battery.
This may explain what happened to Liklbaby.
Can anybody verify if this is true for their 453 ed/eq too?