Yes, there were numerous software rebuilds/updates back in November and the high voltage connectors were upgraded as well. I have over 9300 miles now and it runs fine. You should join the hyundai-forums website as there is lots of info there regarding this problem. Look under "check charging system" when you search the forum.
@@sonatahybrid Is there one for Kia Optima? I have a 2012 Kia Optima Hybrid and I have a problem when I'm in traffic the car starts to accelerate only the RPM goes up to 5k and then goes down and it hits me
@@HoodRichSWERVE I really haven't been able to go to the mechanic, and since I only drive it to a place close to 20 minutes nothing happens but the problem is when the car heats up that's where everything happens I'm going to see if I change the temperature sensor of the transmission
My 2013 Sonata Hybrid w/ 95k miles had similar alerts. Pulled over, reseated the battery connector and restarted with CEL illuminated. Drove to the dealership and they said the battery was reporting low voltage. They updated the software on the transmission and battery systems.
Hi, which battery connector did you re-seat? Was it the 12 volt battery in the trunk or the hybrid battery? And did the 12 volt battery need replacing? I'm past 6 years now with the original 12 volt battery and it still tests great.
That's re-assuring to hear. I re-seated the rectangular hybrid battery connector in the engine bay to the right of the engine (on the 2013 model), I'm sure my re-seating of the connector didn't do anything of real use.
Be very careful around any of the orange cables, they carry 270 volts through them. Any time you need to work near them you should pull the fuse in the trunk for safety.
I don't blame hardworking folks who dare NOT touch any Kia or Hyundai vehicle. With the massive bill they shouldered from the engine failure/engine fire fiasco plus other major safety recalls, guess who will foot the bill eventually?
Just fixed my 2014 Hyundai Sonata hybrid. With mine it was the 12v battery in the trunk, nothing to do with actual batteries that are part of the hybrid system. I noticed this same thing happening that eventually led to a rare cold day in south Texas, then the battery crapped out luckily it was in my garage. Replaced the battery, cost 180.00 car been working great. Just to reiterate that battery had been causing all kinds of little bells and whistles going off in the car for months.
Yes, the 12 volt battery can cause some problems too. Here's a thread about it, I paid $127 for the battery out the door and it was an easy job to do myself. www.hyundai-forums.com/threads/found-it-12v-battery.595921/
hello, my car Hyundai sonata hybrid 2011 has that problem, let me know, check the brakes, someone can help me and tell me that it could be the fault and how I can solve it, and I have gone to several workshops and they do not know the problems
This happened to me but when i turned it back on it didnt have the warning and it worked perfectly fine for the whole day. It hasn't done it but I'm scared it will happen again.
Did u just change the 12v battery and everything was okay?? Please kindly reply to me. Having the same problem. Loosing power wen driving. I checked the 12v and it's now 10v
Hi, yes it was fixed in 2011 and I have had no problems since. You can check out the forum links I posted to see what others have had done to fix this issue.
In my case, the software was reinstalled and the high voltage connectors were replaced. There were a bunch of people with similar problems on the Hyundai forum that I posted a link to that share their experiences as well.
This happen to my car. Dealer says they have to replace HPCU and it will cost 5k. Don’t have that money. Only had the car 6 months. Bought used. Now I’m stuck with it and no idea what to do. Had 1 mechanic try to replace inverter. Still didn’t work. Not sure what to do at this point. Any advice?
They wanted to change my HPCU at first too, but software and high voltage connectors fixed my car. Maybe an HPCU from a wrecked Sonata hybrid would work for you to save a few dollars if that's what it really needs to be replaced. It's a shame that this is still happening to people so many years into production. A used one can be around $700-$800. Check out the Sonata forums when you have time. www.hyundai-forums.com/sonata-all-hybrid-models-yf-lf/129573-check-charging-system.html
sonatahybrid / Same Diagnosis’s,...See My Comments Above !! They replaced the HPCU, OR SO THEY SAID...Still under Warranty So didn’t have to cough up $5,000 Plus. Merry Christmas to me from Hyundai 😊👍👍🎈😂
There recently was a TSB issued by Hyundai for the Sonata Hybrid. This TSB has made the car drive perfectly now and if you have a 2011-2012 Hybrid I strongly suggest you have it performed. 13-FL-004 HEV MULTI-ECU UPDATE -- VERSION 2 Software update of the following controllers: ECM/TCM/HCU/MCU/AHB/OPU by GDS Event#302, and BMS by Event#303. This ECU Update will refine vehicle drivability, HEV transaxle shifts, and cruise control. Applicable Vehicles: 2011-2012 SONATA
If it stops while the engine is on, probably the alternator. You can usually drive with a bad battery, you just won’t be able to start it without a jump.
@@sonatahybrid Hey ! The same problem just happed to me today. Bought the 2015 Hybrid 1 month ago, with 150k miles from the first owner. While i was driving, i received a Warning saying ''Hybrid System Warning! Safety Stop and do not Drive''. Then i received ''Check Charging System". After a tried to Turn On the Vehicle again, i saw a Warning ''Battery Discharge Warning'' into the LCD Screen. And finally, the lights started going crazy so i had to remove the 12v cable to shutdown the Vehicle. Any tips pls?
@@yzrarodrigues307 You need to have any codes read with an OBD reader to start. It can be an issue with the 12 volt battery, but it needs to be tested. Look through this thread and see what others have done to fix it: www.hyundai-forums.com/threads/check-charging-system.129573/#post-953671
Parking it and wait for 5 minuets before starting it up ... what works is to drive it using the shifting it like stick shift will cut it off while you’re driving 👈😊👍 I know this because I have the same problem but found a better solution to drive without turning it off .. your welcome people 👈😊👍 have a blessed day ..
+sonatahybrid yea my gearbox failed and I had to change it, ever since I bought thr car and am experiencing endless problems till this day am facing problems
@@sonatahybrid i have 2013 hyundai sonata hybrid. When i start it in the dashboard shows ENERGY FLOW. After driving for 15 minutes it start loosing power .and say STOP AND DO NOT DRIVE. WHAT SHOULD I DO ?? PLZ HELP
🤪😢Just got the Diagnosis for my “ 2014 Sonata Hybrid Limited” with these Fault Codes,....Guess WHAT ?? I NEED A NEW COMPUTER !!! $4,500 !!!! Plus Labor...OUCH !!! I’m just under the 60,000 mile Limit on the warranty so I’m “Just” covered,....Lucky I Guess, but not HAPPY with HYUNDAI !!! Anyone else have to Go thru this,...& If So, @ How many Miles ???😔
when i got this notification, my car literally broke down and would not move AN INCH, took it into the dealership, cost my dad $2500 bc i wasnt under warranty 🙃
@@abdelazizouighi3345 it was driving on hybrid mode, when it switched to the motor, the engine started to race. I pulled over and the car wouldn't move at all when trying to accelerate. Also sometimes when the transition from hybrid to motor, the car would bang and then the hybrid symbol would pop up with an alarm saying pull over. That car was a nightmare.
Was this for the hybrid or plugin hybrid? Thinking of getting the 2017 regular hybrid. The regular sontata mpg can average around 18 and that’s not good enough to me.
Sorry, I just saw this now. There were some TSBs to correct the issue but you may have a different problem. Check out this forum for some help:www.hyundai-forums.com/sonata-all-hybrid-models-yf-lf/129573-check-charging-system.html
