2013 Hyundai Sonata Hybrid Kia Optima - Hybrid System Warning - Do Not Drive - Check Charging System 

Part number should be 375F2-4R150

I just want to say thank you for posting your video. We have a 2012 hybrid Sonata that's been to 4 different dealerships that never solved the problem. They replaced the hybrid battery, 2 12v batteries, and ran diagnostics with no clear results but wanted to replace the transmission that was replaced 30,000 miles ago under the previous owner. So, after watching your video we decided to risk the $75 for the fuse and it worked!! We didn't even have to jump-start it, it cranked right up, the ready light came on, and my husband drove it around for several hours. After about 35 miles the engine light turned off by itself. I'm almost sure that fuse was the problem all along and it never even needed a new hybrid battery. I'm going to write to Hyundai, who, by the way, was of no help at all. I know it won't do any good, but it will make me feel better.

Hey! Just wanted to say I really appreciate you making this video. I was getting the exact same error code on my 2013 Kia optima hybrid. Limped my car home and it wouldn’t start back up after turning it off. Replace battery thinking it was that and still would t turn on. Swapped the 125 fuse with 150 fuse like shown in your video and car started right up!

Sup bro I just want to say thank you so much for posting this video. I just did what you did and my car started up right away. The amount of time, money & stress that you saved me is incredible. Seriously can’t thank you enough

Thanks. I'm gonna change mine this week. You have given me the confidence to try and fix it.

Great video. I ordered fuse with plastic harness for less than $75 and started right up.

Hey man I just want to say thank you for sharing the video I really appreciate that. I did what you did went to the kia dealer because hyundai didn't have it anywhere close by but yeah mines started right up

Thank you for this video ! You saved me a lot of money ! This just happen to me yesterday and by luck the dealer had the PEC fuse in stock and I put it in with a new battery and I was good to go !

Similar warning came on for my daughther'w, 2015 Sonata Hybrid, I did not confirm the "Check Charging" message. I had the car towed, let it sit for a day while I mulled what to do as the issue was still present the next day. My local, non-dealer mechanic came over, cleared the codes to reset them, he wanted to confirm if the codes still popped after being clearning up but same warning lights did not(there were many codes as I had tried to read them with my OBD2 reader). After my mechanic cleared the codes, the car drove fine. Nevertheless, I towed it do the dealer to see if they could find something wrong with it, they did not. I believe they did software/firmware update(free of charge, I believe because they kept the car for so long and wanted a good review(which I gave)) and/or confirmed latest greatest software/firmware. The problem has not repeated(knock on wood), its been 1month, 1 week. I am going to buy this fuse as I believe the issue will re-appear. If it re-appears, this will be my next troubleshooting step before I take it to the dealer again.

I had the same thing happened to me. I took the car to the dealership. The issue was the software program. They updated it never had issue again its been 3 years. One more thing the dealership didn't charge me. They told me it happened other customer and they might have recall to fix the issue. I hope this helps

thank you thejoki04 you just saved me probably $1000 dollars or more by watching your video , I purchased the 150 amp fuse at the KIA dealer ,got home re placed the the fuse and problem solved !

Had this problem once before and this was the fix. Having it again now but I’m pretty sure I just put in another 125 fuse instead of a 150

I have a 2013 Hyundai hybrid with a newer engine and engine battery. I still get the warning but only when I turn on the air. Not sure what to do next.

Question for you...would this cause the car to just stop moving even though its still running? My daughter's 2013 Sonata Hybrid did this to her on Monday and we had it towed to the shop. They said it would be at least 10 days before they can even look at it. The car was still running but not moving and the dash had the loud warning noise and flashing warning. TY very much for posting this information!

I’m having a similar issue. I also tested the fuse with a multimeter and it’s reading as a good fuse. I wonder if I should get the 150a fuse.

This happened to my 2015 sonata, happed like 3 years ago. it's been sitting for 3 years while I was still making payments for it but couldn't drive it and Hyundai wouldn't help at all. I'll give this a try. Because nobody around me works on hybrids. And we'll it's paid off now and just sitting there. So might as well try this as a last resort before I sell it for scrap.

Thanks so much. It worked perfectly

Hi, good vid. Did it give you any codes? Mine says not communicating with HPCU. And check brake.

Hello I have a 2012 Kia Optima hybrid. And it’s giving me that same dashboard warning. With a dinging and flashing check engine light. But my car is still starting up. But when I put it in drive it’s moving really slow… Any advice?

We're on a weekend trip back toward our home and have a 2013 Hyundai Sonata Hybrid with yellow warning lights and beeping. The car seems to be driving the same as normal but the mechanic's scanner couldn't find a code but when she unplugged it, the display in the car said " battery discharge warning ". Of course it's Sunday and dealership in las Vegas is closed. Any ideas are welcome! The beeping is maddening but we're grateful it's running. 400 miles to get home. God willing.

I assume the car is still going strong? I've done this exact fix recently, It fixed the car for about 48 hours then the problem continued. P1B71, P1B70 continues to be thrown and the car displays the hybrid message and to pull over. Now with the 150amp fuse it will turn back on with just a key cycle and acts like normal until EV mode is needed or hard braking occurs.

Hey I just got a 2015 Hyundai sonata hybrid. My bf took it up a mountain now it's having this issue. I can't find the fuse any where to order it. It only gives me the safety cover.

Multifunction indicator lamp (MIL) (check engine light) with hybrid system warning safely stop and do not drive. You think that’s the same thing?

Fuse tested good. Best to upgrade. It was your battery in trunk. Bet shortly after this u swapped the battery

Is this the Yellow Wrench indicator under the display that comes on intermittently in my 2013 Sonata Hybrid?

I experience the same sign , but it says check break and don’t drive . I stopped the car and switch it off. After 5 minutes when I restart the engine, the car was normal and I drove the car to home . I am experiencing this almost every week . Can someone help me to identify the problem ?

Dead post but mine did almost the same thing. I was driving car kinda lost power. Then all my lights freaked out. Now I think my 12v battery is dead too. I tried the mega fuse no avail.

Are you able to link the bulletin for the hyundai sonata hybrid? I have a 2014 and just had the “check charging system” & “do not drive”message come up. My mechanic is stumped and the hyundai techs had no knowledge of the fuse. Thanks

Thanks for the info

Hello brother. I would REALLY appreciate your help or someone else’s help. My 2013 hybrid sonata broke the alternator belt a few nights ago. I changed it but since then I only get that message on the screen “HYBRID SYSTEM WARNING. SAFELY STOP AND DO NOT DRIVE” I literally depend on the car to get to and from work and I don’t have anyone else. I would appreciate a LOT of SOMEONE’s help

do you have a video changing the fuse? or how to change the fuse?

So you don’t think replacing it with 125 amp would work?

What is good fuse reading ? Mine go from 0.5 to 0.1 in 3 seconds when testing it with multimeter is this good or bad?

Thank you!

Hello,when Hybrid Warning came you still was able to drive the car or everything just stopped?

Wow, I'm really hoping this is the problem with my daughter's Kia. I'm willing to risk $65. Do you know if the door in the trunk where this fuse if found is located in the same area on a Kia?

Did u get only a wrench because that’s the only light that comes on for me

Wasn't there a recall on this fuse?

Sorry, but your fix description does not make any sense. The fuse is good or bad, nothing in between. I have replace both fuse and inverter and get the same bad behaviour.

Did you only replace the fuse? Or did you get the entire safety fuse assembly

Does the radio or the USB circuit work?

All 1102 low voltage temp codes?

Sir,are you still answering to questions?)

Sir I don’t understand the attached service link , is it for a different fuse?

So I just had this same issue happen to me on the parkway as soon as I eclipsed that 100,000 mile mark. Just felt I had to throw that out there.. do you recommend the 125 or the 150 amp?

Hello,when Hybrid Warning came you still was able to drive the car or everything just stopped?