Car goes completely dead until push on battery fuse / ABS Electrical Recall the cause?

[beachguy]

All power to my 2015 Hyundai Genesis shut off completely one day - no engine start, no dashboard lights, no trunk function etc. When I pushed the 10a battery fuse (as suggested) the power went back on shortly thereafter.

Power was good for 2 weeks, and then went out again. I tried pushing the 10a battery fuse again, and this time it sparked - BUT... the power still went back on and stayed on for 2 minutes (then went dead for good).

1. I had O'Reillys check the 8 month old battery and of course it was still good.
2. I bought a replacement Micro2 10amp red fuse from Hyundai, but that didn't fix the problem
3. Neither the original fuse or the new fuse looked damaged/broken.

ABS Electrical Recall - Related???
I found out there was a recall for my car with the ABS electrical / fuse being a problem.

VEHICLES ARE EQUIPPED WITH ANTI-LOCK BRAKE SYSTEM ("ABS") MODULES THAT COULD MALFUNCTION INTERNALLY AND CAUSE AN ELECTRICAL SHORT OVER TIME POTENTIALLY RESULTING IN AN ENGINE COMPARTMENT FIRE. AN ELECTRICAL SHORT COULD RESULT IN SIGNIFICANT OVERCURRENT IN THE ABS MODULE

But I called two Hyundai dealers and they said that the power issues related to the recall would only be in the front engine area, and that the battery connection with the 10 amp fuse in the trunk would not be affected by the ABS problem.

I know there are other fuses on the battery terminal box connected to the battery, so maybe one of them is a problem? Although people say that if there is a spark I have a more general problem with the electrical system.

Any help would be GREATELY appreciated
as I don't know what to do or where to tow my car - I can't tow it to a dealer, which is 60 miles away.

 

[Suburbazine]

Positive terminal in battery box is probably shot. You'll need a replacement to get it to hold the battery post correctly. The issue stems from the pot metal used on the terminal and the fact that the battery box is used as a floor support for the trunk.

You could also use copper foil to wrap the post to increase size but performance is poor longterm.

Thread 'Improved positive battery terminal box' Improved positive battery terminal box

 

[Cyiam42]

I have been dealing with this for over a year. Another member posted about the positve post clamp not clamping down on the battery completely due to design issue. He recommended sticking a piece of rubber (cardboard in my case) underneath the corner of the plastic case near the positive bolt terminal and then tightening the terminal down. I did this and have not had one issue since (about two months). Easy fix!!!

 

[jimmy buoy]

I did a post on this for my 2010 Genesis that had the same issue. After taking the positive terminal off and looking at the mechanism, I took it apart and bent the piece that provides pressure onto the post as the bolt is tightened. Kept bending it a bit further until the terminal would barely squeeze onto the post, then when tightened down it really grabbed the post. Not one issue since and that was months ago.

 

[Deebeg]

My 2015 car kept losing complete power when I tried to start it. Dealer couldn't find the problem. I proved to them it was the positive battery connection. They replaced the whole module. If the module is pressed down firmly onto the car battery and tightened before it is fastened to the car body seemed to fix the problem for me.

 

[Dave665genesis]

I have been dealing with this for over a year. Another member posted about the positve post clamp not clamping down on the battery completely due to design issue. He recommended sticking a piece of rubber (cardboard in my case) underneath the corner of the plastic case near the positive bolt terminal and then tightening the terminal down. I did this and have not had one issue since (about two months). Easy fix!!!

 

[Dave665genesis]

I have been dealing with this for only a few months. Thought that my battery was bad and actually went to O’Reilly’s to get new battery and they told me the battery was good. So came back home and reinstalled battery. Wasn’t sure what to do so got online to do some research and found your thread. Went straight out to the car to check positive terminal and just like you said it was loose even though I thought I had tightened it. Took it apart and bent the clamp alittle with screw driver so it would grab post better. Put it on tapped it down into the post and retightened it one last time. I am absolutely sure this was the problem. Thank you so much for this easy fix. Genesis Forever!

 

[Yantou1963]

All power to my 2015 Hyundai Genesis shut off completely one day - no engine start, no dashboard lights, no trunk function etc. When I pushed the 10a battery fuse (as suggested) the power went back on shortly thereafter.

Power was good for 2 weeks, and then went out again. I tried pushing the 10a battery fuse again, and this time it sparked - BUT... the power still went back on and stayed on for 2 minutes (then went dead for good).

1. I had O'Reillys check the 8 month old battery and of course it was still good.
2. I bought a replacement Micro2 10amp red fuse from Hyundai, but that didn't fix the problem
3. Neither the original fuse or the new fuse looked damaged/broken.

ABS Electrical Recall - Related???
I found out there was a recall for my car with the ABS electrical / fuse being a problem.

But I called two Hyundai dealers and they said that the power issues related to the recall would only be in the front engine area, and that the battery connection with the 10 amp fuse in the trunk would not be affected by the ABS problem.

I know there are other fuses on the battery terminal box connected to the battery, so maybe one of them is a problem? Although people say that if there is a spark I have a more general problem with the electrical system.

Any help would be GREATELY appreciated
as I don't know what to do or where to tow my car - I can't tow it to a dealer, which is 60 miles away.

I had the same problem for several weeks . Finally get it resolved by getting battery shims at Antozone and put them on the battery connectors . Problem resolved ever since

 

[skipgen]

I have been dealing with this for only a few months. Thought that my battery was bad and actually went to O’Reilly’s to get new battery and they told me the battery was good. So came back home and reinstalled battery. Wasn’t sure what to do so got online to do some research and found your thread. Went straight out to the car to check positive terminal and just like you said it was loose even though I thought I had tightened it. Took it apart and bent the clamp alittle with screw driver so it would grab post better. Put it on tapped it down into the post and retightened it one last time. I am absolutely sure this was the problem. Thank you so much for this easy fix. Genesis Forever!

I did the same thing to mine when I replaced the battery a couple of years ago - no problems.

 

[mike95ss]

Thank you for this thread!!!!!!

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[G-719326]

All power to my 2015 Hyundai Genesis shut off completely one day - no engine start, no dashboard lights, no trunk function etc. When I pushed the 10a battery fuse (as suggested) the power went back on shortly thereafter.

Power was good for 2 weeks, and then went out again. I tried pushing the 10a battery fuse again, and this time it sparked - BUT... the power still went back on and stayed on for 2 minutes (then went dead for good).

1. I had O'Reillys check the 8 month old battery and of course it was still good.
2. I bought a replacement Micro2 10amp red fuse from Hyundai, but that didn't fix the problem
3. Neither the original fuse or the new fuse looked damaged/broken.

ABS Electrical Recall - Related???
I found out there was a recall for my car with the ABS electrical / fuse being a problem.

But I called two Hyundai dealers and they said that the power issues related to the recall would only be in the front engine area, and that the battery connection with the 10 amp fuse in the trunk would not be affected by the ABS problem.

I know there are other fuses on the battery terminal box connected to the battery, so maybe one of them is a problem? Although people say that if there is a spark I have a more general problem with the electrical system.

Any help would be GREATELY appreciated
as I don't know what to do or where to tow my car - I can't tow it to a dealer, which is 60 miles away.

I had the same thing occur and the coldest day of last winter. I came to this forum and took the advice of others. That was to install battery shims. Evidently there's an engineering problem but how ever the problem came to be, I've not had a problem since and that's been 3 or 4 months ago.