Hyundai Sonata 2013 battery issues

20

Asked by Nov 17, 2014 at 05:56 PM about the 2013 Hyundai Sonata GLS FWD

Question type: Maintenance & Repair

I have a Hyundai Sonata 2013. It has covered 20,000 miles and was working perfectly
for first 2 years. Last month my car's battery died. I called for assistance and jumped
started the vehicle. I also took my vehicle to Hyundai dealership. They didn't find any
issue with the battery. The service guy told me that if this happens again, get the car
towed to dealership directly for checking. After a month again the battery died. I towed
my car to Hyundai service station. This time too they couldn't find anything wrong
neither with the battery nor connections.

Has anyone faced the same issue? What could be the possible reason that battery
drains off in 30-40 days after jump start? Can anyone suggests anything?

11 Answers

14,060

you should have the alternator tested. also have the car tested for a parasitic draw.

1 people found this helpful.
30

I have the same problem and same year. I will park it for a few minutes and randomly sometimes the battery will be completely dead when trying to restart it. After reading a couple forums I am going to try taking the lights off auto first, then if that doesn't make a difference then I'll see about pulling the fuse for the radio (though I read something about the fuse also tied in with the security and something else so not sure if I can pull that.). Anyway, I'm going to start troubleshooting and see where it leads. 2 days ago it died and got it jumped. Drove it about 5 miles to a pep boys and the battery was fully charged and tested good and the alternator was tested and good. I hate troubleshooting cars!

3 people found this helpful.
14,060

That is an extreme draw! There are a couple of good videos on parasitic draw testing newer vehicles. Ericthecarguy.com has a good one, but there are others too. I would suggest trying them it is a little different on the newer cars because of the security and computerization, but not too bad. I think you can do it with a cheap multi meter.

1 people found this helpful.
30

Same here!! Our dealership said the car is almost 3 years old now and to replace the battery. We are trying it today.

3 people found this helpful.
55

Look at the rubber bumper that moves the hood lock switch. Let me tell you the story. I just bought a 13 SE and found that battery drain was about 480 milliamps when I thought everything was off. This is about 100 times what it should be. After reading the owner's manual, I noticed a statement about the entertainment system going into "WARM UP" when the car was unlocked. So-- lock the car and the extra drain will dissappear. Things changed but the current was still high. Reading a little more, I find that the hood switch is part of the lock circuit. Pressing the switch down and locking, the current went to 37 - 45 ma.After releasing the switch, I look up at the hood and notice that there was nothing there to work the switch. A rubber washer did the trick.

5 people found this helpful.
20

brand new 2015 Hyundai Sonata.... 15 months old, 5,600 miles. I only drive it 2-3 times a week. After setting for a few days at Christmas, drove the car a few miles... parked over night... drove the car back a few miles... parked 3-4 hours...got in to leave and it was dead. Only thing showing was a tiny image of a key on the dash. Went and put new batteries in fobs...and still dead. Called service. Said battery dead. Went to get new battery...they said battery fine...alternator not charging. Went to DEALER... they charged battery and said it fine...alternator fine. and said that I just don't drive it enough to keep it charged!!! Called Hyundai ... at first they agreed that that explanation was ridiculous and then confirmed that all the electronic junk on the car (that I don't even subscribe to or use) will run it down when not driven a lot. So... my only solution? Run gas through the car daily so I won't end up stranded!!! Those system should be able to shut down when not being used. I wish I had my 1977 Olds back!!!!!!

2 people found this helpful.
10

my friend have hyudai sonata is 13 year ago need to self sometime the battery aldy take it another ppl if like that the car can self again,

1 people found this helpful.
10

2015 Hyundai Sonata Limited 2.0T, AGM battery would die after 24 hours, cold weather or warm. After numerous trips back to the dealer and they couldn't find anything wrong, we had the satellite Blue Link shut down. Haven't had a problem since. Seems that with the Blue Link, our car at least, was constantly talking to to the satellite, updating it's GPS, and checking in it's status. Once that whole system was shut down, the was no more battery drain. This sucks because the one usable function with Blue Link was the remote start. We'll be installing an aftermarket remote start next summer.

1 people found this helpful.

My car just randomly went dead 2 days ago after normal driving. The tow truck driver got it going again and it's been just fine ever since, but I'm scared it's going to happen again and I will be stranded. Interesting comments

We think we may have solved this mystery no thanks to the dealer. My 2013 Sonata battery randomly died one day without warning. I figured I just needed a new battery since it had been over 2 years. Got a jump with AAA and went and had a brand new battery installed. 48 hours later car battery is dead again! Took it to the dealer and of course, they found nothing wrong. $100 worth of diagnostics and nothing to show for it. And they also said "they had never heard of this issue before" Really? I call bullshit on that. My dad did some reasearch and apparently the "Auto" light switch *may* be the culprit. As a test I kept the "Auto" light switch off. It has been now been 5 days with no issues. I am going to continue this test for another two weeks, and if no issues than I am taking it to the dealer to get it fixed. Thanks to this issue that the dealer could not find I am out $320 for a new battery, diagnostics, and a battery charger I bought to keep in the trunk as a safety measure. Will keep you guys updated!

I have a 2013 Sonata Hybrid. We replaced the 12 v battery January last year and just had to replace the 12 v battery again. Is there a way to get better efficiency from the battery?

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