2012 genesis battery

[shel]

I parked and locked my 2012 genesis for 5 days with temps going below 32 deg (about 27) at night and above 50 during the day. After the 5th day the battery was dead, smart key could not unlock door. After jump start and diving 200 miles, no farther problem. Dealer service manager said battery was good and that in future I should lock car by double clicking smart key lock button to put car in dormant mode. I looked in manual for that instruction and could not find it. Can someone comment on where to find the instruction.

 

[Mark_888]

Sounds like BS to me, but not sure.

Do you have the Tech Package? Some owners in previous model years have had battery problems on Tech Package trim.

One thing I would do next time you have to leave the car sitting for awhile is to turn off the sound system before turning off the engine, wait a few seconds and shut off engine, and then wait a few seconds more before you open the door. Maybe the remote locking has the same effect.

 

[homeofstone]

Check and see if you have the small rubber tab that pushes the switch down for the alarm system under the hood. when this rubber tab is missing the switch is not depressed and the car's systems stay on. There is a TSB on this and several treads in the forum.

 

[scottdk]

Check and see if you have the small rubber tab that pushes the switch down for the alarm system under the hood. when this rubber tab is missing the switch is not depressed and the car's systems stay on. There is a TSB on this and several treads in the forum.

+1 ^

 

[QuantumRift]

We purchased our 2012 Genny (prem & tech pkg) in August. It now has only 4200 miles on it, so we don't drive it a lot. The entire MONTH of October here, it sat in the driveway, locked, while we were in Ohio. The next day after we got back, I used the fob to unlock the doors, got in an fired it up.

I would have the battery checked again by another shop just in case. It is very possible you have a wonky battery. New batteries can fail just as easily as old batteries just keep on going and going and going.

 

[ctrcbob]

Check and see if you have the small rubber tab that pushes the switch down for the alarm system under the hood. when this rubber tab is missing the switch is not depressed and the car's systems stay on. There is a TSB on this and several treads in the forum.

Bet you dollars to donuts this is the problem. Sometimes the rubber tab is removed in error from the driver side of the hood. Like homeofstone said, if it is missing, there is nothing to push down on the switch when hood is closed, and battery goes dead.

 

[shel]

Thanks for info. I have tech pacs and the rubber tab is ok. I have sent message to Hyundai about service manager's advice about double clicking smart key. No response yet.

 

[rwlewis]

Thanks for info. I have tech pacs and the rubber tab is ok. I have sent message to Hyundai about service manager's advice about double clicking smart key. No response yet.

The switch bumper that pushes the button is easily confused with the hood bumper that the hood rests on when closed....see pic.

 

[shel]

It's the right tab.

 

[black3.8]

~2000 miles and needed a new battery. Didn't have enough cranking amps. Apparently not a common thing to happen.

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[OneFunGenesis]

Hyundai batteries were always shit. They have been since the beginning and so are Kia's. Thus the reason I never recommend a Hyundai Hybrid. They cant keep the regular batteries charged! haha.

Seriously though. We used to have Jump Boxes stashed inside cars on the lot because so many of the batteries would die (in new cars mind you) while just sitting on the lot....

 

[Vaguy]

I tried to start my new (less than 500 miles) 2012 R-Spec today and it was dead. Hooked up jumper cables from my truck (correctly) and no improvment. I currently have a charger on the battery. I guess I'll let it set for the rest of the day and try it again. I take it that it could be a missing tab under the hood or the radio is not shutting off completely. My service department told me it could also be that I hit the start stop button one time too many when I shut off the car causing it to remain in accessory mode. If anyone out there has another take on this I would be glad to hear it. As of right now I'm dead in Virginia. Maybe I have a bum battery; yes or no, I am certainly bummed out.

 

[OneFunGenesis]

Battery or alternator. If you drained your battery so far that a jump wont help, then you've probably killed that sucka haha

 

[jnc2000]

I've always thrown a trickle charger on my batteries just for shits once a month... no matter what the make or model.

 

[Gurkha]

I've always thrown a trickle charger on my batteries just for shits once a month... no matter what the make or model.

I have one installed in the engine bay since the car may sit for a few weeks at a time during the winter.
Hooks up like a block heater to trickle charge. Never had an issue starting and worth the trouble for sure.

 

[jediscuba]

I parked and locked my 2012 genesis for 5 days with temps going below 32 deg (about 27) at night and above 50 during the day. After the 5th day the battery was dead, smart key could not unlock door. After jump start and diving 200 miles, no farther problem. Dealer service manager said battery was good and that in future I should lock car by double clicking smart key lock button to put car in dormant mode. I looked in manual for that instruction and could not find it. Can someone comment on where to find the instruction.

I had a similar problem but ME, the dummy found out that I was the cause and not the design of the cat. I had filled up with gas on my way home. I probably hit the trunk unlock instead of the gas door button. I remember having to activate the gas door a second time for it to open for the attendant. I then drove home and parked the car where it stayed for two weeks while I was away on vacation. When I tried to open the door, remotely, nothing happened. I used the back up key on the driver's and needless to say, the engine would not start or even click. When I went to open the trunk to check the battery and possibly connect a charger . . Duh, the trunk was ajar . . . it didn't look open but was not locked closed. The little bit that it was open permitted the interior lights to stay on, thus draining the battery . . . LESSON LEARNED

 

[PMCErnie]

I had a similar problem but ME, the dummy found out that I was the cause and not the design of the cat. I had filled up with gas on my way home. I probably hit the trunk unlock instead of the gas door button. I remember having to activate the gas door a second time for it to open for the attendant. I then drove home and parked the car where it stayed for two weeks while I was away on vacation. When I tried to open the door, remotely, nothing happened. I used the back up key on the driver's and needless to say, the engine would not start or even click. When I went to open the trunk to check the battery and possibly connect a charger . . Duh, the trunk was ajar . . . it didn't look open but was not locked closed. The little bit that it was open permitted the interior lights to stay on, thus draining the battery . . . LESSON LEARNED

My '09 Ford Taurus would have automatically shut down that circuit after X minutes, thus saving the battery.