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Thanks for your post!! I am right there with you!

I have a 2006 Hyundai Tucson (4WD, V6) with the same battery drain problems. The first 2 times I brought it in they told me the battery was testing fine (Of course it did after I drove it 20 minutes to get there!).

I decided to take matters into my own hands!
I dropped the Tucson off on Friday afternoon and let it sit there all weekend +Monday, Tuesday. When I came to the Dealer with my keys on Tuesday afternoon the battery was so dead the key fob wouldn't even unlock the Car! I said congratulations we have "Duplicated the problem"! Call me when it's fixed...

Well they called today and told me the battery would not even hold a charge enough to test the drain. They told me that I would need to purchase a New battery for "Only $140"! I immediately got on the phone w/ Hyundai Customer Service and they contacted the Dealer on my behalf.

Big surprise... the Dealer had a battery available that they could use to test the drain at no cost... Genius!! Glad I thought of it!! After all I'm not an expert... just a 30 year old unemployed single mother!! I'll keep you posted on the outcome.

Your responding to a thread that's over a year and a half old. If you have a question, you should start a new thread.

just doing some thinking here.....i would take to a different hyundai dealer for another opinion....
i worked for for a chevrolet dealer and we were sent all the vehicles that couldn't be repaired by other dealers...
then and only then if we couldn't fix the concerns they, (gm), would sent out engineers to help......i can say we only had an engineer come out once for something we had trouble with (water leak ,cavalier convertible..jeez...who didn't..lol..

i know at gm we would have times where there wouldn't be an electrical draw then something would intermittently stick or go haywire and cause a draw.......these things can sometimes be a nightmare to find....

just for kicks...what have the others had done...and are theirs fixed????

we also had a technical asst center to call and document concerns and get tech help from....they sometimes would have other cases on file from dealers around the country and offer those fixes...
if all else fails .....we did have times when gm had to buy back....lemon laws....
good luck

Hi:

I've tried to find out if other owners with this problem had it resolved, but so far no luck. Most of us have gone round and round on this issue! On another site I read that the 2006 model has "bad alternator charging capability". Is that something that could be fixed or upgraded?

Here's a link to a dead-battery protection device I found when I was Googling battery info:
http://www.batterystuff.com/battery-restoration/switches/PS12Vauto.html

Since there's a drain somewhere I thought this item might be something to look into.

I think I will take it to another dealership for them to look at.

Thanks for the advice!

Karin

any device that would help is always worth looking into....BUT>>>>> i wouldn't install any aftermarket device on the vehicle especially now that you might go into litigation/lemon law stuff.....don't jeopardize anything....
i know the first thing gm tech asst and engineers would ask of is when trying to trouble shoot a concern like this
is "has the vehicle been modified in any way"...."any aftermarket devices on the vehicle...including alarms/remote starters...etc" because sometimes it can turn out that its not a defect in the vehicle but a defect with the device and /or installation.....seen many incorrectly wired in...

just my thoughts.....good luck to you.....hey.....post back with results.............

Hi Jim:

I'm still waiting for the Huyndai rep to contact me; called them today again to tell them to get a move on, since when I went out this morning the car was a little hesitant to start, just like the battery was getting ready to die...again...sigh...

So I drove it to the local Auto Max and had the battery and alternator tested. The tech said that the battery was definitely not charging all the way. Also, he said that although the alternator was reading as ok, it was running a little high. Normal should be 1.6 amps/12.4 volts, and it was 2 amps/14.4 volts.

Maybe it needs a new alternator anyway??

I'll keep you posted!

Thanks!

The guy told you wrong. If an alternator is charging properly, it will have 14 +or - 1/2 volt. The amperage will vary as to how discharged the battery is. The less charge in the battery, the higher the amperage will be.

Agree with way2old - alternator is fine. What's the deal with this car? Are you going after the buyback or do you want to keep it?

A drain that takes out a battery in 4-5 days is still slow but should be able to isolate. This battery should be replaced. Taking a regular (should be) car battery to dead several times will destroy their reserve. A 2006 could have a battery made in 2005 - check on that. Look at the door jam to see when it was built.

I know of just one Lemon Law buy back with a friend. Car needed to be jumped right in front of him when brand new and blew more major items right away than I've ever heard of. It was still a total PITA but he did settle - minus a chunk for the miles he did manage out of it which wasn't much!

T

Hi:

I'd like to get a buy-back, or at least trade-in assistance (full value of what I paid for the car) because I want a 2008 Tucson.

The battery was replaced in early 2007, along with a new radio (drawing too much power).

The Huyndai dealership has twice checked it for all possible drains (they say) and can't find anything (they say!). Would a deep-cycling battery, like the Sears platinum diehard (recommended by a friend) help solve this problem?

Karin

If you are going for a buyback I wouldn't touch the car except for going to another dealer who might fix this problem. The now just a year old battery has still had too much thrown at it. From what you are saying that it's dead to the point of not starting in 4-5 days is draining it about half way down every 2nd day and that's a lot of deep cycling on this. There are batteries made just for that and say so in the sales pitch. These are mostly for use in battery powered devices and frequently in marine uses.

Even those need to be recharged again as none of the "wet" batteries I know of tolerate freezing (if that includes your use) or staying left dead for extended times. Perhaps if you did get a new battery on your own that was lots more powerful and more reserve it would effectively solve the problem or rather cover it up.

Where so you stand with the buyback? I bet at this point you'll be real disappointed and they'll charge you so much for the time and miles it has behaved it would be just like trading in for a new one. If this exact car is known for this then I think Hyundai knows it.

What's with the air bag light? Did that get resolved? That's a real issue and if that can be seen by them they should be climbing all over this car to fix that.

By chance - do you park at a high angle or put something on the passenger's seat routinely? That could explain a lot of this!

T

UPDATE!!

Just was checking on another Tucson site and found this post:

http://tucsondrivers.com/viewtopic.php?f=5&t=2363&p=21812#p21812

The guy had my same exact problem (dead battery; dealership said radio was bad, new radio, still had a dead battery) and it turned out that the 'new' radio Hyundai put in was a remanufactured radio with the same faulty interior component. His dealership pulled it out and had the interior component replaced. I've emailed him for the specifics on this.

Maybe this is what's going on!!

Is it me or what...i clicked on,it says "this requested topic does not exist"

It went up in flames!

T

Pyromanics

Nope. A deep cycling battery will just allow you to charge it up more times than a regular battery. The current draw will still be there and will still run the battery down.