Last post on Jul 30, 2012 at 8:53 AM
You are in the Hyundai Tucson
What is this discussion about?
Hyundai Tucson, SUV
#5 of 55 Radio draining the battery
Mar 10, 2008 (1:22 pm)
I copied this from another place:
airflyte, "Hyundai Tucson Maintenance and Repair" #10, 13 Jan 2007 12:57 pm#9
After my Tucson sits for two days, the battery goes dead. I took it to a Hyundai dealer and they showed me the Technical Service Bulletin for the Sonata, Tucson and Azera. The Bulletin number is 06-90-015, dated March 2006. The Bulletin states, "If the vehicle has to be stored for a long time, the power connector should be disconnected to prevent battery drain." I told the service manager that the car had only sat for two days, not for a long time. Their remedy was to pull the power connector (short connector) which is a 30amp fuse, located in the relay box passenger compartment. I would like to know if anyone else has this problem?
On another board I frequent, one Tucson owner had the same type problem you are describing. In his case the problem turned out to be a problem with the factory radio. Maybe your dealer should check that out. At the very least they should be able to determine what devices/accessories are still drawing current when the vehicle is off.
That bulletin 06-90-015 covers 2006-2007 model and said the radio is M280. But the M280 was used on 2005 model, too. So the battery problem on 2005 model is very likely caused by the radio, too.
#7 of 55 Re: Radio draining the battery [greatcars]
Apr 27, 2008 (5:56 pm)
TSB 07-90-007 came out in July 2007. It directly states:
"Some Tucson vehicles equipped with the M280 audio receiver may exhibit a discharged battery if left parked, without being started or driven, for 2-3 days or more."
It lists that a re-manufactured radio should be replaced (likely a previously broken one with the defect worked out).
Take that TSB number to your dealer, and they should be able to help you.
Search for that TSB number on the internet and you can actually obtain a direct printout of the TSB to take with you as well.
#8 of 55 defective radio on 06 tucson
Jul 01, 2008 (9:14 am)
thanks to edmunds i was able to have my radio replaced and eliminate dead battery problems. My car would go dead after a few days of not driving. The dealer said everything was fine but two weeks later same problem dead battery. I told of edmunds. com and similar problems they replaced m 280 radio and guess what--no more problems
Oct 27, 2008 (10:31 pm)
If you have a Hyundai Tucson 2005 or later-and are having battery going dead problems-most likely you do have a parasitic drain problem going on-I did-but my dealership denied it at first! they did replace my battery the one time-but after it would sit for a while it went dead also-the radio in my car was faulty-and it would make the computer think that it was on-even though I did turn it off-and everything else with it-I LEFT NOTHING ON!!! it would still drain the battery because of this radio-I just wanted to let everyone else know that may be your problem also-and it's nothing you are doing!! I almost lost my job-having to get up and try and jump this new car off-not expecting to have any problems with it-It has a good warranty but if the dealership won't recognize there's a problem-then you've just got to show them there is a problem! Mine got fixed-have had no problems since!-If they don't want to accept there is a problem-leave it with them and they'll see within a day or two-it won't start! hope ya'll get what you need out of these dealerships-you just have to work them! and don't let them have any slack!!! And by all means-THANK YOU EDMUNDS!!! I WOULD NOT HAVE EVER FOUND THIS PROBLEM!
#10 of 55 Re: Radio draining the battery [greatcars]
Apr 27, 2009 (9:11 am)
I have exactly the same problem with my 2007 Tucson. I have a battery charger permantly set up near my car so I can restart it in a hurry. It's a bit rediculous. I am going to store it at an airport in a few days so I'll probably have to unplub the battery before I leave. That will be difficult with a baby in a stroller at 5 a.m. but it will save me when I arrive home at 11 p.m. three nights later. Or I'll need to park near a power outlet somewhere!
I'll look into the factory radio problem. Thanks for your advice. My problem is very randon. It only happens about once a week, but I don't use the car daily so it's probably those times I leave it for a couple of days.
#12 of 55 Battery Drainage
Feb 10, 2010 (6:15 pm)
I'm having problems with battery drainage that has happened once a week for the last 3 weeks. The battery has been replaced and the problem still exists. My power door locks also lock/unlock by themselves or just don't work. My local garage hasn't been able to determine the problem and the dealer wants $125 just to diagnose if there is a problem. Any suggestions?
#13 of 55 Battery Drainage
Mar 12, 2010 (10:21 am)
I just read the post dated Feb 10, 2010 (6:15 pm). I am having the exact same problem with by battery drainage (have since replaced it) and my power door locks also lock/unlock by themselves or just don't work. I now manually lock my doors and have not had a dead battery since. Just wondering if there are any suggestions or could it possibly be the radio problem that is causing the battery to go dead as I have read in a previous post? Thanks for any help on this!
#14 of 55 Re: Battery Drainage [amt2]
Mar 12, 2010 (11:50 am)
I had the same problem for a while. I replaced the car battery, and still had the problem with the locks.
Took it into the dealer and they changed the computer that controls the security system. But I still had the problem.
Finally, they changed the Drivers Door Master Switch (all the buttons in the driver side door armrest). They told me that Hyundai told them that they havd found that a bad door lock switch has sometimes caused this. On my repair slip they mention Case # 3707735. This has taken care of the problem. You guys may want to talk to you dealers about this. - CJ