Battery Dead Problems of Hyundai Tucson

Vehicle locks and unlocks doors at random, with or without keys in the ignition. Causes battery to fail as it will continue this when not in use. This is the second Hyundai I owned that had this same problem and looking through carfax on used vehicles there are numerous vehicles with repeated electrical problems. The vehicle can be moving or in parked in a garage overnight. Vehicle had me locked inside so long at one point that I was late for a meeting and was about to crawl out a window when I was actually able to use a door. This is a definite safety issue for any type of accident. Rescue could not take place as door could not be opened. This is an on going problem that has not been solved by dealership.

See all problems of the 2005 Hyundai Tucson 🔎.

Dead battery after sitting for 3 days. Replaced battery. Dead battery again a few weeks later, again after sitting for a few days. Used the car a lot over next two months, so car didn't sit idle more than two days at a time. Then the problem reoccured when not driving the car for a few days. Took it to a Hyundai dealer, who couldn't find any problem. Car ok when using it on a regular basis. Then parked it for a few days, and battery died. Took it back to the dealer who still can't find anything wrong with the electrical system. Only solution to the problem seems to be to drive the car every day or keep a trickle charger on the battery when the car sits for more than 2 days.

See all problems of the 2006 Hyundai Tucson 🔎.

Battery discharges overnight. Seems to have something to do with the alarm system, as when the vehicle is locked is when the battery is dead the next day. This happens even when a new battery has been installed. Dealership has been of no help, same problem I was having with my 2007 Hyundai entourage.

Battery power lost when car parked for two days or more numerous times. Once while briefly parked for 15 minutes after an hour drive, I parked to make the call in a remote area using car phone plugged into cigarette lighter. No cell service there and had to walk to a local ranch for help and a jump. Battery required replacement frequently. Dealer tested on two occasions and they could not resolve, replaced battery twice. Ive replaced batteries numerous other times at least every two years. Last visit by aaa tested 1 amp high resistance short in electrical system but good relatively new battery. I now charge the battery about three times a year with a battery charger, taking approximately 8 hours of charge when the battery is dead at home. I do not drive very far out of fear that I'll be stranded. I've used up my 3 aloted aaa visits on this problem.

The contact owns a 2006 Hyundai Tucson. The driver went to start the vehicle, but it would not start. He observed that the battery failed and had it replaced. The vehicle operated normally after the replacement, but the failure recurred nine months later. He connected the battery to a gauge, which indicated that it failed again. Since the battery was less than a year old, he took the vehicle to a dealer. The contact was informed that when the vehicle is parked for 2-3 days, it causes the battery to drain . The mechanic also stated that the battery fails because the radio is causing it to drain, as if it were still activated when the vehicle was idling. This is why the contact was advised to not let the vehicle idle for more than two days. There was no recall for this failure; however, it could be covered under the three years/30,000 mile warranty. The failure mileage was 16,000 and current mileage was 22,000. Updated 3/5/09 the consumer was informed a TSB had been issued regarding the problem. The remedy was to pull the power connector. Updated 03/10/09.