Seven problems related to wiring have been reported for the 2012 Hyundai Sonata. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Hyundai Sonata based on all problems reported for the 2012 Sonata.
Multiple parts have been replaced on my front end from what mechanics thought were the problem but my wheel still sticks/pull to the left while driving even after multiple front end work and alignments. Also, I've replaced head lights, tail lights, breaks and reverse lights numerous times because something keeps blowing them. When I press the volume button on the steering it changes the screen on the radio. I'm assuming it's something with wiring malfunctioning. The cruise control on the wheel doesn't always work as well.
Brake lights go out all the time even after replacing. Have now replaced wiring in both and new problems now the brake light stay on all the time.
Brake peddle sticking not releasing brake lights to turn of in rear. Which caused a shortage. . In electrical wiring that shorted out whole dash system and security including power windows glove department etc. Issues when brake light was not releasing transmission was jumping to gear of reverse and drive with out my control.
While driving on two lane highway vehicle shut down without warning. The car smelled of burning plastic and smoke was coming from passenger side under hood. Car was towed to dealer and motor was replaced thru recall. On 8/20 I was scheduled to pick up and was notified that the main wiring harness had melted badly and that it would not be covered. I filed case #11538113 with Hyundai corporate on 8/20, citing that it appeared to be related to the motor seizing, and/or a safety defect. I was denied assistance on 9/20 and contacted the dealership to begin work at my costs. The car is still at the dealership as they are stating Hyundai cannot release the wiring harness. Research on why brought me to similar compaints the appear to warrant a recall.
Keeps blowing brake lights and tail light bulbs. Found wiring harness fused. Dealer says known problem and call corporate Hyundai for parts coverage of brake lamp assembly. Hyundai says no recall issued for this problem. Vehicle out of warranty after 100,000 miles.
The contact owns a 2012 Hyundai Sonata. While driving various speeds or while the vehicle was parked, the rear brake lights failed to illuminate when the brake pedal was being depressed. The esc traction warning indicator illuminated. The vehicle was taken to tameron Hyundai (1595 montgomery hwy, birmingham, al 35216 (205) 380-6250) where it was diagnosed with a shortage in the wire that connects the brakes to the brake light. Unknown repairs were made, but the failure persisted. The manufacturer was not made aware of the failure. The failure mileage was unknown.
Vehicle was overheating. Took to dealership and was told the wires were melting together and the wiring harness needed to be replaced. After replacing the wiring harness it was one problem after the next that the dealership contributed to the overheating. 3 turbo's replaced, the front and rear wiring harness, the computer control module, some tubes and hoses and 6 mos later. . . . The car seems to be running again but now there is a recall on the transmission. . . Ugh. I tried to have Hyundai let me out of the lease since I only had a few months left. Consumer affairs passed the buck to Hyundai lease and vice versa. It is a nightmare to work with this corporation. Filed a complaint with the bbb and was able to get reimbursed for two payments since they had my car in for repair for over 60 days but they would not let me out of the lease. Will never have a Hyundai again because of Hyundai motor America and the way they pass the buck, will not take responsibility, and take care of their customers. They are a horrible corporation.