2002 Hyundai Sonata electrical problems

Filed Dec 18, 2020 · Electrical, Engine · 77,000 miles · CA · fire

On november 30, 2020 after shopping in food store, starting the cat and coming out of a parking lot and driving the car forward, I smell something burning. Stop & open the front hood and saw smoke coming out of the air filter housing and started to burn. Somebody helped and put out the fire with a fire extinguisher. The car was running hood and my daily driver before the incident.

Filed Jan 17, 2016 · Electrical, Lights · 197,000 miles · NY

Headlight wire harness on drivers side is melted. Pictures taken and uploaded.

Filed Dec 9, 2014 · Electrical, Engine · 156,000 miles · NJ

Alot of problems with this car.

Filed Nov 1, 2012 · Electrical · 186,000 miles · OH

My 2002 hyundai sonata radio comes on and off when ever it wants to and I notice when it rains it makes a really loud noise. I have to replace an alternator 3 times within the last 3 years. Not sure what could be causing this but it is very annoying. Please help!

Filed Sep 17, 2012 · Brakes, Electrical · 115,000 miles · TX · fire

All three rear brakes lights on when ignition is shut off and smell electrical wire burn. Every day need to remove negative terminal from battery to shut off the three rear brakes lights.

Filed Aug 24, 2012 · Driver assistance, Electrical · 135,000 miles · TX

My car started getting erratic idling and then the engine light started to turn on. I got the spark plugs and spark plug wires replaced and then it mild down after around 1wk after, then the erratic idling while on drive or on reverse started again. Left it like that thinking it was maybe the fuel pump or something like that. Had my brother that is a mechanic check it and said he found the spark plug wires out of sequence, but after he made sure all were the correct order the same problem started again, same erratic idling and this time it really did feel like sometimes loosing power. It has gotten worse since then that I was driving, don't recall the MPH, but it must of been around 50 - 60 MPH cause I was on the freeway. The whole engine sporadically, in less than a split second, turns off then on. All the electric panel and the front dashboard and the whole car's electrical system turns off/on in a "blink of an eye". It made the car make an erratic and sudden stop, like if I had put the brakes completely or the engine just stopped that split second. Then it went back on and still driving. After that it did it about 2 more times like around those mins I was driving, about mins apart. After this happened, it's been getting worse and now the power shuts off completely and I have to drive to the side with no power on car. Then suddenly gets power again and I just start it again. I've checked the cables of batteries and they keep telling me I can't get the car checked for codes cause the engine light keeps getting reset since it looses power completely and they can't get any codes unless the engine light is lit up. Sometimes turning signal or putting the brakes or lights on make it stop or loose power completely.

Filed Mar 5, 2011 · Body, Electrical · 148,423 miles · OH · fire

Corrosion of subframe, causing it to break and then catch fire to the car under the hood, destroying wiring and hoses.

Filed Sep 25, 2009 · Electrical · 88,000 miles · MO

Speedometer on 2002 hyundai is defective, the dial just stops working dropping to zero for periods of time - I spoke to the dealership if my car had under 65,000 miles they would fix it free (which seemed to be an awareness of the issue in may car & others).

Filed Sep 13, 2009 · Electrical · MA

Ever since I bought my car on halloween 2007, my 2002 hyundai sonata has had electrical problems. I would put the wipers on and my radio would turn on. My alarm randomly goes off and I can't disconnect it because it is tied in with the main computer for the vehicle ( I was told by mechanic). The doors used to lock by themselves, now they just don't work altogether. The radio cuts out and randomly tries to play a cd regardless of whether or not there is one in it. From the time I test drove the vehicle, the backlight on the radio never worked. Approximately one year later, it all of a sudden began working and works to this day. I have brought this vehicle to the dealer I bought it from for these reasons among others, and he refused to fix them because he didn't know how.

Filed Dec 14, 2008 · Electrical · 116,590 miles · AZ

The battery is often drained and continues to do so all the time I've researched it on the internet and many owners of the 2002 have the same problem, possibly the ignition switch relay. Many have replaced battery, alternator and problems continue. My car is currently draining and dying all the time I have purchased a jump starter for my car. I have to jump my car every time I use it.