2004 Hyundai Sonata electrical problems

Filed Sep 19, 2023 · Electrical, Engine · CA

UNKNOWN, I recently purchased it from a dealership in Lemon Grove Cailfornia. Ever since I bought it,it has never had a catalytic converter and only one muffler. It is a 2.7L motor DOHC and requires 2 catalytic converters and dual exhaust due to the double overhead cam. It has cause motor oil into my engine block and has coughed my heater core. Also blown head gasket. I have hired certified ASE mechanics to replace parts and then I run into another problem.

Filed Feb 20, 2021 · Electrical, Suspension · KY

I entered my VIN number on the has buddy app and it says that I have a recall for suspension but called a dealer and they said that it doesn't. Something is wrong with the wiring too because my doors lock at random times my seat goes forward and back randomly my speakers don't work. When I hit a bump jt feels like my tires are gonna fall off

Filed Mar 8, 2019 · Electrical, Suspension · 207,000 miles · MO

Sub frame on front passenger rusted and corroded. Caused damange to cv axle on same side. Caused alignment issues on front end. Causes tires to wear quickly, within a week. Anti theft system locks the car while driving and causes alarm to sound while driving and must open other doors and stop driving to stop the alarm from going off, headlights and dash lights and tail lights come on when brake is pressed and go off when brake is released but this problem only happens when headlights are not in use

Filed Feb 27, 2019 · Electrical, Engine · DE

Leaking valve cover is allowing oil to leak down onto the alternator. Car can be stationary or running. Most notable when car engine is running. Oil leaking onto alternator can cause alternator to short. Alternator failed and car battery could not charge battery. Car died while my wife was driving and she had to pull quickly off to the side of the road.

Filed Apr 30, 2017 · Electrical, Suspension · 127,949 miles · PA

Suspension failure july 2016-both engine mounts and lower control arms failed. Replaced 2016 july. April 2017 both engine mounts and lower control arms failed again. In addition violent jerking while driving,then loss of power. Usually occurred going up hills,coming off from making a turn or driving speeds under 25mph.brake lights remain on unable to indicate stopping to other cars.unable to safely drive and maneuver the vehicle. Brake lights remain on whether driving or in park. Jerking does not occur when putting vehicle in gear,but while driving speed decreases rapidly and car becomes difficult to steer. Suspension feels lose in addition there are noises as if bolts are broken. Per a recall search campaign 089 is open meaning under body isn't coated. Upon further reading of the campaign suspension failure can occur and other issues. Unsure if all related,but the brake lights,and jerking occurred the same time as suspension failed,which was previously replaced.huge safety issues for the driver and other motorists around,especially when jerking occurs. It should be noted,per an internet search these issues are known issues with this make model and year. All issues seen online happen with cars at or around the 130,000 mile mark.

Filed Mar 2, 2015 · Electrical, Lights · 15,000 miles · NY

Tl* the contact owns a 2004 hyundai sonata. The contact stated that the headlights failed to illuminate. The vehicle was taken to an independent mechanic, who replaced both the driver and the passenger bulbs on four occasions, but the failure recurred. The manufacturer was notified of the failure. The failure mileage was not available. Updated 04/08/15

Filed Jan 29, 2015 · Airbags, Electrical · 110,000 miles · MD

Tl*the contact owns a 2004 hyundai sonata. The contact stated that the driver side air bag light illuminated while the seat was occupied. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 110,000.

Filed Aug 22, 2014 · Electrical · 100,000 miles · WA

The horn started sounding for no reason in our driveway. The hyundai dealership confirmed that the horn switch in the drivers side airbag assembly is broken and in the closed position. The part cost is a ridiculous $1,000.00. All airbag assemblies in all the local wrecking yards also have broken horn switches. How can this be allowed? The horn is a very necessary safety device that should last the entire life of a vehicle. Why hasn't a recall notice been issued for this condition? [xxx] information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Mar 5, 2014 · Brakes, Electrical · CA

I called hyundai regarding the brake lamp recall issue in my car. I have the same issue of my brake lamps. When you depress the brakes the lamps are always illuminated it only goes off when the car is turned off. This causes several people to mistake if I am braking or not. I have read several peoples complaints on the recall website, and all of us are told that " the recall has not affected your car" after giving them the VIN. Well I say it is. I have the very problem spoke of in the recall. Second the recall does not say the car must also be unable to come out of park. There are three separate issues. I want this car looked at how can several cars in different states have the same problem, with the same year car????

Filed Feb 15, 2012 · Electrical, Lights · 99,549 miles · FL

Emergency flashers on my 2004 hyundai sonata began flashing for no apparent reason and could not be turned off (ignition was off), this continued for 15-30 minutes from the time it was noticed (neighbors knocked at the door to report that the flashers had been left on). The occurrence repeated several times throughout the night and the next day. Accessing the vehicle using the keyless entry, the doors re-locked themselves, and this repeated each time I unlocked them. The flashers stopped when the door was open or the car was turned on, but when the door was opened there was a clicking noise in the dash (at the same rate as the flashers had been flashing). We took it to the dealer for repair and they said it is the emergency flasher 4-way switch (part #937903c000) -- which is on national back-order for one month! This part is apparently not covered on the gold plus protection plan!