2004 Hyundai XG350 acceleration problems

Filed Dec 17, 2017 · Acceleration · 69,241 miles · IL

Unintended acceleration. We have reported this defect to hyundai dealers and corporate office to no avail. U.s. Transportation secretary ray lahood, march 2010, announced two major investigations designed to answer safety issues of unintended vehicle acceleration for all manufactures. What have you at the federal safety agency identified and addressed as potential vehicle-related causes of unintended acceleration?

Filed Oct 25, 2016 · Acceleration · 104,000 miles · AZ · crash

Car experienced spontaneous acceleration ending in accident that totaled vehicle. Backed out of driveway, put car in drive, took foot off brake, didn't yet accelerate, car jolted with high rpms and caused accident.

Filed Jan 9, 2014 · Acceleration, Body · 136,000 miles · NY

I was driving and rusted subframe collapsed control arm & right axel broke also power steering belt broke. I was able to get over nearly having an accident. I had my car repaired in 2010 as per recall yet I tried to push for sub frame replacement over repair at that time with no luck. I believe these sub frames that were repaired should be replaced. This is an extremely dangerous situation I could have been killed!

Filed Dec 13, 2013 · Acceleration, Airbags · 53,000 miles · CA · crash

Tl* the contact owns a 2004 hyundai xg350. The contact stated that while driving approximately 30 MPH, the vehicle erroneously accelerated to a very high rate of speed and the contact could not stop the vehicle by applying the brakes. The vehicle proceeded to travel through an intersection where a second vehicle crashed into the driver's side of the contact's vehicle. The driver and front seat passenger sustained injuries to the back. The driver of the second vehicle involved in the crash sustained minor head injuries. A police report was not filed. The contact also stated that the side and front air bags failed to deploy during the crash. The vehicle was diagnosed but the cause of the air bag and acceleration failure was not determined. The manufacturer was notified of the failure but no solution was offered. The failure mileage was 53,000.

Filed Dec 5, 2013 · Acceleration · 89,000 miles · KY

I own a 2004 hyundai xg350l that is having accelerator issues. On several occasions, while stopped / idling, or slowing down, the vehicle will suddenly accelerate. This is while the brake is being applied. I can be setting at a stop light or stop sign with foot on the brake, not the accelerator, ( I do not drive with both feet like some people incorrectly do : ) and suddenly the car will rev up and try and accelerate forward. In other cases, I can be slowing down with brake applied, and again, the vehicle will accelerate forward. I have to really "mash" the brake to prevent the car from accelerating forward. Once I bring the car to a stop, and the car is still trying to accelerate, I will have to put the shifter into neutral, and turn the car off. I can let the car sit for several minutes, restart it, and it will usually be back to normal. Luckily, I have not had any accidents as a result of this issue, as some of the other people who have posted complaints have......yet. On several other occasions, it has been just the opposite..........I will be driving down the road at any given speed, and suddenly the car will just stop accelerating & go to an idle. You can press the gas petal to the floor, and the accelerator will not respond. The car will remain running, but will only idle. I once had to drive approx. 8 miles, in the emergency lane, at an idle speed of about 5-10 MPH to reach my destination : ( these where once sporadic occurrences, but now happens on a daily bases. I just recently replaced the throttle position sensor, and this did not fix the problem. I have learned that it could be caused by the "accelerator petal position sensor"; hyundai pn:35357-3b011. There is obviously a serious issue w/ accelerator problems w/ the xg350, sonata & santa fe, that hyundai needs to address. I have read of cases w/ hyundai acceleration problems that have caused deaths.

Filed Feb 20, 2013 · Acceleration, Engine · 106,000 miles · OH

I have a 2004 hyundai xg350. Many times when I leave the car overnight (or for a few hours) and then start it back again, the gear does not engage when I put it in drive. When I press the accelerator, after a few seconds, the gear engages suddenly and the car lurches forward. The problem persists for the first few minutes while I am driving. So when I am making a turn, again the car has to start from zero, so it wouldn't move for the first few seconds and just jump forward. This can be very risky at times, especially on turns. Once the engine is heated up, there is no problem. I have also found other people facing same issue but not fix for this problem yet. I wish a class action lawsuit could be filed against hyundai.

Filed Feb 28, 2011 · Acceleration · 38,000 miles · NY

Tl*the contact owns a 2004 hyundai xg350. The contact stated that while driving 15 MPH the rpms increased excessively and the vehicle tried to accelerate. While depressing the brake pedal and shifting the vehicle in park, the vehicle did not move forward. The vehicle was taken to the dealer who performed a diagnostic test, a road test drive and found nothing wrong with the vehicle. The manufacturer was contacted and a claim number 54264 was filed. A representative from the manufacturer inspected the vehicle and found nothing wrong with it. The failure mileage was 38,000. Updated 03/31/11*lj updated 04/22/11

Filed Nov 29, 2010 · Acceleration · 50,000 miles · WV · crash

We have a 2004 hyundai xg 350, on at least a half a dozen occasions, while coming to a stop, the car would suddenly accelerate and would not stop while pressing on the brake, luckily we were able to avoid any accidents. We took it to our local hyundai dealer on 10/20/10, they told us it was the throttle position sensor, they replaced it, said it was fixed. Yesterday, 11/28/10, it did the exact same thing again, only this time we weren't as lucky. My husband tried to stop as he pulled into our driveway, the car suddenly accelerated, and he ran into the front of our house. The front bumper of the car has minimal damage, our house has a huge dent in the front of it. Needless to say, it could have been much worse, he wasn't injured, but he or someone else could have been. The car is currently at our local dealership again, they called today and said they couldn't find a problem with it and hyundai says they have no record of this problem on this model of car, so imagine my surprise to find several complaints on the federal safety agency website. Someone is covering up this problem somewhere, I hope it doesn't take someone getting seriously injured or killed for something to be done about it.

Filed Feb 24, 2010 · Acceleration · 15,948 miles · NV

Hyundai xg350 year 2004 model had unintended acceleration problem. The car jumped the curb when pulling into a parking spot. My foot was on the brake as evidence by my daughter. I tried to break numerous times, and finally the car got caught up on a bush. It was as if the gas pedal was stuck. The car just would not stop, and it was slightly damaged. Hyundai replaced the car, but rewrote the loan with the 10 k original down payment getting lost in the paperwork. Reporting this because I did not know of this forum back then. Contacted an attorney, but they said there was nothing that could be done with the matter.

Filed Feb 5, 2010 · Acceleration · 91,000 miles · IL

While at slower speed trying to slow down by applying brakes ,car accelerated on its own..seems like brake had no effect to slow down the car..as I was about to hit car in front of mine , I shifted auto transmission stick of my car in parking mode while feet on brake..I was scared hell..never had happened like this ever driving.