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Hyundai XG350 sudden acceleration problems

29 of the 319 owner complaints about the Hyundai XG350 describe sudden unintended acceleration, most of them for the 2005 model year.

owner complaints
29
worst model year
2005
typical mileage
21,608
Is there a fix? No recall or service bulletin covers this area of the car yet.

By model year

What owners say

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 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 Mar 12, 2013 · Acceleration, Airbags · IN · crash

2005 hyundai xg350l. Consumer writes in regards to vehicle sudden acceleration accident. *smd the consumer stated as she was preparing to park in an angle parking space along the west side, ground level, of the parking garage, she pressed the brake pedal to slow the vehicle to make a right turn into the parking space, it suddenly accelerated resulting in a severe collision with the concrete wall. As the vehicle accelerate forward, the consumer depressed the brake pedal as hard as she could. Also, the air bag did not deploy in the accident. The vehicle was declared totaled.

Filed May 9, 2011 · Transmission · 65,450 miles · FL · crash · 2 injuries

On monday 2 may 2011 at approx. 1645, I was operating my 2005 hyundai xg-350 l in the cvs parking lot on columbia pike in arlington, virginia. I pulled slowly into a parking space in front of the building. While my foot was on the brake pedal, the vehicle suddenly accelerated speed toward the building. I depressed the brake pedal firmly but the vehicle continue forward over a parking berm and curb stone before striking the building. Damage to the vehicle was extensive. The building was also damaged and two cvs employees reported suffering minor injuries from the incident.

Filed Feb 14, 2011 · Acceleration · 1,500 miles · GA · crash

Tl*the contact owns a 2005 hyundai xg350. The contact stated that the vehicle attempted to surge forward while it was stopped with his foot on the brake pedal. The contact applied heavy pressure to the brake pedal to keep the vehicle stopped. The failure occurred four times. One of the failures resulted in a crash. A police report was not filed and no injuries were reported. The vehicle was taken to an authorized dealer once where they were unable to diagnose the failure. The vehicle was not repaired. The failure mileage was 1,500 and the current mileage was 44,000.

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 Aug 28, 2010 · Engine · 135,000 miles · OK

2002 hyundai xg350 sudden acceleration when starting off from a stop. Car starts off slow then suddenly accelerates causing the car to lunge forward. Also, car will run smooth then start cutting out and can't get the car to go any faster than 40mph. Dealer has replaced several computer modules but did not cure the symptoms.

Filed Jul 26, 2010 · Acceleration · 90,000 miles · NY

On three occasions over about 4-5 month period ending july 2010 I experienced sudden unintended acceleration with my 2005 hyundai xgl350. The first 2 times I was stopped at a red light and the car started to accelerate unexpectedly. I already had the brake depressed for the traffic stop and had to press the brake as hard as possible to prevent the car from taking off. The unexpected acceleration surge lasted about 5 seconds then ended. The car did move forward but in both cases I did not have any injuries or damages. I did not take the car in for service after either of these incidents. The third incident happened on july 25, 2010 in norfolk, va. I was parking between two cars in a restaurant parking lot. The parking space faced a curb which boarded some floral landscaping. With my foot on the brake at all times I very slowly pulled in and started bringing the car to a stop the car about 3 - 4 feet from the curb. Before the car came to a stop it began to unexpectedly rev up and accelerate forward. I pressed on the brake as hard as possible but the car's front wheels manage to climb over the curb and move the front of the car into bushes before the acceleration ended and I was able to regain control of the car. I put the car in reverse and backed down over the curb. On that same day I drove the car for about 12 hours returning from virginia to new york and did not experience any unexpected acceleration problems. I plan to bring the car into the hyundai service on july 27, 2010 to investigate and hopefully fix the problem.

Filed May 4, 2010 · Acceleration · AL · crash

2005 hyundai xg350l - intermittently when depressing the accelerator pedal, vehicle will not respond and after a few seconds will surge forward. This occurred when pulling into parking lot and upon removing foot from the gas pedal, the vehicle surged forward. The vehicle jumped a 10" curb and took out a support column. The vehicle then hit the front of the building.

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.

Related recalls

No recalls on record for this model year.

Questions about the Hyundai XG350 sudden acceleration

Which Hyundai XG350 years have sudden unintended acceleration problems?

The model years with the most reports are 2005 (12 complaints), 2004 (11 complaints) and 2002 (5 complaints).

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