2001 Hyundai Sonata acceleration problems

Filed Dec 30, 2013 · Acceleration, Engine · 20,000 miles · MA

As I was driving down the road at apprx 30 MPH. The car would de celerate. I would have to take my foot off the gas and then put back on to get the car to move. Also at the same time the car would bang into gear from park and into reverse. I was told it needed a new transmission. The car was purchased new out of the showroom with 10 miles on it and 6 months later a new transmission. ( well we were told at the time it was brand new, I have since learned that it was a rebuilt) shame on the dealer for lying to customers. The car did ok till about 3 months ago. The car will decelerate and I have to do what I stated above. Then cant get out of park and the traction control light comes on. This has happened numerous times. A new brake switch was put in and the car was fine for 7 full days and on the 8th day same thing. So back we go to the dealers and they are really rude and not happy to see me at all . ( I don't' want to see them either) I was told same problem and another switch has been put in this is the third one. The other issue is we are not being notified of recalls. And the dealership is so rude. Will never own another one.

Filed Feb 18, 2011 · Acceleration · 82,300 miles · NM

Tl*the contact owns a 2001 hyundai sonata. The contact stated that while driving approximately 20 to 25 MPH when the vehicle suddenly accelerated without warning. Even after applying the brakes it continued to accelerate. The driver was able to stop by using the emergency brake. The vehicle was inspected by a independent mechanic who advised the contact that he was unable to diagnose the failure. The failure mileage was approximately 82,300. The VIN was unavailable.

Filed Apr 6, 2009 · Acceleration, Body · 124,000 miles · KY

Tl*the contact owns a 2001 hyundai sonata. While driving approximately 55 MPH on normal road conditions, the contact heard a loud noise outside of the vehicle. The engine began to reduce power without assistance. There were no warning indicators illuminated on the instrument panel. The vehicle was driven cautiously to an authorized dealer for inspection and they replaced the frame cross member assembly and speed sensor. The failure mileage was 124,000 and current mileage was 130,000. Updated 04-23-09 *bf updated 04/30/09.

Filed Sep 28, 2004 · Acceleration, Brakes · 28,000 miles · PA

While driving, thr vehicle jerked to a stop. It was discovered that speed sensor was defective. The vehicle was taken to the dealer, but the manufacture will not accept responsibility. *ak the brakes had worn away, one brake pad was missing, there was a loud grinding sound in the rear of the vehicle and the vehicle refused to shift when turning corners. The service dealer found it nessasary to replace the rear oxygen sensor and found that the output speed sensor was faulty. *sc

Filed Jun 28, 2004 · Acceleration, Airbags · 63,000 miles · OH · crash · 1 injury

I heard a repetitive clicking sound and turned my radio off to listen. The noise didn't change when I slowed down and I resumed my normal speed of 60 MPH. After a few seconds the car slowly & gradually began pulling to the left. I was unable to steer the vehicle at all and was moving into the shoulder and median between the highways. I tried to apply my brakes but the car was not responding. I had no steering or brakes and was heading towards oncoming traffic at 60 MPH. I hit the end of a guard rail and the air bags did not deploy. These cars are not safe to drive! We also had a problem w/it hesitating when it tried to switch gears & the dealership was unable to fix. And the driver window would not stay in the track and shut properly.

Filed Jun 21, 2002 · Acceleration, Airbags · OH · crash · 1 injury

Vehicle was involved in a frontal collision at 35-40 MPH and neither air bag deployed. Dealer and manufacturer were not notified at this time. *ak consumer also stated that he was stopping the vehicle when it stalled then suddenly it sped forward, even as consumer applied the brakes. Even after pulling the emergency brake, the vehicle continued on hi rev. There was one injury.

Filed Jun 21, 2002 · Acceleration, Brakes · OH · crash

While applying brakes for a stop light vehicle suddenly accelerated was force vehicle into an intersection, and get involved in a frontal collision with an ongong vehicle. Dealer and manufacuerer were not notified at this time. Feel free to provide any further infromation.

Filed Jun 13, 2002 · Acceleration · PA

While driving at any speed vehicle will not accelerate and will slowdown rapidly. Cause unknown. Dealer notified.

Filed Oct 11, 2001 · Acceleration · IL

While driving rpms go up high, idle will not drop. Vehicle accelerated suddenly and unexpectedly without warning. Car drives over 40 without foot on gas. Hard time braking because engine is too high. Has been going on since had car. Dealer adjusted cable and didn't work. Almost went thru dealer wall when bringing it in for repair. Is in repair shop again because problem was not fixed. Car is unsafe and had near collisions.

Filed Jul 11, 2001 · Acceleration · MN · crash · 1 injury

Vehicle accelerated suddenly ,resulting in a collision, and causing minor injuries to driver. *ak consumer states this accident happened the day that the vehicle was going to be taken to the dealer for this sudden acceleration problem.