2016 Hyundai Sonata: adaptive cruise control problems

Filed Nov 1, 2023 · Acceleration, Driver assistance · FL

found me driving on I 75 and I put the Cruise Control at 70 miles, instead of maintaining the speed at 70miles the vehicle accelerated to more than 90 miles per hour I had to quickly put my foot on the brake otherwise I could have an accident with the vehicle from the front, after all this happened, I felt the car was losing speed, I tried to accelerate but it did not go over 60 miles per hour. I took it to the mechanic and they did not detect anything in the vehicle's computer. This vehicle also turns off at times when you are driving and it turns off it also spend too much oil motor , I started looking for information on this model of car and I see that there are more than 550 people who have the same problem as me, this is an unsafe vehicle for the road

Filed Sep 12, 2023 · Engine, Fuel system · TX

I keep having the same issue with this vehicle's fuel/propulsion system, power train, engine, cruise control. This vehicle is need it's fuel system cleaned now for a 3rd time in less then 2 years. I have done the high mileage maintenance on it as well. I drive the vehicle less than 5,000 miles a year. When I am driving the vehicle, it struggles to speed up, making me press on the gas repeatedly to get to the indicated speed limit. The vehicle does not slow down as it should when pressing on the brakes. I have to press repeatedly over and over and harder on the brakes in order for it to slow down. The vehicle jerks, speeds up without me pressing on the gas and sometimes it will not stop when prompted. I cannot put this vehicle on cruise control, because it speeds up and out of no where, it accelerates causing me to almost collide with another vehicle or object. Even when the vehicle is not in cruise control, the sudden jerks and acceleration puts me, my children and others in harm when it suddenly speeds up, jerks or will not stop in time. It makes a loud noise and jerks even when the car is in a resting position. It loses power, it speeds up when i need it to stay the same speed or slow down. I fear this vehicle is unsafe. I have reported these issues and a few more to the dealership who never responded, so I had to go over their heads, then finally I got a response from their Consumer Affairs' Department, as well as the BBB and they state because of the vehicle's age and/or mileage there is nothing they can do about it. Please help me. This is the only vehicle I have, and I am a single parent who cannot afford another vehicle. What is going on with this car? Why do I have to keep struggling to pay for something to get fixed and it is still not solved. Below, it ask for a date, but it is multiple dates, not just one. I have listed the first time it occurred. Thank you.

Filed Mar 17, 2023 · Acceleration, Airbags · UT

The airbag light is on, indicating that the airbox is not operating and will not go off in case of an accident. All steering wheel controls also don't work so it's impossible to adjust settings using the steering wheel or to enter cruise control at all. Previous years of this same vehicle had clock spring recalls and this appears to be the same problem so I wonder if the other recalls should be extended to this year vehicle? thanks

Filed Apr 25, 2022 · Engine · IL

While driving on the highway in Michigan I noticed the engine RPM not functioning properly. The timing on the engine was off and the shifting was irregular. I pulled over to the side of the road with fear it was going to do more damage internally to the engine. If I had the cruise control on I was in fear of the engine malfunctioning and causing damage to other vehicles on the road. Upon further inspection I noticed the variable valve censor connector had an electrical shortage and burned a hole right through it. I was afraid of more electrical damage that could have turned into an engine fire. So I didn’t drive it anymore.

Filed Apr 14, 2022 · Engine · CA

We were on a road trip and the car was on cruise control. I stopped accelerating and lost power. We had it towed to the nearest aaa approved mechanic. They ran the codes and found P132600- knock signal range performance. The technician found heavy metal contamination in the oil. The motor needs to be completely replaced