2018 HYUNDAI TUCSON Complaints

The vehicle has 81,000 miles with regular oil changes. We purchased as a certified pre owned with 45,000 miles on the vehicle. The car had been running perfectly. Last weekend the car was making an awful noise. Today the mechanic tells us the lower unit is knocking and the motor will need replaced. There is no way this should be happening at this mileage especially since the car has been regularly serviced. Hyundai is not even interested in repairing the vehicle, went straight to trying to get me to trade it in. We could have been stranded or killed on the highway and with all of the other complaints about this motor, I can’t believe there hasn’t been a recall.

The contact owns a 2018 Hyundai Tucson. The contact stated while driving approximately 55 MPH, the vehicle lost motive power and decelerated. Additionally, the vehicle was making a ticking sound which became a loud knocking sound. Additionally, the engine was revving however, the vehicle was decelerating. The contact stated that there was no warning light illuminated. The contact pulled off the highway safely and then drove the vehicle to her residence. The contact's husband then drove the vehicle to an independent mechanic who diagnosed that water had entered the engine cylinders and determined that the engine needed to be replaced. The vehicle was not repaired. The contact was informed by the independent mechanic that the failure was related to NHTSA Campaign Number: 21V727000 (Engine). The manufacturer had been informed of the failure. The failure mileage was approximately 78,000.

I have a Hyundai 2018. I bought it in 2019 with about 64,000 miles on it. I keep up with all the maintenance on my SUV. I noticed once I moved from Illinois to Florida, after having the car for a year, it started consuming a lot of oil. I've never had an oil leak anywhere on the car. In November of 2020 I went to Take 5 to get my oil changed and the mechanic said make sure to check my oil often because my truck burns a lot of oil. I'm find myself putting oil in my truck once a week. Every 500 miles it needs oil. The crazy thing is, is that the oil light never once came on. The engine light will come on. I went to a recall appointment 2 weeks ago, which was the same day I got my oil changed June 11, 2022, and I told them about this issue and they did nothing. By June 23rd I needed more oil! I see California has a lawsuit about this issue. I want to trade in my truck because this is costing too much money feeding this truck gas and now oil!

While driving the vehicle, while accelerating the vehicle would lose power or disengage from gas pedal at 17 mph and then again at 26 mph. After about 3 miles the check engine light came on and a TCM warning appeared on the radio screen. Immediately took the car to the dealership and was turned away since I didn’t have an appointment. On my way home from the dealership I made a stop at a store. I reversed out of the parking spot with no issues. When I put the vehicle in drive, it would not accelerate. I could drive in reverse but not forward. Vehicle was towed to the dealership. Diagnostics revealed it was a failed TCM. Further research revealed this same issue occurred in 2016 models. How was this not fixed or prevented in later models?

An oil change was done and part of the transmission pan overflowed and then engine failed.

Left turn signal sporadically works during a left turn. Can be safety issue when turn signal stops mid turn even the slightest turn it can stop working and then when finished turning it turns on again. Reported issue to dealership and is being replaced through extended warranty. Issue is a faulty Multi functional turn signal switch. Had been several month since issue started. I have video if the turn signal failing.

Powertrain issue. Multiple times the after stopping the engine revs for a few seconds and then the vehicle will lurch forward. It acts like the CVT transmission has a delayed response to the accelerator. The condition comes and goes and sometimes it happens multiple times in the same trip.

Powertrain issue. Multiple times the after stopping the engine revs for a few seconds and then the vehicle will lurch forward. It acts like the CVT transmission has a delayed response to the accelerator. The condition comes and goes and sometimes it happens multiple times in the same trip.

The contact owns a 2018 Hyundai Tucson. The contact stated that while driving up a hill, the vehicle lost motive power. While driving the vehicle at undisclosed speeds and turning, the vehicle hesitated and then accelerated. There were no warning lights illuminated. The vehicle was taken to the local dealer where however, the mechanic was unable to duplicate the failure. The vehicle was not diagnosed. The manufacturer was not contacted. The failure mileage was approximately 100,000.

Driving down the road, accelerated to speed limit, but the car slowed down and the RPM's stayed at 2000. The car just stopped running and I was able to pull over into the middle lane. Towed to dealership, 6 weeks min. to diagnose until we know what happened . DANGEROUS!!!