10.0

really awful
Crashes / Fires:
3 / 7
Injuries / Deaths:
3 / 0
Average Mileage:
17,972 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2018 Hyundai Tucson engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2018 Hyundai Tucson:

Unsubscribe any time. We don't sell/share your email.

2018 Hyundai Tucson Owner Comments (Page 3 of 7)

« Read the previous 20 complaints

problem #82

Jan 152023

Tucson

  • miles

A D V E R T I S E M E N T S

Compression test found cylinder 3 @ 58. Found cylinder leakage between cylinder 2 & 3. Engine replacement suggested by dealer. Vehicle has 149990. Dealer also stated engine is warp which is not included in diagnostic statement. Dealer engine replacement cost $12,324.23

- Lusby, MD, USA

problem #81

Mar 112022

Tucson

  • 30,000 miles
The contact owns a 2018 Hyundai Tuscan. The contact stated that while her daughter was operating the vehicle, the check engine warning light illuminated, and the vehicle inadvertently decelerated to 30 MPH. The vehicle was taken to the local dealer and the contact was informed that the failure was due to a faulty sensor, which had malfunctioned when the oil change was due. The contact stated that the failure had occurred on several occasions when the oil change was due. The vehicle was not yet repaired. The manufacturer was not yet notified of the failure. The failure mileage was 30,000. The VIN was not available.

- Brick, NJ, USA

problem #80

Jan 022023

Tucson

  • miles
The oil plug fell out of my Tuscon while I driving on the highway and it burned out my entire engine on January 2, 2023, at approximately 5:40 pm EST. The tech at the dealership found the plug in the tray under the spot where the plug goes. It was inspected by a technician at a Hyundai dealership. The car is a 2018 Tuscon--had less than 55,000 miles on it and is now basically worthless and undrivable, quoted $13,000 to fix it. My entire engine now needs to be replaced. I was within the lifespan of my last oil change when the plug fell out. A red oil light flickered on and then a battery subsequently came on. Within approximately three minutes of the light first flickering on, the car was dead on the side of the highway. The car would not turn over once it was stopped on the side of the highway. The car is still at the dealership and available for inspection as of today, but I am not sure how long it will be there because I am not sure what is the best path forward in terms of repair because of the financial cost. I'm lucky that I was able to navigate my car onto the shoulder of the highway and secure a tow without injury. It was a very foggy day and it was already dark when this occurred and I was afraid I would be struck if I exited my car. My car drifted to a stop at the start of an exit ramp with a highway barrier that prevented me from going farther right onto the shoulder.

- Flint, MI, USA

problem #79

Dec 102022

Tucson

  • miles

A D V E R T I S E M E N T S

Engine (1.6-liter turbocharged direct-injection four-cylinder) had a catastrophic failure driving along highway. Engine instantly lost power and stalled. No indicators on instrument cluster prior to engine stall, temperature gauge for coolant indicating nominal conditions. Upon pulling over to the side of the road, check engine & batter indicator lights shown on the instrument cluster. Hyundai's roadside assistance system, Bluelink, did not activate with the engine's stall. It was observed that a mix of antifreeze and oils were dripping behind the engine onto the ground. Dealer later discovered that a piston connection rod had punched through the wall of the engine block. Dealer has submitted issue to Hyundai Corporate. Vehicle is aggressively service with manufacture dealerships according to recommended service intervals with synthetic fluids.

- Shrewsbury, PA, USA

problem #78

Nov 252022

Tucson

  • miles
Vehicle stalls when accelerating at low speeds. It appears to be a delay when the car transitions from 1st to 2nd gear. This creates a safety concern, especially when taking turns into traffic due to delays/stalls when turning.

- Vernon Hills, IL, USA

problem #77

Sep 032022

Tucson

  • miles
I went to get an oil change on Sept 3, 2022. After that oil change my car went back to normal but started to slow down in speed. On my way home my vehicle stalled. The more I drove the slower it got and loud grind it would make. My vehicle stalling could've caused an accident. My vehicle had a recall done March 21, 2021, which after Sept 7, 2022, I received a letter for a recall for a sensor for my vehicle that was issue per Hyundai website March 31, 2021. Hyundai has been able to confirm the issue. Only thing warning sign I received was my vehicle cut off the day I got the oil change Sept 3, 2022. We thought it may have been my battery.

- North Little Rock, AR, USA

problem #76

Nov 012022

Tucson

  • 96,200 miles

A D V E R T I S E M E N T S

The contact's daughter owns a 2018 Hyundai Tucson. The contact's daughter stated that while driving approximately 65 MPH, the vehicle began to lose motive power. The daughter stated that she depressed the accelerator pedal and the vehicle engine revved; however, the vehicle failed to respond. The daughter stated that she pulled over and stopped the vehicle and placed the vehicle in park(P). The vehicle was turned off and restarted and operated as designed. The contact's daughter stated that the vehicle was making hissing sounds while depressing the accelerator pedal. The daughter stated that the failure was intermittent; however, the failure occurred while driving over 50 MPH. The daughter stated that the check engine warning light was flashing. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the engine needed to be replaced. The vehicle had not been repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 96,200.

- Lynchburg, VA, USA

problem #75

Nov 122022

Tucson

  • miles
The car will jerk while driving. The problem was fixed last year and again it is happening now.Worse..the car while being driven will suddenly slow down inspite stepping more on the gas pedal.

- Las Vegas, NV, USA

problem #74

Oct 122022

Tucson

  • miles
I-€™ve been having an issue with the car -€œjerking rapidly-€ when in traffic and rolling slowly and when climbing relatively small hills, it began about 2 months ago but have become progressively worse over the last month. I was told by someone with a similar vehicle that it is the -€œlower arm control. Need help with is or if there is a recall

- Orlando, FL, USA

problem #73

Nov 032022

Tucson

  • miles
The oil fuel tank has been burning oil too fast in the GDI Engine & the oil has burnt through my alternator and spark plugs that I recently fixed only three weeks ago. This caused the engine to lock up completely while I was driving several times & I lost control while driving - having to restart the car multiple times to move it to a safe area. Now, the engine has locked permanently and I am unable to start the car at all despite replacing several parts and getting an oil change every 3-5000 miles (which continues to leak too quickly and harm other parts in the car).

- Jonesboro, GA, USA

problem #72

Oct 072022

Tucson

  • miles

A D V E R T I S E M E N T S

Knock sensor recall was done in May 2022. Brought vehicle into service for Ac problem and oil change, which was completed. Was on highway going home 65 mph speed limit hit a hill, my engine light started flashing, my transmission downshifted and I lost all accelaration while on hill, speed wouldn-€™t go any higher then 50 at that point. Got to closest gas station and had car towed back to dealership, I just want to point out that the knock sensor is going to put people in danger in certain situations like myself, I am not to happy.

- Greeneville, TN, USA

problem #71

Sep 052022

Tucson

  • 90,000 miles
The contact owns a 2018 Hyundai Tucson. The contact stated that while her daughter was driving approximately 70 MPH, she started to hear a loud pinging noise coming from the engine compartment. The contact stated that her daughter stated that the check engine warning light illuminated and she steered the vehicle to a highway off ramp as the vehicle began to lose motive power. The contact said her daughter saw that several unknown warning lights were illuminated. The contact stated that the vehicle then stalled. The contact stated that her daughter called for a tow truck and had the vehicle taken to the dealer. The dealer diagnosed the vehicle and found metal shavings inside the oil pan and determined that the engine had failed and needed to be replaced. The vehicle had not been repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 90,000.

- Brewton, AL, USA

problem #70

Sep 282022

Tucson

  • 46,000 miles
The contact owns a 2018 Hyundai Tucson. The contact stated that while her daughter was driving approximately 65 MPH, she heard a noise coming from the engine compartment. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic for routine services and the mechanic was made aware of the failure. The contact stated that while the mechanic was test driving the vehicle at 40 MPH, the engine blew out. The vehicle was towed back to the facility. The contact was made aware of Service Campaign: 966 (Engine Monitoring Logic Update). The manufacturer was not made aware of failure. The approximate failure mileage was 46,000.

- Allenstown, NH, USA

problem #69

Sep 132022

Tucson

  • miles
The engine caught on fire, it was considered totaled loss. I settled with the insurance and not sure if the car is still available for inspection. My safety was put at risk because I was driving the car when it happened. I did not get injured because I was able to get out of the car. There was no recall from what I know. The car was inspected by GEICO which is why it was considered totaled loss. There was no warning before the fire. The car was in great condition.

- Raleigh, NC, USA

problem #68

Sep 012022

Tucson

  • miles
ENGINE LIGHTS continues to turn on every other day or so I took my car to get its regular Oil change and expressed this to one of the service reps about this issue they told me They couldn-€™t do anything about it because once they turned on the vehicle the light came off. A few days ago my engine started Blinking and I started panicking since I was on a highway from a road trip my car started making this awful cackling noise and I had To call a tow to then get told That this can take WEEKS TO FIX and NO RENTALS CAN BE PROVIDED WHEN I AM CLEARLY IN A DIFFERENT STATE THEN WHERE I LIVE! Hyundai IS ONCE OF THE WORST AUTO I HAVE EVER DELT WITH! Absolutely not Help I was practically stranded on an issue that Had nothing to do with me! The engine light came Out of no where

- Winsted, CT, USA

problem #67

Aug 262022

Tucson

  • miles
check engine light comes on bout 25 times a week i plug my scanner into it and it reads knock sensor faulty I seen a RECALL for these cars why doesn't my car have a recall of this on going issue?

- Spring Hill, FL, USA

problem #66

Aug 092022

Tucson

  • miles
Aug 9, 2022 ~1pm. Driving ~60 mph south on highway 18, 30 miles north of Lusk, WY. Heard 30 seconds of slapping noise from engine, follow by oil pressure low light. Accelerator also ceased to function. Pulled to side of road and waited for tow. Towed to Ken Garff Hyundai in Cheyanne, WY. Inspected on Aug 25, 2022 by technician at Ken Garff two weeks after incident. Hyundai authorized engine replacement. Hyundai also stated twice that there was a recall on the car. No recall appears in the NHTSA database. Problem is very similar to Part 573 Safety Recall Report 21V-727, which includes the 2017 Hyundai Tucson.

- Eden Prairie, MN, USA

problem #65

Jul 022022

Tucson

  • miles
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.

- Dayton, OH, USA

problem #64

Jun 302022

Tucson

  • 78,000 miles
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.

- Goreville, IL, USA

problem #63

Nov 032020

Tucson

  • miles
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!

- Wimauma, FL, USA

Read the next 20 complaints »

Not what you are looking for?