2018 Hyundai Tucson — Known Issues & Recalls

Your 2018 Tucson's engine suddenly stopped working, and the dealership confirmed it was due to a known recall issued in 2020. However, the manufacturer is refusing to cover the repair because the recall wasn't addressed when it was originally issued — before you owned the vehicle. You were unaware of the recall at the time of purchase, but the manufacturer is holding you responsible for not bringing it in during the original recall period.

I have experienced two near-fatal incidents involving a sudden, uncommanded loss of motive power while traveling at highway speeds (approx. On February 11, 2026, the vehicle entered "Limp Home Mode" without warning, dropping speed to 60 MPH and 2000 RPM in heavy traffic. This caused an immediate and dangerous speed differential, nearly resulting in a high-speed rear-end collision.

I am writing this letter to formally document a series of catastrophic safety failures and gross negligence regarding my 2018 Hyundai Tucson. On two separate occasions, including as recently as Wednesday, February 11, 2026, I narrowly escaped a fatal high-speed collision because this vehicle entered "Engine Protection Mode" while traveling at highway speeds.

My 2018 Hyundai Tucson experienced sudden catastrophic engine failure when a connecting rod threw while driving. The engine burned through its oil and the vehicle became inoperable. Hyundai denied warranty coverage for this engine failure because I had not completed the 2021 KSDS (Knock Sensor Detection System) recall.

Purchased 9/5/25 at 76,280 and oil change light shown by 10/1/25 when I received an oil change at Valvoline and was told of my engine issues at 77,733 miles. Car then looked at by Elizabeth Auto Sales [XXX] and confirmed oil consumption at no fault of my own and metal shavings in oil. Car then towed to #1 Cochran Hyundai Monroeville [XXX] and looked at by Dale.

Your 2018 Hyundai Tucson's 1.6L turbo engine is consuming oil at a high rate, even with regular oil changes. The problem starts without warning—there's no dashboard indicator or error code to alert you until the oil level becomes dangerously low, which could cause the engine to seize and leave you stranded. The fix will likely require your dealership to diagnose the root cause of the excessive oil burn and may involve engine repairs or replacement.

My 2018 Hyundai Tucson experienced repeated no-start conditions. The vehicle was initially diagnosed by Randy Wise Hyundai in Flint, Michigan, and I paid approximately $776 for tune-up services that did not resolve the issue. Shortly afterward, the vehicle continued to fail to start.

Driving on freeway no warning lamps on dashboard. Exit freeway to get gas and there is minimal engine performance and check engine light illuminates. Cylinders are not firing, no compression.

The car began making a knocking sound on my 5.8 mile drive. On my drive home from work, the knocking was louder, and the car barely accelerated on the highway and over-revved trying to hit at least 50 MPH to keep up with the flow of traffic. I took the car to the Hyundai Service Center immediately using city streets rather than the highway.

There is oil that leaks on a couple spark plugs.....when I remove the plug there is oil on the plug cover and inside where the plug goes in.........disturbing.....can you help....supposed to be a recall but I don't know what to do.....I would like to get that straightened out..... I want to keep it .....also like to buy my wife a new one......can you help on this problem....

The engine is burning excessive oil. Down 3 quarts over approx. 3,000 miles.

My 2018 Hyundai Tucson has been experiencing oil consumption issues for over a year. It began at around 80k miles, when it should have been covered by warranty but they made me pay out of pocket for an oil consumption test only to ultimately recommend a top end cleaning, which I also paid for and it did not solve the problem.

Oil consumption, will change oil and within weeks I will be down 23 Quarts of oil

While driving on a public road, the vehicle experienced multiple simultaneous, dangerous malfunctions: Dashboard Warnings: All lights illuminated, including engine (flashing), ABS, traction control, airbag, TPMS, and parking brake, which stayed on though disengaged. Engine & Transmission: Tachometer fluctuated wildly in park; engine revved without accelerator input.

The engine and engine management system of my 2018 Hyundai Tucson experienced repeated failures resulting in loss of propulsion and unsafe drivability. In November 2025, while traveling approximately 75 MPH on a freeway, the vehicle suddenly entered limp mode without any prior warning, causing an abrupt loss of power in active highway traffic.

Hyundai Tucson has been jerking and shaking for over over 4 years now and either when taking to the dealership they reset the dual clutch and have replaced the same part twice in the dual clutch. This shaking has been happening since the car was bought brand new like a year after. The vehicle now will get stuck in gear and while driving will go down to 20 MPH and get stuck in that speed.

The situation I’m about to explain has happened twice—once in December 2025 and again on January 22, 2026. In December, the roads were very icy, but there was no snow on the ground. As I made a right turn into a Walmart parking lot, I heard a loud metal-breaking sound while turning.

My specific Tucson is equipped with 1.6L Turbo and a 7 speed Dual-Clutch Transmission. I see there are recalls for the 2016 models equipped with the same transmissions, so I'm concerned as to why there hasn't been a recall for the newer models.

The contact owns a 2018 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, the vehicle lost automotive power. The vehicle was pulled over to the shoulder lane, engine oil was added, and the contact waited for several minutes for the vehicle to return to normal operation.

High Oil Consumption