2019 Hyundai Tucson · symptom sheet
Engine knocking or ticking
- 43owner reports
- 62,768median miles
- 1involved a crash
Newest report Aug 29, 2026 · checked Oct 2, 2026
43 of the 92 reports of engine failure on the 2019 Tucson describe engine knock.
Part of Engine failure, knocking or rod bearing (92 reports)
Tick what matches of 43 reports
Engine knock on other Tucson years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2015, 2020, 2021, 2022, 2023, 2024, 2025, 2026.
What got replaced
Owners who name the part that was replaced mention the knock sensor (22 reports), the engine (5 reports) and the rod bearing (4 reports).
Recalls and investigations
No recall on the engine covers the 2019 model year as of Oct 2, 2026.
NHTSA investigations into the engine on the Tucson
Loss of motive power. Closed dec 12, 2023.
Engine fires. Closed feb 5, 2024, led to recall 23V-877.
When it happens
The middle half of failures fell between 51,392 and 82,000 miles, from the 17 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 4 service bulletins or notices for the 2019 Hyundai Tucson that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
Hyundai is conducting a campaign to enhance the knock sensor software to detect abnormal engine bearing noise before potentially severe engine damage occurs.
Hyundai is conducting a service campaign to enhance the knock sensor software to detect abnormal engine bearing noise before potentially severe engine damage occurs.
Hyundai is conducting a product improvement campaign to enhance the knock sensor software to detect abnormal engine bearing noise before potentially severe engine damage occurs.
Hyundai has developed a new engine monitoring technology called a Knock Sensor Detection System (KSDS). The technology uses software innovations and leverages existing engine sensors to continuously monitor for symptoms that may precede an engine failure.
What owners wrote
“Catalytic converter and oil leak which is causing the vehicle to lose power. The catalytic converter was replaced in 2024 and now is bad again in 2025. Oil consumption has been a problem since 2024. Hyuandi is refusing to repair the vehicle. Despite the engine making a knocking noise and the check engine light is flashing the vehicle is still under the 150,000 power train warranty”
Filed Feb 24, 2026
“Low oil, burnt oil on dip stick, engine running dangerous hot, lights on on dash, engine knocking”
Filed Feb 21, 2026
“Engine making knocking sounds, losing power, no indication of low oil levels until very low.”
Filed Nov 24, 2025
“Knock sensor keeps throwing codes, the car will not accelerate over 20mph and under 2000 rpms”
Filed Nov 30, 2024
Should you keep driving it?
This page can't tell you that. 1 of 43 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Taking it to a shop? How to describe this problem so it gets found
Other problems on this car
- Brakes grind, pulse or wear early 118 reports
- Check engine light or misfire 73 reports
- Engine stalls or loses power while driving 60 reports
- Burns oil or oil level rises 49 reports