2019 Hyundai Tucson vehicle speed control problems
16 owner complaints filed with NHTSA name the vehicle speed control on the 2019 Hyundai Tucson — 4% of all complaints for this model year.
What owners report
“The component involved is the engine and associated knock detection system (KSDS). The system triggered a P1326 code indicating abnormal engine knock associated with a known defect condition. On February 14, 2023, while driving on the freeway, the vehicle suddenly entered reduced power (“limp…”
filed Apr 12, 2026
“The vehicle was brought in just after a month of owning it due to it was accelerating slow and driving bad salesmans sent it to Hyundai dealership for diagnosis and it came back that the motor needed to be replaced due to recall vehicle was in repair shop for over 3 months to get a new motor once…”
filed Aug 14, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Vehicle Speed Control problems in other Tucson years
| Year | Reports | Share |
|---|---|---|
| 2026 Tucson | 1 | 2% |
| 2025 Tucson | 13 | 5% |
| 2024 Tucson | 9 | 10% |
| 2023 Tucson | 17 | 13% |
| 2022 Tucson | 14 | 4% |
| 2021 Tucson | 2 | 3% |
| 2020 Tucson | 3 | 2% |
| 2018 Tucson | 16 | 4% |
| 2017 Tucson | 87 | 8% |
| 2016 Tucson | 111 | 7% |
| 2015 Tucson | 9 | 4% |
| 2014 Tucson | 3 | 2% |
Other reported problem areas on the 2019 Hyundai Tucson
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.