Two problems related to adaptive cruise control have been reported for the 2020 Hyundai Elantra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2020 Hyundai Elantra based on all problems reported for the 2020 Elantra.
This vehicle has what is now known as "phantom braking" since day of delivery over two years ago and was reported to NHTSA previously by me and Hyundai which has not or will not try to correct this safety hazard. Last incident this occurred on 3/11/2023 for at least the 6th time. This has happened with vehicles behind me which have come close to hitting me.
When cruise control is activated, the engine rpm automatically increases by about 700 rpm. At 75 mph, the engine rpm is 2300. When control is activated, engine rpm increases to 3000 rpm and remains there. This decreases gas milesge and increases wear on engine.
| Warnings problems | |
| Adaptive Cruise Control problems |