NHTSA Complaint #11603051 — 2018 KIA FORTE

2018 Kia Forte, purchased certified used June 2022, will randomly go into ECO or Sport mode on startup or while the vehicle is in motion. Vehicle is not equipped with Drive Mode control buttons, indicating that ECO/Sport modes are not supposed to be active feature. While I vaguely remember the mode change occurring during previous two years of my ownership, the first noticeable incident in 2024 was of the vehicle going into ECO mode (green indicator light) happen upon startup the morning of 5/26/24. This was noticeable due to the fact that the ECO mode slow down caused me to nearly be rear-ended by a semi while merging onto the freeway. The vehicle remained stuck in ECO mode for several weeks. On the morning of 6/10/24, while driving, vehicle began to sputter/hesitate and ECO light blinked on/off then switched to Sport (yellow indicator light) mode and vehicle surged forward. Vehicle then switched back to ECO mode and it remained in this mode until the morning of 6/13/24, at which point it went into Sport mode upon startup. It went back into Normal mode (no indicator light) upon startup the evening of 6/13/24. Vehicle was inspective by selling dealership 6/15/24 and they could not duplicate the issue nor pull trouble codes. Remained in Normal mode until the evening of 7/15/24, at which point it switched back to ECO mode. Dealership has been notified. It should be known that ECO mode slows down the vehicle response to conserve fuel, Sport mode speeds it up. While these features can be useful when wanted and properly installed with the appropriate controls, the randomness in which these features engage make them a safety hazard, especially considering the control buttons are not installed. Based on NHTSA VIN information the trim package of my vehicle, LX (which KIA America has yet to confirm even though I have made multiple inquiries), Drive mode is an optional feature which was not activated by the original/first owner.