Trouble continues to simmer for Hyundai Motor America and Kia America despite developing a free fix for owners to protect certain older-model-year Hyundai and Kia vehicles from being hotwired.
On Feb. 14, the Korean automakers, both owned by Hyundai Motor Group, launched a service campaign in the form of a software update for 8.4 million Hyundai and Kia vehicles that lack a crucial anti-theft device called an engine immobilizer.
An engine immobilizer electronically tethers a vehicle to its key fob and prevents it from starting without the device present.
The software update extends the length of the vehicle's existing alarm from 30 seconds to one minute and requires the key in the ignition for the vehicle to be turned on. The announcement of the campaign also came from NHTSA.
But one day after the service campaign was issued, the city of Columbus, Ohio — which calculated a near 500 percent increase in thefts of Kia and H…