Tesla has updated the software for its Model S vehicle to put curbs on the hands-free steering feature that it unveiled in October 2015.

"Autosteer is now restricted on residential roads and roads without a center divider," Tesla notified owners in its Version 7.1 release notes. When Autosteer is engaged on such a road, the Model S's speed will be limited to the speed limit of the road "plus an additional 5 mph."

Hands-free steering was introduced on the Model S in October 2015. Image credit: Tesla Motors.Hands-free steering was introduced on the Model S in October 2015. Image credit: Tesla Motors.When entering a residential road or one without a center divider, the Model S will reduce its speed if necessary, even if the driver increases the cruise control set speed.

Since beta testing of the Autosteer function began in October, some Tesla drivers have posted videos online showing erratic driving by the hands-free system. Tesla CEO Elon Musk reportedly has acknowledged seeing such videos, but does not concede the software as responsible.

The Version 7.1 update also introduced the first iteration of "Summon," which is designed to eliminate having to squeeze in and out of tight parking spots. After arriving home and exiting the car, owners can prompt it to open the garage door, drive inside, park itself and shut down. Tesla advises that this beta test be done on driver’s private property.

To contact the author of this article, email GlobalSpeceditors@globalspec.com