A gear selector refers to a part in a vehicle that allows you to choose your desired gear, such as park, reverse, neutral, or drive. It helps you control the movement of the vehicle. Full definition
engage via a push - button control center - mounted underneath the rotary gear selector on the instrument panel. (iimediaevents.com)
The new M Sports Automatic is controlled by an electronic gear selector lever on the centre console and offers the driver not only the D Mode, but also an S and M Mode for an even more sporting gearshift. (ausmotive.com)
I would also like to add that I am not a fan of the push button gear selector on the 2016 Honda Pilot Touring and Elite models with nine speed transmissions. (autoline.tv)