New Delhi, Oct. 12 -- Owners of eligible Cadillac electric vehicles in the United States and Canada can now leave their phones in a pocket when opening the car, provided their Galaxy device supports the necessary wireless technology. Samsung Wallet has added General Motors digital keys, bringing automatic entry, starting and key sharing to a limited first group of vehicles.

this is not support for every Cadillac or every vehicle carrying a GM badge.

The feature extends Samsung Wallet beyond payments and identification into a task where compatibility has to work at both ends. Once the key is properly enabled, Ultra-Wideband, or UWB, and Bluetooth Low Energy allow the car to unlock as the owner approaches and lock again when they walk awa...