See also:

Other Warning Devices
If you carry reflective triangles, you can set them up at the side of the road about 300 feet (100 m) behind your vehicle. ...

Remote Keyless Entry (RKE) System Operation
The transmitter functions will work up to 20m(65 ft) away from the vehicle. Keep in mind that other conditions, such as those previously stated, can impact the performance of the transmitter. ...

Control of a Vehicle
The following three systems help to control the vehicle while driving—brakes, steering, and accelerator. At times, as when driving on snow or ice, it is easy to ask more of those control syste ...