The horn,
The signal lights,
The brake lights,
The back up lights,
Flashing the high beam headlights,
When drivers arrive at an intersection at the same time, they should yield to the vehicle on their right. If two vehicles arrive at the same time across from each other, the vehicle going straight has the right of way over the vehicle turning left. It is important to communicate with other drivers and proceed with caution to avoid accidents.
To communicate to other drivers that you're in trouble or moving slowly, use your vehicle's hazard lights to signal a warning. Additionally, if safe, you can use hand signals or flash your headlights to gain attention. If possible, place warning triangles or flares behind your vehicle to alert approaching drivers. Always ensure your actions are clear and visible to prevent accidents.
wave
A modem
CAN(Controller Area Network) is standard designed to allow micro-controller and devices to communicate with each other within a vehicle without a host computer
by email and other radio devices
use horn
IBM produces drivers for all kinds of technological devices such as printers, computers, laptops, POS, Networking Devices, Peripherals, System Storage and various other devices.
What percent of drivers involved in lane change crashes claim they did not see the other vehicle?
there is an app called pouncer
No, other than the GPS devices, there are no other vehicle tracking systems that are in use. You can see the latest inventions at en.wikipedia.org/wiki/Vehicle_tracking_system
BUSEach channel, called a bus, allows the various devices both inside and attached to the system unit to communicate with each other