
Key (A) (or (C) in alternative), delivered in two copies when the car is not fitted with remote control, controls the following:

Chevrolet Sonic. Passenger Airbag Status Indicator
The vehicle has a passenger sensing system. See Passenger Sensing
System for important safety information. The instrument panel has a
passenger airbag
status indicator.
United States
...
Mazda 2. Radar Sensors (Rear)
Your vehicle is equipped with radar sensors (rear). The following systems
also use the radar
sensors (rear).
Blind Spot Monitoring system (BSM)
Rear Cross Traffi c Alert (RCTA)
The radar s ...
Peugeot 208. Engine oil level indicator
System which informs the driver whether the engine oil level is correct or not.
This information is indicated for a few seconds when the ignition is switched on,
after the service information.
Th ...