To change the cruising speed

See also:

Stopping the engine
WARNING Do not stop the engine when the vehicle is moving. This will cause loss of power to the power steering and the brake booster, making steering and braking more difficult. It could also res ...

Air conditioner compressor shut-off when engine is heavily loaded
To improve acceleration and gas mileage, the air conditioner compressor is designed to temporarily shut off during air conditioner operation whenever the accelerator is fully depressed such as dur ...

Warning and indicator lights
...