Brake booster
The brake booster uses engine manifold vacuum to assist braking force. Do not turn off the engine while driving because that will turn off the brake booster, resulting in poor braking power.
The brakes will continue to work even when the brake booster completely stops functioning. If this happens, however, you will have to depress the pedal much harder than normal and the braking distance will increase.
See also:
Hill start assist warning light/ Hill start assist OFF indicator light
Refer to “Hill start assist warning light (MT models – if equipped)/Hill start assist OFF indicator light (STI)” ...
Brake assist system
WARNING
Do not be overconfident about the brake assist. It is not a system that brings
more braking ability to the vehicle beyond its braking capability. Always use the
utmost care when driving r ...
Checking the brake pedal free play
1) 0.08 – 0.18 in (2 – 5 mm)
Stop the engine and firmly depress the brake pedal several times. Lightly pull
the brake pedal up with one finger to check the free play with a force of less than
2 ...