Correct answer
Gently check brake response without endangering anyone.
Gently check their response following manufacturer instructions and restore effectiveness without endangering or surprising other road users. Wet brakes can be less effective; do not perform abrupt tests or drive with continuous pressure on the pedal. Reduce speed, increase separation and avoid flooded sections. If braking remains abnormal, stop safely and arrange inspection.
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Arbitrarily increase tyre pressure to dry the brakes.
Gently check brake response without endangering anyone.
Brake abruptly to test them even with a vehicle close behind.
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