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You’re about to drive a vehicle fitted with air-assisted hydraulic brakes. Why might the brake pedal feel hard when you press it?

Braking Systems
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The vacuum pump isn't working
The pedal movement needs adjusting
The brakes are locked on fully
The brake-fluid reservoir is empty
← You're stationary. The brake air-pressure warning light comes on. Why should you keep the parking brake on? Your vehicle is fitted with an air-assisted hydraulic braking system. What would warn you that the vacuum pump isn't working? →

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