Revision question · Braking systems

You've just started the engine. What must you do if the brake air-pressure warning light is showing?

Revision material from the imported DVSA bank includes source-checked Lanekind learning corrections. These corrections are not newly issued official examination questions, and practice does not reproduce a live test paper.

Answer options

Report it as a fault

Keep the parking brake on

Switch your engine off

Engage the clutch

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Keep the parking brake onThis was the right answer

Even though the warning light is showing, there may be sufficient pressure to release the parking brake. However, you mustn't do this, because there may not be enough air pressure to operate the service brake.

Reviewed reading for this question

Do not move with unsafe brake-air pressureReviewed guidance summary · A warning while stationary means keep the parking brake applied; one during travel requires a safe stop and fault repair. The ability to release the park brake does not prove sufficient service-brake pressure.

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