Revision question · Braking systems

What should you do if the brake air-pressure warning light comes on while you're driving?

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

Stop and get help without delay

Report the fault when you return to your depot

Build up the pressure by accelerating

Drain the air tanks and continue normally

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Stop and get help without delayThis was the right answer

When a warning light or device indicating a loss of brake pressure comes on, you must stop safely and get the fault put right immediately. The safety of you, your load, your passengers and all other road users is at risk.

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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