Where should you park a vehicle if you must leave it with the parking brakes released, such as in very cold weather where they might freeze?
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Correct answer to question 127 (Air Brakes): Somewhere the vehicle can be safely secured another way, such as with wheel chocks, since brakes should not be routinely left released
Why
If parking brakes must be released, for example due to freeze risk in extreme cold, the vehicle needs another way to stay secured, such as wheel chocks, since a released parking brake leaves nothing holding the vehicle in place.
Updated: November 2026