Question 319 of 403

What should you do with your mirrors while backing to keep track of both sides of the trailer?

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Check only the mirror on the side the trailer is turning toward, though the reality of trailer says otherwise
Only watch the mirror on the side you are turning toward
Mirrors are not useful while backing and should be ignored
Check both side mirrors regularly and stop if the trailer position no longer matches what you expect

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Correct answer to question 319 (General Knowledge): Check both side mirrors regularly and stop if the trailer position no longer matches what you expect

Why

Continuously checking both mirrors while backing lets you track the trailer's actual path and catch it early if it starts to drift from where you intended.

Updated: November 2026

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What should you do with your mirrors while backing to keep track of both sides of the trailer?

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