What should a driver verify before lifting his car to change a wheel?
- Correct answer: He must ensure, in all possible ways that the vehicle cannot move.
- That the auxiliary (parking/hand) is secured until the wheel is taken off, and then released while the new wheel is installed.
- That the auxiliary (parking/hand) brake is released until the wheel is taken off, and then tightened while the new wheel is installed.
- That the auxiliary (parking/hand) is free and released, and that the vehicle is in low gear during the entire course of the wheel change.
Why this is the answer
The correct answer in the official bank: He must ensure, in all possible ways that the vehicle cannot move.
A raised vehicle may move or slip off the jack and injure the person changing the wheel. So before lifting, make sure by every available means that the vehicle cannot move. For example, use the parking brake, engage a gear or park mode, and place wedges or stones under the wheels. Do not settle for one measure if you can add another.