What is a critical step to take after using a jack to lift a vehicle?

• A. Drive the vehicle immediately to test its stability
• B. Use jack stands to support the vehicle before working underneath it
• C. Leave the vehicle on the jack until the work is completed
• D. Let the jack sit for about an hour

Answer: (B)

Using jack stands to support the vehicle after lifting it with a jack is a crucial safety step. Jacks, while designed to lift vehicles, are not stable enough to hold the weight of the vehicle for an extended period—especially if someone will be working underneath. Jack stands provide a more secure and reliable support system that prevents accidental lowering or slipping of the vehicle, thereby reducing the risk of serious injury.

Ensuring that the vehicle is properly supported with jack stands allows safe access to the underneath of the vehicle for maintenance or repairs. This step is critical in adhering to safety protocols and best practices in automotive repair environments, making it essential for anyone working on or around vehicles.