What's the most important safety check you can perform before going under a raised vehicle? Raise the vehicle slightly off the ground and shake to confirm stability. Check the oil in the reservoir Recheck the function of the swing arm restraints

## Step 1<br />This problem is about safety checks before lifting a vehicle. The options provided are:<br />1. Raise the vehicle slightly off the ground and shake to confirm stability.<br />2. Check the oil in the reservoir.<br />3. Recheck the function of the swing arm restraints.<br /><br />## Step 2<br />The first option, raising the vehicle slightly off the ground and shaking to confirm stability, is a safety check that ensures the vehicle is stable before lifting it. This is a crucial step to prevent any accidents or injuries.<br /><br />## Step 3<br />The second option, checking the oil in the reservoir, is not directly related to the safety of lifting the vehicle. While it is important to check the oil level in the vehicle, it does not contribute to the safety of the lifting process.<br /><br />## Step 4<br />The third option, rechecking the function of the swing arm restraints, is also a safety check. However, it is not as immediate or direct as the first option. The swing arm restraints are important for the safety of the vehicle, but they do not directly contribute to the safety of the lifting process.