When using a floor jack, either side of the front of the vehicle can be raised by positioning the jack on the lower control arm, at the spindle connection. However, it is usually easier to raise the front of the vehicle at the front crossmember.
At the rear of the vehicle, the jack can be positioned under the rear axle housing tubes, between the suspension arm brackets and the differential housing. Do not raise the rear of the vehicle using the differential housing as a lift point.
Before raising the vehicle, always make sure the gearshift lever is in the P position and the parking brake is applied. Block the wheels at the opposite end of the vehicle. If your car is equipped with air suspension, always turn the air suspension switch OFF before raising the vehicle.
After the vehicle has been raised, it must be supported with jackstands, especially if you will be working under it. Never use cinder blocks or stacks of wood to support the car, even if you're only going to be under it for a few minutes. Jackstands can be positioned under the frame rails, under the rear axle tubes, and/or under the front lower control arms, at the spindle connections.