Chevrolet 2011 Volt Owner's Manual page 371

This vehicle can be lifted with a
hoist or a service jack. Do not use
any other type of jack to lift the
vehicle.
This vehicle can be lifted with
a hoist at the four locations,
as illustrated.
The front lifting points can be
accessed from either side of the
vehicle, behind the front tires.
The rear lifting points can be
accessed from either side of the
vehicle, in front of the rear tires.
Lifting a vehicle can cause
an injury. The vehicle can slip
off the jack and roll over you or
other people. You and they could
be badly injured. Find a level
place to lift your vehicle. To help
prevent the vehicle from moving:
1. Set the parking brake firmly.
2. Put the shift lever in
P (Park).
3. Turn off the vehicle.
To be even more certain the
vehicle will not move, put blocks
in front of and behind the wheels.