Chevrolet 2011 Volt Owner's Manual page 456

A. Outer Air Deflector
B. Inner Air Deflector
C. Tab
D. Slot
The front air deflector allows air to
flow cleaner under the vehicle.
Should the front air deflector
become detached, insert Tab C into
Slot D. Repeat for the other side.
To preserve the finish, keep it clean
by washing it often.
Do not wash the vehicle in
direct sunlight and use a car
washing soap.
Follow all manufacturer directions
regarding correct product usage,
necessary safety precautions, and
appropriate disposal of any vehicle
care product.
Rinse the vehicle well, before
washing and after, to remove all
cleaning agents completely. If they
are allowed to dry on the surface,
they could stain.
Dry the finish with a soft, clean
chamois or an all-cotton towel to
avoid surface scratches and water
spotting.
High pressure car washes could
cause water to enter the vehicle.
Avoid using high pressure washes
closer than 30 cm (12 in) to the
surface of the vehicle. Use of power
washers exceeding 8,274 kPa
(1,200 psi) can result in damage
or removal of paint and decals.