2016 CHEVROLET IMPALA service interval

Chevrolet Impala Bi-Fuel (Gasoline/CNG) Supplement (GMNA-Localizing-U.
S/Canada-9087624) - 2016 - CRC - 8/17/15
18 Vehicle Care
Manual Shutoff Valve
Locate the manual shutoff valve so
that it can be found quickly if it is
needed.
The manual shutoff valve is on the
driver side of the vehicle in front of
the rear tire.
A label is on the outside of the
vehicle near the manual shutoff
valve. Do not remove this label.To turn off the valve, turn the lever
one-quarter turn clockwise. Turn it
counterclockwise to turn the valve
back on.
Turn off the valve if a fuel leak is
suspected or the vehicle is involved
in an accident. This valve, when
turned, will stop CNG flow to the
engine.High Pressure CNG Fuel Filter
The high pressure CNG fuel filter is
under the rear of the vehicle. This
filter must have the water drained
and the filter element must also be
replaced at specific service
intervals. See
Maintenance
Schedule 021.

Chevrolet Impala Bi-Fuel (Gasoline/CNG) Supplement (GMNA-Localizing-U.
S/Canada-9087624) - 2016 - CRC - 8/17/15
Service and Maintenance 21
Service and
Maintenance
Maintenance Schedule
Maintenance Schedule . . . . . . . . 21
Maintenance Records
Natural Gas Vehicle (CNG)Service Records . . . . . . . . . . . . . . 23
Maintenance
Schedule
{Warning
Do not operate the vehicle
without CNG tank shields in
place. Operation with a CNG tank
shield removed may result in tank
damage that could result in a
rupture or possible explosion of
the tank. You or others could be
injured or even killed. If you must
remove a tank shield for any
reason, e.g., tank inspection or
vehicle repair, always reinstall the
shield before operating the
vehicle.
{Warning
Keeping a CNG fuel tank in
service after the tank service
expiration date is dangerous and
is prohibited by federal law. The
tank may no longer withstand the
CNG fuel system operating
pressure. You could be severely
injured or killed. Take the vehicle
to an authorized GM dealer to
have the tank replaced.
See instructions on fuel
container for inspection and
service life.
Inspect the fuel tank every three
years and replace it after 15 years.
The fuel tank expiration date is on
the labels near the fuel tank and fuel
fill areas. Refer to the maintenance
intervals following.

Chevrolet Impala Bi-Fuel (Gasoline/CNG) Supplement (GMNA-Localizing-U.
S/Canada-9087624) - 2016 - CRC - 8/17/15
22 Service and Maintenance
This CNG vehicle is designed for
routine maintenance (fluids, filters,
etc.) according to the original
specifications as provided in the
owner manual for gasoline fuel
vehicles. See the owner manual for
maintenance service intervals and
fluid specifications.
See your dealer or other qualified
repair facility for required service
and maintenance. Your dealer has
the necessary training and parts to
repair the vehicle.
Every 17 500 km/11,000 Miles
.Replacement of the high
pressure CNG filter. See your
dealer. Every 48 000 km/30,000 Miles
.
Spark plug replacement and
spark plug wire inspection. An
Emission Control Service.
Every 60 000 km/37,500 Miles
. Visual inspection of the CNG
fuel tank by a qualified
technician or authorized GM
dealer (or 36 months,
whichever occurs first).
For more information,
see your dealer or visit:
http://www.csa-international.org/
{Warning
The CNG fuel system must be
inspected by a certified inspector
if the vehicle is involved in a
collision or fire. Have the CNG fuel system and
tank inspected if the vehicle has
been involved in a collision or
fire. The fuel tank must be
replaced 15 years after
manufacture. The expiration
date of the fuel tank is on a label
on the fuel tank and on a label in
the fill area. Have an authorized
GM dealer replace the fuel tank.
Do not reuse an old fuel tank.
. Service of the low pressure oil
separator (or 36 months,
whichever occurs first). See your
dealer.
. If there are cuts or corrosion in
the flex line jacket, replace
the line.

Chevrolet Impala Bi-Fuel (Gasoline/CNG) Supplement (GMNA-Localizing-U.
S/Canada-9087624) - 2016 - CRC - 8/17/15
24 Service and Maintenance
CNG Fuel Tank Inspection Record
Tank Serial Number:Tank Expiration Date:
Inspection Interval
(Mileage or Years) Inspection Date Inspector Inspector Initials Type of Repair
15 Years N/AN/AN/ATank Exchanged