Chevrolet Impala Bi-Fuel (Gasoline/CNG) Supplement (GMNA-Localizing-U.
S/Canada-9087624) - 2016 - CRC - 8/17/15
6 Instruments and Controls
Vehicle Messages
Fuel System Messages
FUEL MODE UNAVAILABLE
This message displays when the
current fuel mode selected is empty
or unavailable. See“Fuel Selector
Switch” underFuel08. The vehicle
will switch fuel modes automatically.
This is usually due to a low fuel
condition of the fuel type selected or
the engine is not warm enough after
an initial engine start up.
This message will also appear if the
vehicle has initiated a gasoline
system maintenance routine.
A switch to CNG will not be
available until this routine is
complete.
This message can also appear if a
transition to CNG is attempted in
cold start conditions. See “Cold
Weather Starting” underStarting the
Engine 07. This message may also appear if
the CNG tank valve is unable to
open fully during some vehicle
operating conditions.
SERVICE FUEL SYSTEM PARK
IN OPEN AREA
This vehicle is equipped with a CNG
fuel system diagnostic to ensure
proper function. This message
displays when the CNG fuel system
requires service.
Park the vehicle in an outdoor open
area, do not start the engine, refuel,
or drive the vehicle. Have the
vehicle towed to an authorized GM
dealer for service.
See
Fuel System Leak 014.
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
