Dodge 2008 PM Caliber - Manual (Page 288)

NOTE: Tighten the gas cap about one-quarter turn until
you hear one click. This is an indication that cap is
properly tightened.
If the gas cap is not tightened properly, the MIL will come
on. Be sure that the gas cap is tightened every time the
vehicle is refueled.
WARNING!
A fire may result if gasoline is pumped into a
portable container that is inside of a vehicle. You
could be burned. Always place gas containers on the
ground while filling.
Loose Fuel Filler Cap Message
If the vehicle diagnostic system determines that the fuel
filler cap is loose or improperly installed, a “gASCAP”
message will be displayed in the Odometer/Trip Odom-
eter in the instrument cluster. Refer to “Instrument
Cluster Description” in Section 4 of this manual. Tighten
the fuel filler cap properly and press the Odometer/Trip
Odometer reset button to turn the message off. If the
problem continues, the message will appear the next time
the vehicle is started. Refer to “Onboard Diagnostic
System — OBDII” in Section 7 of this manual for more
information.
CAUTION!
Damage to the fuel system or emission control sys-
tem could result from using an improper fuel tank
filler cap (gas cap). A poorly fitting cap could let
impurities into the fuel system.
286 STARTING AND OPERATING