Loose Fuel Filler Cap Message - Jeep Gladiator 2020 Owner's Manual

WARNING!
• Never have any smoking materials lit in or near the
vehicle when the fuel door is open or the tank is being
filled.
• Never add fuel when the engine is running. This is in
violation of most state and federal fire regulations and
may cause the "Malfunction Indicator Light (MIL)" to
turn on.
• A fire may result if fuel is pumped into a portable
container that is inside of a vehicle. You could be
burned. Always place fuel containers on the ground
while filling.
CAUTION!
• Damage to the fuel system or emission control system
could result from using an improper fuel filler cap. A
poorly fitting cap could let impurities into the fuel
system. Also, a poorly fitting aftermarket cap can cause
the "Malfunction Indicator Light (MIL)" to illuminate,
due to fuel vapors escaping from the system.
• To avoid fuel spillage and overfilling, do not "top off"
the fuel tank after filling.
NOTE:
• When the fuel nozzle "clicks" or shuts off, the fuel tank is
full.
• Tighten the fuel filler cap about 1/4 turn until you hear one
click. This is an indication that the cap is properly tight-
ened.
• If the fuel filler cap is not tightened properly, the MIL will
come on. Be sure the cap is tightened every time the
vehicle is refueled.

Loose Fuel Filler Cap Message

After fuel has been added, the vehicle diagnostic system can
determine if the fuel filler cap is possibly loose, improperly
installed, or damaged. If the system detects a malfunction,
the "gASCAP" message will display in the odometer
display. Tighten the gas cap until a "clicking" sound is heard.
This is an indication that the gas cap is properly tightened.
Push the odometer reset button to turn the message off. If the
problem persists, the message will appear the next time the
vehicle is started. This might indicate a damaged cap. If the
problem is detected twice in a row, the system will turn on
the MIL. Resolving the problem will turn the MIL off.
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