• 5 MPH Max Speed on Restart, Long Idle or Refuel
Service DEF See Dealer — This message will continu-
ously display when the mileage counter reaches zero,
and will be accompanied by a periodic chime.
• The vehicle will only be capable of a maximum speed of
5 MPH upon the first of the following conditions to
occur:
• If the vehicle is shutoff and restarted.
• If the vehicle is idled for an extended period of time,
approximately one hour or greater.
• If the system detects that the level of fuel in the tank
has increased.
• 5 MPH Max Speed Service DEF System See Dealer —
This message will continuously display, and will be
accompanied by a periodic chime. Although the vehicle
can be started and placed in gear, the vehicle will only
operate at a maximum speed of 5 MPH. Your vehicle
will require towing, see your authorized dealer for
service.
NOTE: When this message is displayed, the engine can
still be started. However, the vehicle will only operate at a
maximum speed of 5 MPH.
• Incorrect DEF Detected See Dealer — This message will
display when the fault is initially detected, each time the
vehicle is started, and periodically during driving. The
message will be accompanied by a single chime. We
recommend you drive to your nearest authorized dealer
and have your vehicle serviced as soon as possible.
RAM Active Air System
Your vehicle is equipped with an advanced Ram Active Air
system that provides enhanced performance, especially
when towing under demanding hot or high altitude con-
ditions. If the Instrument Cluster Display displays the
message “Active Airbox Service Required See Dealer”,
vehicle performance may be reduced until service is per-
formed by an authorized RAM dealer.
118 UNDERSTANDING YOUR INSTRUMENT PANEL
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