RAM 2500 2019, User Manual

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(Continued)
Onboard Diagnostic System (OBD II)
Cybersecurity
Your vehicle is required to have an Onboard
Diagnostic system (OBD II) and a connection
port to allow access to information related to
the performance of your emissions controls.
Authorized service technicians may need to
access this information to assist with the
diagnosis and service of your vehicle and
emissions system.
For further information, refer to “Cybersecu -
rity” in “Multimedia”.
CAUTION!

Prolonged driving with the MIL on could
cause further damage to the emission
control system. It could also affect fuel
economy and driveability. The vehicle
must be serviced before any emissions
tests can be performed.

If the MIL is flashing while the vehicle is
running, severe catalytic converter
damage and power loss will soon occur.
Immediate service is required.
WARNING!

ONLY an authorized service technician
should connect equipment to the OBD II
connection port in order to read the VIN,
diagnose, or service your vehicle.

If unauthorized equipment is connected
to the OBD II connection port, such as a
driver-behavior tracking device, it may:

Be possible that vehicle systems,
including safety related systems,
could be impaired or a loss of vehicle
control could occur that may result in
an accident involving serious injury
or death.

Access, or allow others to access,
information stored in your vehicle
systems, including personal informa-
tion.
WARNING! (Continued)
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