Jeep Grand Cherokee 2018 Manual page 8

A MESSAGE FROM FCA US
LLC
FCA US LLC welcomes you as a turbocharged
diesel-powered vehicle owner. Your diesel ve-
hicle will sound, feel, drive and operate differ-
ently from a gasoline-powered vehicle. It is
important that you read and understand this
manual.
Almost 100% of the heavy trucks in the United
States and Canada are diesel-powered be-
cause of the fuel economy, rugged durability,
and high torque which permits pulling heavy
loads.
You may find that some of the starting, operat-
ing, and maintenance procedures are different.
However, they are simple to follow and careful
adherence to them will ensure that you take full
advantage of the features of this engine.
NOTE:
• Some aftermarket products may cause se-
vere engine/transmission and/or exhaust sys-
tem damage. Your vehicle's powertrain con-
trol systems can detect and store information
about vehicle modifications that increase
horsepower and torque output such as
whether or not performance-enhancing pow-
ertrain components, commonly referred to as
downloaders, power boxes, or performance
chips have been used.
4
• Any chassis/suspension or tire size modifica-
tions to the vehicle will effect the performance
of the Adaptive Cruise Control and Forward
Collision Warning System.
This information cannot be erased and will stay
in the system's memory even if the modification
is removed. This information can be retrieved by
FCA US LLC, and service and repair facilities,
when servicing your vehicle. This information
may be used to determine if repair will be
covered by New Vehicle Limited Warranty.
There is a probability that the use of a "perfor-
mance chip" will prohibit the engine from start-
ing. In this instance, the vehicle will need to be
serviced by a authorized dealer in order to
return the vehicle to it's factory settings.
When it comes to service, remember that your
authorized dealer knows your Jeep® vehicle
best, has factory-trained technicians and genu-
ine MOPAR® parts, and cares about your
satisfaction.