service indicator JEEP GLADIATOR 2023 Owner's Manual

TECHNICAL SPECIFICATIONS421
NOTE:Intentional tampering with the emissions control
system can result in civil penalties being assessed
against you.
FUEL REQUIREMENTS – DIESEL ENGINE
Federal law requires that you must fuel this vehicle
with Ultra Low Sulfur Highway Diesel fuel (15 ppm
Sulfur maximum) and prohibits the use of Low
Sulfur Highway Diesel fuel (500 ppm Sulfur
maximum) to avoid damage to the emissions
control system.
Use good quality diesel fuel from a reputable
supplier in your vehicle. For most year-round
service, Number 2 diesel fuel meeting ASTM
(formerly known as the American Society for
Testing and Materials) specification D-975 Grade
S15 will provide good performance. If the vehicle is exposed to extreme cold (below 20°F or -7°C), or
is required to operate at colder-than-normal
conditions for prolonged periods, use climatized
Number 2 diesel fuel or dilute the Number 2 diesel
fuel with 50% Number 1 diesel fuel. This will
provide better protection from fuel gelling or
wax-plugging of the fuel filters.
Diesel fuel is seldom completely free of water. To
prevent fuel system trouble, drain the
accumulated water from the fuel/water separator
using the fuel/water separator drain provided on
the fuel filter housing. If you buy good quality fuel
and follow the listed cold weather
recommendations, fuel conditioners should not be
required in your vehicle. If available in your area, a
high cetane “premium” diesel fuel may offer
improved cold-starting and warm-up performance.
DIESEL FUEL SPECIFICATIONS
This diesel engine has been developed to take
advantage of the high energy content and
generally lower cost Number 2 Ultra Low Sulfur
diesel fuel or Number 2 Ultra Low Sulfur climatized
diesel fuels.
NOTE:
If you accidentally fill the fuel tank with gasoline
or DEF on your diesel vehicle, do not start the
engine. Damage to the engine and fuel system
could occur. Please call an authorized dealer for
service.
A maximum blend of 5% biodiesel meeting
ASTM specification D-975 may be used with
your diesel engine without any adjustments to
regular service schedules.
Commercially available fuel additives are not
necessary for the proper operation of your
diesel engine.
Number 1 Ultra Low Sulfur diesel fuel should
only be used where extended arctic conditions
(-10°F or -23°C) exist.
The use of fuel additives, which are now being
sold as octane enhancers, is not recom
-
mended. Most of these products contain high
concentrations of methanol. Fuel system
damage or vehicle performance problems
resulting from the use of such fuels or addi -
tives is not the responsibility of The manufac -
turer and may void or not be covered under
the New Vehicle Limited Warranty.
CAUTION!
WARNING!
Do not use alcohol or gasoline as a fuel blending
agent. They can be unstable under certain
conditions and hazardous or explosive when
mixed with diesel fuel.
CAUTION!
If the Water in Fuel Indicator Light remains on,
DO NOT START engine before you drain the water
from the fuel filter(s) to avoid engine damage
Ú page 368.
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Leaks, Fluid
................................................... 330Leather Surfaces........................................... 417Life Of Tires................................................... 404Light Bulbs........................................... 330, 392Lights............................................................. 3304WD.......................................................... 1384WD Auto.................................................. 1394WD Low................................................... 1384WD Part Time.......................................... 138AdBlue UREA Injection System Failure...... 138Air Bag.................................... 132, 306, 329Automatic Headlights.................................. 58Axle Locker Fault....................................... 138Bed.............................................................. 59Brake Assist Warning................................ 283Brake Warning.......................................... 132Bulb Replacement..................................... 393Cargo......................................................... 139Center Mounted Stop................................ 395Daytime Running......................................... 57Dimmer Switch, Headlight........................... 57Electronic Throttle Control......................... 133Engine Check Malfunction Indicator..........136Engine Coolant Temperature..................... 133Exterior............................................... 56, 330Fog............................................58, 140, 394Front And Rear Axle Lock.......................... 138Hazard Warning Flasher............................ 332Headlight Switch......................................... 56Headlights.......................................... 56, 393
High Beam..........................................57, 141High Beam/Low Beam Select...................... 57Hood Open............................................... 133Instrument Cluster....................................... 56Interior......................................................... 59Lights On Reminder..................................... 58Low Diesel Exhaust Emissions Additive.... 139Low Fuel................................................... 136Neutral..................................................... 139Off Road................................................... 139Oil Pressure.............................................. 134Oil Temperature........................................ 134Passing........................................................ 58Rear Axle Lock.......................................... 138Rear Servicing.......................................... 395Rear Tail Lamps....................................... 395Seat Belt Reminder.................................. 134Security Alarm.......................................... 135Service..................................................... 393Service 4WD............................................. 136Service Forward Collision......................... 137Side Marker.............................................. 395StopStart.................................................. 140Sway Bar Fault.......................................... 137Tire Pressure Monitoring (TPMS)..... 137, 294Traction Control........................................ 283Transmission Temperature....................... 134Turn Signal............................................... 330Turn Signals........................... 140, 394, 395Two Wheel Drive High............................... 140
Load Shed Battery Saver Mode..................... 127Loading Vehicle............................................. 195Tires.......................................................... 400Locking Axle.................................................. 165, 166LocksAutomatic Door............................................27Child Protection...........................................27Power Door..................................................25Low Tire Pressure System............................. 294Lowering The Soft Top
S
........................83, 86Lubrication, Body.......................................... 374Lug Nuts/Bolts.............................................. 418Luggage Carrier............................................. 115
M
Maintenance Free Battery............................ 364Maintenance Schedule........................ 353, 357ManualPark Release............................................ 348Service...................................................... 431Manual Transmission........................... 153, 381Fluid Level Check...................................... 381Lubricant Selection.......................... 381, 426Shift Speeds............................................. 154Media Mode.................................................. 242Methanol....................................................... 420Methylcyclopentadienyl Manganese
Tricarbonyl (MMT) In Gasoline...................... 420

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