2023 JEEP GLADIATOR brake fluid

196STARTING AND OPERATING
This label contains the month and year of
manufacture, Gross Vehicle Weight Rating
(GVWR), front and rear Gross Axle Weight Rating
(GAWR), and Vehicle Identification Number (VIN). A
Month-Day-Hour (MDH) number is included on this
label and indicates the Month, Day and Hour of
manufacture. The bar code that appears on the
bottom of the label is your VIN.
Gross Vehicle Weight Rating (GVWR)
The GVWR is the total permissible weight of your
vehicle including driver, passengers, vehicle,
options and cargo. The label also specifies
maximum capacities of front and rear Gross Axle
Weight Rating (GAWR). Total load must be limited
so GVWR on front and rear GAWR are not
exceeded.
Payload
The payload of a vehicle is defined as the allowable
load weight a truck can carry, including the weight
of the driver, all passengers, options and cargo.
Gross Axle Weight Rating (GAWR)
The GAWR is the maximum permissible load on the
front and rear axles. The load must be distributed
in the cargo area so that the GAWR of each axle is
not exceeded.
Each axle GAWR is determined by the components
in the system with the lowest load carrying capacity
(axle, springs, tires or wheels). Heavier axles or
suspension components sometimes specified by purchasers for increased durability does not
necessarily increase the vehicle's GVWR.
Tire Size
The tire size on the Vehicle Certification Label
represents the actual tire size on your vehicle.
Replacement tires must be equal to the load
capacity of this tire size.
Rim Size
This is the rim size that is appropriate for the tire
size listed.
Inflation Pressure
This is the cold tire inflation pressure for your
vehicle for all loading conditions up to full GAWR.
Curb Weight
The curb weight of a vehicle is defined as the total
weight of the vehicle with all fluids, including
vehicle fuel, at full capacity conditions, and with no
occupants or cargo loaded into the vehicle. The
front and rear curb weight values are determined
by weighing your vehicle on a commercial scale
before any occupants or cargo are added.
Loading
The actual total weight and the weight of the front
and rear of your vehicle at the ground can best be
determined by weighing it when it is loaded and
ready for operation.
The entire vehicle should first be weighed on a
commercial scale to ensure that the GVWR has not
been exceeded. The weight on the front and rear of
the vehicle should then be determined separately
to be sure that the load is properly distributed over
the front and rear axle. Weighing the vehicle may
show that the GAWR of either the front or rear axles
has been exceeded but the total load is within the
specified GVWR. If so, weight must be shifted from
front to rear or rear to front as appropriate until the
specified weight limitations are met. Store the
heavier items down low and be sure that the
weight is distributed equally. Stow all loose items
securely before driving.
Improper weight distributions can have an adverse
effect on the way your vehicle steers and handles
and the way the brakes operate.
WARNING!
Do not load your vehicle any heavier than the
GVWR or the maximum front and rear GAWR. If
you do, parts on your vehicle can break, or it can
change the way your vehicle handles. This could
cause you to lose control. Overloading can
shorten the life of your vehicle.

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212STARTING AND OPERATING
IF YOU STALL OR BEGIN TO LOSE HEADWAY
If you stall or begin to lose headway while climbing
a steep hill, allow your vehicle to come to a stop
and immediately apply the brake. Restart the
engine and shift into REVERSE. Back slowly down
the hill allowing engine braking to control the
descent and apply your brakes, if necessary, but
do not allow the tires to lock.
Driving Through Water
Extreme care should be taken crossing any type of
water. Water crossings should be avoided, if
possible, and only be attempted when necessary in
a safe, responsible manner. You should only drive
through areas which are designated and approved.
You should tread lightly and avoid damage to the
environment. You should know your vehicle's
abilities and be able to recover it if something goes wrong. You should never stop or shut a vehicle off
when crossing deep water unless you ingested
water into the engine air intake. If the engine stalls,
do not attempt to restart it. Determine if it has
ingested water first. The key to any crossing is low
and slow. Shift into FIRST gear (manual
transmission), or DRIVE (automatic transmission),
with the transfer case in the 4L position and
proceed very slowly with a constant slow speed
(3 to 5 mph {5 to 8 km/h} maximum) and light
throttle. Keep the vehicle moving; do not try to
accelerate through the crossing. After crossing any
water higher than the bottom of the axle
differentials, you should inspect all of the vehicle
fluids for signs of water ingestion.
BEFORE YOU CROSS ANY TYPE OF WATER
As you approach any type of water, you need to
determine if you can cross it safely and
responsibly. If necessary, get out and walk through
the water or probe it with a stick. You need to be
sure of its depth, approach angle, current and
bottom condition. Be careful of murky or muddy
waters; check for hidden obstacles. Make sure you
will not be intruding on any wildlife, and you can
recover the vehicle if necessary. The key to a safe
crossing is the water depth, current and bottom
conditions. On soft bottoms, the vehicle will sink in,
effectively increasing the water level on the
vehicle. Be sure to consider this when determining
the depth and the ability to safely cross.
CROSSING PUDDLES, POOLS, FLOODED
AREAS OR OTHER STANDING WATER
Puddles, pools, flooded or other standing water
areas normally contain murky or muddy waters.
These water types normally contain hidden
obstacles and make it difficult to determine an
accurate water depth, approach angle, and bottom
condition. Murky or muddy water holes are where
you want to hook up tow straps prior to entering.
This makes for a faster, cleaner and easier vehicle
recovery. If you are able to determine you can
safely cross, than proceed using the low and slow
method.
WARNING!
If the engine stalls or you lose headway or
cannot make it to the top of a steep hill or grade,
never attempt to turn around. To do so may
result in tipping and rolling the vehicle, which
may result in severe injury. Always back carefully
straight down a hill in REVERSE. Never back
down a hill in NEUTRAL using only the vehicle
brakes. Never drive diagonally across a hill,
always drive straight up or down.
CAUTION!
Water ingestion into the axles, transmission,
transfer case, engine or vehicle interior can
occur if you drive too fast or through too deep
of water. Water can cause permanent damage
to engine, driveline or other vehicle compo -
nents, and your brakes will be less effective
once wet and/or muddy.
When driving through water, do not exceed
5 mph (8 km/h). Always check water depth
before entering as a precaution, and check all
fluids afterward. Driving through water may
cause damage that may not be covered by the
New Vehicle Limited Warranty.

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330SAFETY
(Continued)
PERIODIC SAFETY CHECKS YOU SHOULD
M
AKE OUTSIDE THE VEHICLE
Tires
Examine tires for excessive tread wear and uneven
wear patterns. Check for stones, nails, glass, or
other objects lodged in the tread or sidewall.
Inspect the tread for cuts and cracks. Inspect
sidewalls for cuts, cracks, and bulges. Check the
lug nut/bolt torque for tightness. Check the tires
(including spare) for proper cold inflation pressure.
Lights
Have someone observe the operation of brake
lights and exterior lights while you work the
controls. Check turn signal and high beam
indicator lights on the instrument panel.
Door Latches
Check for proper closing, latching, and locking.
Fluid Leaks
Check the area under vehicle after overnight
parking for fuel, coolant, oil, or other fluid leaks.
Also, if gasoline fumes are detected or if fuel or
brake fluid leaks are suspected, the cause should
be located and corrected immediately.
 ALWAYS REMOVE THE EXISTING
FLOOR MAT FROM THE VEHICLE before
installing any other floor mat. NEVER
install or stack an additional floor mat
on top of an existing floor mat.
ONLY install floor mats designed to fit your
vehicle. NEVER install a floor mat that cannot
be properly attached and secured to your
vehicle. If a floor mat needs to be replaced,
only use a FCA approved floor mat for the
specific make, model, and year of your
vehicle.
ONLY use the driver’s side floor mat on the
driver’s side floor area. To check for interfer -
ence, with the vehicle properly parked with the
engine off, fully press the accelerator, the
brake, and the clutch pedal (if present) to
check for interference. If your floor mat inter -
feres with the operation of any pedal, or is not
secure to the floor, remove the floor mat from
the vehicle and place the floor mat in your
trunk.
ONLY use the passenger’s side floor mat on
the passenger’s side floor area.
WARNING!
ALWAYS make sure objects cannot fall or slide
into the driver’s side floor area when the
vehicle is moving. Objects can become
trapped under accelerator, brake, or clutch
pedals and could cause a loss of vehicle
control.
NEVER place any objects under the floor mat
(e.g., towels, keys, etc.). These objects could
change the position of the floor mat and may
cause interference with the accelerator,
brake, or clutch pedals.
If the vehicle carpet has been removed and
re-installed, always properly attach carpet to
the floor and check the floor mat fasteners are
secure to the vehicle carpet. Fully press each
pedal to check for interference with the accel -
erator, brake, or clutch pedals then re-install
the floor mats.
It is recommended to only use mild soap and
water to clean your floor mats. After cleaning,
always check your floor mat has been properly
installed and is secured to your vehicle using
the floor mat fasteners by lightly pulling mat.
WARNING!

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353
SERVICING AND MAINTENANCE
SCHEDULED SERVICING — GASOLINE
ENGINE
Your vehicle is equipped with an automatic oil
change indicator system. The oil change indicator
system will remind you that it is time to take your
vehicle in for scheduled maintenance.
Based on engine operation conditions, the oil
change indicator message will illuminate. This
means that service is required for your vehicle.
Operating conditions such as frequent short-trips,
trailer tow, or extremely hot or cold ambient
temperatures will influence when the “Change Oil”
or “Oil Change Required” message is displayed.
Have your vehicle serviced as soon as possible,
within the next 500 miles (805 km).
On vehicles equipped with an instrument cluster
display, “Oil Change Required” will be displayed
and a single chime will sound, indicating that an oil
change is necessary. On vehicles not equipped with an instrument
cluster display, “Change Oil” will flash in the
instrument cluster odometer and a single chime
will sound, indicating that an oil change is
necessary.
An authorized dealer will reset the oil change
indicator message after completing the scheduled
oil change. To reset the system follow the steps
described Ú
page 122.
NOTE:Under no circumstances should oil change
intervals exceed 10,000 miles (16,000 km),
12 months or 350 hours of engine run time,
whichever comes first. The 350 hours of engine
run or idle time is generally only a concern for fleet
customers. Once A Month Or Before A Long Trip:
Check engine oil level.
Check windshield washer fluid level.
Check the tire pressures and look for unusual
wear or damage, rotate at the first sign of irreg
-
ular wear.
Check the fluid levels of the coolant reservoir,
brake master cylinder, and power steering, and
fill as needed.
Check function of all interior and exterior lights.
8

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SERVICING AND MAINTENANCE355
Mileage Or Time Passed (Whichever Comes First)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
Additional Inspections
Inspect the CV/Universal joints. X X X X X X X X X X X X X X
Inspect front suspension, rear suspension, tie rod ends, and
replace if necessary. X
XXXXXX
Inspect the front and rear axle fluid. XXXX
Inspect the brake linings, replace as necessary. XXXXXXX
Adjust parking brake on vehicles equipped with four wheel disc
brakes. X
XXXXXX
Inspect transfer case fluid. XXX
Additional Maintenance
Replace engine air cleaner filter. XXXXX
Replace cabin air filter. To be replaced every 12,000 miles (19,000 km).
Replace spark plugs – 3.6L Engine.
1X
Flush and replace the engine coolant at 10 years or
150,000 miles (240,000 km), whichever comes first. X
X
8

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SERVICING AND MAINTENANCE357
SCHEDULED SERVICING — DIESEL ENGINE
Your vehicle is equipped with an automatic oil
change indicator system. The oil change indicator
system will remind you that it is time to take your
vehicle in for scheduled maintenance.
Based on engine operation conditions, the oil
change indicator message will illuminate. This
means that service is required for your vehicle.
Operating conditions such as frequent short-trips,
trailer tow, extremely hot or cold ambient
temperatures will influence when the “Oil Change
Required” message is displayed. Have your vehicle
serviced as soon as possible, within the next
500 miles (805 km).
An authorized dealer will reset the oil change
indicator message after completing the scheduled
oil change. If a scheduled oil change is performed
by someone other than an authorized dealer, to
reset the message Úpage 121.
NOTE:Under no circumstances should oil change
intervals exceed 10,000 miles (16,000 km) or
12 months, whichever comes first.
Engine Oil Filter Replacement
Residual oil in the housing may spill from the
housing when the new filter is installed if the
residual oil is not either removed from the housing
or enough time has not elapsed to allow the oil to
drain back into the engine. When servicing the oil
filter on this engine, open the filter cap
approximately six turns until the cap o-ring is
visible and stop. Wait five minutes with the cap in
this position to allow dirty engine oil to drain back
into the engine. After five minutes, the cap and
filter assembly can be removed and discarded. Once A Month Or Before A Long Trip:Check engine oil level
Check windshield washer fluid level
Check the tire pressures and look for unusual
wear or damage
Check the fluid levels of the coolant reservoir,
brake master cylinder, and fill as needed
Check function of all interior and exterior lights
8

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358SERVICING AND MAINTENANCE
MAINTENANCE PLAN — DIESEL FUEL UP TO B5 BIODIESEL
Refer to the Maintenance Plans for required maintenance.
At Every Oil Change Interval As Indicated By Oil Change Indicator System:
Change oil and filter.
Completely fill the Diesel Exhaust Fluid tank.
Drain water from fuel filter assembly.
Rotate the tires at the first sign of irregular wear, even if it occurs before the oil indicator system turns on.
Inspect battery and clean and tighten terminals as required.
Inspect the CV/Universal joints.
Inspect brake pads, shoes, rotors, drums, hoses and parking brake.
Inspect engine cooling system protection and hoses.
Inspect exhaust system.
Inspect engine air cleaner filter if using in dusty or off-road conditions, replace engine air cleaner filter if necessary.
At Every Second Oil Change Interval As Indicated By Oil Change Indicator System:
Change fuel filter.

23_JT_OM_EN_USC_t.book Page 358

SERVICING AND MAINTENANCE359
Mileage Or Time Passed (Whichever Comes First)
10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
16,000
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
Additional Inspections
Completely fill the Diesel Exhaust Fluid tank. X X X X X X X X X X X X X X X
Inspect the CV/Universal joints. X X X X X X X X X X X X X X X
Inspect front suspension, tie rod ends, and replace if
necessary. X X X X X X X
Inspect the front and rear axle fluid, change if using your
vehicle for police, taxi, fleet, off-road or frequent trailer
towing. X X X X X X X
Inspect the brake linings, parking brake function. X X X X X X X
Inspect transfer case fluid. XXX
Additional Maintenance
Drain water from fuel filter assembly. X X X X X X X X X X X X X X X
8

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