
87
Traction Control System (TCS)  
The  Traction  Control  System  (TCS)  monitors  the
amount  of  wheel  spin  of  each  of  the  driven
wheels.  If  wheel  spin  is  detected,  the  TCS  may
apply brake pressure to the spinning wheel(s) and/
or  reduce  engine  power  to  provide  enhanced
acceleration  and  stability.  A  feature  of  the  TCS,
Brake  Limited  Differential  (BLD),  functions
similar  to  a  limited  slip  differential  and  controls
the wheel spin across a driven axle. If one wheel
on a driven axle is spinning faster than the other,
the  system  will  apply  the  brake  of  the  spinning
wheel.  This  will  allow  more  engine  torque  to  be
applied  to  the  wheel  that  is  not  spinning.  BLD
may  remain  enabled  even  if  TCS  and  Electronic
Stability Control (ESC) are in a reduced mode.
AUXILIARY DRIVING 
SYSTEMS
Blind Spot Monitoring (BSM) — If 
Equipped 
The  Blind  Spot  Monitoring  (BSM)  system
uses two radar-based sensors, located inside
the  taillights,  to  detect  highway  licensable
vehicles  (automobiles,  trucks,  motorcycles,
etc.) that enter the blind spot zones from the
rear/front/side of the vehicle.Rear Detection Zones
When  the  vehicle  is  started,  the  BSM  warning
light  will  momentarily  illuminate  in  both  outside
rear  view  mirrors  to  let  the  driver  know  that  the
system  is  operational.  The  BSM  system  sensors
operate when the vehicle is in any forward gear or
REVERSE (R) and enters standby mode when the
vehicle is in PARK (P).
The  BSM  detection  zone  covers  approximately
one lane width on both sides of the vehicle, 12 ft
(3.8 m). The zone length starts at the outside rear
view  mirror  and  extends  approximately  10 ft
(3 m) beyond the rear bumper of the vehicle. The
BSM system monitors the detection zones on both
sides  of  the  vehicle  when  the  vehicle  speed
reaches approximately 6 mph (10 km/h) or higher and will alert the driver of vehicles in these areas.
 NOTE:
The  BSM  system  DOES  NOT  alert  the
driver  about  rapidly  approaching  vehicles
that are outside the detection zones.
The  BSM  system  detection  zone  DOES
NOT  change  if  your  vehicle  is  towing  a
trailer.  Therefore,  visually  verify  the  adja-
cent lane is clear for both your vehicle and
trailer before making a lane change. If the
trailer or other object (i.e., bicycle, sports
equipment)  extends  beyond  the  side  of
your  vehicle,  this  may  result  in  the  BSM
warning  light  remaining  illuminated  the
entire time the vehicle is in a forward gear.
The  Blind  Spot  Monitoring  (BSM)  system
may experience drop outs (blinking on and
off)  of  the  side  mirror  Warning  Indicator
lamps  when  a  motorcycle  or  any  small
object  remains  at  the  side  of  the  vehicle
for extended periods of time (more than a
couple of seconds).
The  area  on  taillights,  where  the  radar
sensors  are  located,  must  remain  free  of
snow,  ice,  and  dirt/road  contamination  so
that the BSM system  can  function properly.
Do  not  block  the  taillights  where  the  radar
sensors  are  located  with  foreign  objects
(bumper stickers, bicycle racks, etc.).
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151
tion. Do  not  pause  with  the  transfer  case  in
N  (Neutral).  Once  the  shift  is  completed,
place the transmission into DRIVE.
NOTE:
Shifting into or out of 4L is possible with the
vehicle  completely  stopped;  however,  diffi-
culty may occur due to the mating teeth not
being properly aligned. Several attempts may
be  required  for  clutch  teeth  alignment  and
shift  completion  to  occur.  The  preferred
method  is  with  the  vehicle  rolling  at  2  to
3 mph  (3  to  5 km/h).  Avoid  attempting  to
engage  or  disengage  4L  with  the  vehicle
moving faster than 2 to 3 mph (3 to 5 km/h).Trac-Lok Rear Axle — If Equipped 
The  Trac-Lok  rear  axle  provides  a  constant
driving force to both rear wheels and reduces
wheel  spin  caused  by  the  loss of  traction at
one driving wheel. If traction differs between
the two rear wheels, the differential automat -
ically  proportions  the  usable  torque  by
providing  more  torque to the  wheel that  has
traction.
Trac-Lok is especially helpful during slippery
driving conditions. With both rear wheels on
a slippery surface, a slight application of the
accelerator will supply maximum traction.
Axle Lock (Tru-Lok) — Rubicon Models  
The  AXLE  LOCK  switch  is  located  on  the  instru -
ment panel (to the right of the steering column).
Axle Lock Switch Panel
This  feature  will  only  activate  when  the
following conditions are met:
Ignition  in  RUN  position,  vehicle  in  4L
(Low) range.
Vehicle speed  should  be  10 mph (16 km/h)
or less.
Both  right  and  left  wheels  on  axle  are  at
the same speed.
To activate the system, push the AXLE LOCK
switch  down  to  lock  the  rear  axle  only  (the
“REAR  ONLY”  will  illuminate),  push  the
switch up to lock the front axle and rear axle
 WARNING!
Failure  to  engage  a  transfer  case  position
completely  can  cause  transfer  case
damage  or  loss  of  power  and  vehicle
control. You could have a collision. Do not
drive  the  vehicle  unless  the  transfer  case
is fully engaged.
 WARNING!
On  vehicles  equipped  with  a  limited-slip
differential,  never run the engine with one
rear wheel off the ground. The vehicle may
drive  through  the  rear  wheel  remaining  on
the ground and cause you to lose control of
your vehicle.
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257
Chassis   
ComponentFluid, Lubricant, or Genuine Part
Automatic Transmission We  recommended  you  use  TUTELA  TRANSMISSION  AS8  Fluid,  or  equivalent,
meeting requirement of FCA Material Standard 9.55550-AV5 or MS.90030-A5.
Failure  to  use  the  correct  fluid  may  affect  the  function  or  performance  of  your
transmission.
Transfer Case We recommend you use TUTELA TRANSMISSION FORCE 4 Fluid, or equivalent,
meeting requirement of FCA Material Standard 9.55550-AV4 or MS.9602.
Axle Differential (Front Axles) We  recommend  you  use  Mopar  Gear  &  Axle  Lubricant  (SAE  75W85)(API  GL-5)
or equivalent.
Axle Differential (Rear M200 Sales Code DRZ) We  recommend  you  use  TUTELA  TRANSMISSION  X-ROAD,  or  equivalent,
meeting  the  requirement  of  FCA  Material  Standard  9.55550-DA7  or  MS.8985
(SAE 75W-140, API GL-5).
Axle Differential (Rear M220 Sales Codes DRE/DRF) We  recommend  you  use  Mopar  Gear  &  Axle  Lubricant  (SAE  75W85)(API  GL-5) or equivalent. Models equipped with Trac-Lok Limited Slip Differential require a
friction modifier additive.
Brake Master Cylinder We recommend you use Mopar DOT 3 Brake Fluid, SAE J1703. If DOT 3 brake
fluid  is  not  available  then  TUTELA  TOP4/S,  FMVSS  no.  116  DOT4,  ISO  4925
SAE J1704, or equivalent, is acceptable.
If  using  DOT  4  brake  fluid,  the  fluid  must  be  changed  every  24 months
regardless of mileage.
Power Steering Reservoir We  recommend  you  use  TUTELA  GI/R,  or  equivalent,  meeting  requirement  of
FCA Material Standard 9.55550-AG3 or MS.90030.
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259
Off Road & Performance:
• Bumpers• Performance Brakes• Rock Rails
• Winches • Axle Locker Kit• Grille Guard
• Performance Axles • Differential Covers• Spare Tire Carrier
• Performance Hoods • LED Off Road Lights• Fender Flares
• Lift Kits • Skid Plates• Tailgate Reinforcement
Exterior:
• Wheels • Hood Lock• Front End Cover
• Spare Tire Covers • Wheel Locks• Parking Cover
• Fuel Doors • Trailer Hitches• LED Lights
• Air Deflectors • Body Graphics• Valve Stem Caps
• Locking Gas Cap • Hood Graphics• Ski And Snowboard Carriers
• Tubular Steps • Satin Black Grille• Roof Basket
• Molded Side Steps • Camping Tent• Roof Basket Net
• Windshield Tie Down Strap • Hood Cover• Towing Kit
• Splash Guards
Interior:
• Hard Top Headliner • Door Sill Guards• Trailrail Cargo Rail
• Premium Carpet Floor Mats • Storage Bags• Trailrail Vertical Cargo Divider
• All Weather Floor Mats • Cargo Tub• Tailgate Table
• Radio Screen Protector • Cargo Tray• Dog Kennel
• Grab Handles • Cargo Net• Dog Partition
Electronics:
• Electronic Vehicle Tracking System
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