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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        138
STARTING AND OPERATING
STARTING THE ENGINE 
Before starting your vehicle, adjust your seat,
adjust  both  inside  and  outside  mirrors,  and
fasten your seat belts.
Normal Starting — Gasoline Engine    
To  Turn  On  The  Engine  Using  The  ENGINE
START/STOP Button
1. The transmission must be in PARK (P) orNEUTRAL (N).
2. Press  and  hold  the  brake  pedal  while pushing  the  ENGINE  START/STOP
button once.
3. The  system  takes  over  and  attempts  to start  the  vehicle.  If  the  vehicle  fails  to
start, the starter will disengage automat -
ically after 10 seconds.
4. If  you  wish  to  stop  the  cranking  of  the engine prior to the engine starting, push
the ENGINE START/STOP button again.
NOTE:
Normal  starting  of  either  a  cold  or  a  warm
engine  is  obtained  without  pumping  or
pressing the accelerator pedal.
To  Turn  Off  The  Engine  Using  ENGINE  START/
STOP Button
1. Place  the  gear  selector  in  PARK,  then push  and  release  the  ENGINE  START/
STOP button. 2. The ignition will return to the OFF mode.
3. If the gear  selector is not in PARK (with
vehicle  stopped)  and  the  ENGINE
START/STOP button is pushed once, the
transmission  will  automatically  select
PARK  and  the  engine  will  turn  off,
however  the  ignition  will  remain  in  the
ACC  mode  (NOT  the  OFF  mode).  Never
leave a vehicle out of the PARK position,
or it could roll.
4. If the gear selector is in NEUTRAL, and the vehicle  speed  is  below  5 mph  (8 km/h),
pushing  the  ENGINE  START/STOP  button
once  will  turn  the  engine  off.  The  ignition
will remain in the ACC mode.
5. If  the  vehicle  speed  is  above  5 mph (8 km/h),  the  ENGINE  START/STOP
button  must be  held for  two seconds  (or
three  short  pushes  in  a  row)  to  turn  the
engine off. The ignition will remain in the
ACC  mode  (NOT  the  OFF  mode)  if  the
engine  is  turned  off  when  the  transmis -
sion is not in PARK.
 WARNING!
When exiting the vehicle, always remove
the  key  fob  from  the  ignition  and  lock
your vehicle.
Never  leave  children  alone  in  a  vehicle,
or with access to an unlocked vehicle.
Allowing children to be in a vehicle unat -
tended  is  dangerous  for  a  number  of
reasons. A child or others could be seri -
ously  or  fatally  injured.  Children  should
be  warned  not  to  touch  the  parking
brake, brake pedal or the gear selector.
Do  not  leave  the  key  fob  in  or  near  the
vehicle,  or  in  a  location  accessible  to
children.  A  child  could  operate  power
windows,  other  controls,  or  move  the
vehicle.
Do  not  leave  children  or  animals  inside
parked  vehicles  in  hot  weather.  Interior
heat build-up may cause serious injury or
death.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book  Page 138