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Refer  to  “Starting  The  Engine”  in  “Starting
And Operating” for further information.
NOTE:
The  “Wait  To  Start”  telltale  may  not  illumi-
nate  if  the  intake  manifold  temperature  is
warm enough.
 — Low Diesel Exhaust Emissions Additive 
AdBlue® Indicator Light — If Equipped
The  Low  Diesel  Exhaust  Emissions  Additive
AdBlue®  indicator  light  illuminates  when
the AdBlue® (UREA) level is low.
Fill  the  AdBlue®  tank  as  soon  as  possible
with  at  least  1.3  gallons  (5  liters)  of
AdBlue®.
If  filling  the  tank  is  done  with  a  remaining
range of AdBlue® in the tank equal to zero,
you  may  need  to  wait  two  minutes  before
starting the vehicle.
Refer to “Adding AdBlue®” in “Starting And
Operating” for further information.
 — Water In Fuel Indicator Light — If 
Equipped
The “Water In Fuel Indicator Light” will illu -
minate  when  there  is  water  detected  in  the
fuel  filter.  If  this  light  remains  on,  DO  NOT start  the  vehicle  before  you  drain  the  water
from  the  fuel  filter  to  prevent  engine
damage,  and  please  see  an  authorized
dealer.
Green Indicator Lights
 — Adaptive Cruise Control (ACC) Set With 
No Target Detected Indicator Light — If 
Equipped
This  light  will  turn  on  when  the  Adaptive
Cruise  Control  is  set  and  there  is  no  target
vehicle  detected.  Refer  to  “Adaptive  Cruise
Control  (ACC)  —  If  Equipped”  in  “Starting
And Operating” for further information.
 — Adaptive Cruise Control (ACC) Set With 
Target Light — If Equipped
This  will  display  when  the  ACC  is  set  and  a
target vehicle is detected. Refer to “Adaptive
Cruise  Control  (ACC)  —  If  Equipped”  in
“Starting And Operating” for further informa -
tion.
 — 4WD Auto Indicator Light — If 
Equipped
This light alerts the driver that the vehicle is
in  the  four-wheel  drive  auto  mode.  The
system  will  provide  power  to all  four  wheels
and  shift  the  power  between  the  front  and
rear  axles  as  needed.  This  will  provide
maximum traction in dry and slippery condi -
tions.
 — Active Speed Limiter SET Indicator 
Light — If Equipped With A Premium 
Instrument Cluster
This indicator  light will illuminate when  the
Active  Speed  Limiter  is  on  and  set  to  a
specific speed.
Refer  to  “Active  Speed  Limiter  —  If
Equipped”  in  “Starting  And  Operating”  for
further information.
 CAUTION!
The  presence  of  water  in  the  fuel  system
circuit  may  cause  severe  damage  to  the
injection  system  and  irregular  engine
operation.  If  the  indicator  light  is
illuminated,  contact  an  authorized  dealer
as soon as possible to bleed the system. If
the  above  indications  come  on
immediately  after  refuelling,  water  has
probably been poured into the tank: switch
the engine off immediately and contact an
authorized dealer.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book  Page 73