2009 JEEP WRANGLER stop start

An electronically-actuated trailer brake controller is
required when towing a trailer with electronically
actuated brakes. When towing a trailer equipped with
a hydraulic surge-actuated brake system, an electronic
brake controller is not required.
Trailer brakes are recommended for trailers over
1,000 lbs (454 kg) and required for trailers in excess of
2,000 lbs (907 kg).
CAUTION!
If the trailer weighs more than 1,000 lbs (454 kg)
loaded, it should have its own brakes and they
should be of adequate capacity. Failure to do this
could lead to accelerated brake lining wear, higher
brake pedal effort, and longer stopping distances.
WARNING!
•Do not connect trailer brakes to your vehicle’s
hydraulic brake lines. It can overload your brake
system and cause it to fail. You might not have
brakes when you need them and could have an
accident.
•Towing any trailer will increase your stopping
distance. When towing, you should allow for ad-
ditional space between your vehicle and the ve-
hicle in front of you. Failure to do so could result
in an accident.
5
STARTING AND OPERATING 379

Towing Requirements — Trailer Lights & Wiring
Whenever you pull a trailer, regardless of the trailer size,
stop lights and turn signals on the trailer are required for
motoring safety.
The Trailer Tow Package will include a four–pin wiring
harness. Use a factory-approved trailer harness and
connector.
NOTE:Do not cut or splice wiring into the vehicles
wiring harness.
The electrical connections are all complete to the vehicle
but you must mate the harness to a trailer connector.
Refer to the following illustration.
Four-Pin Connector
1 — Female Pins 4 — Park
2 — Male Pin 5 — Left Stop/Turn
3 — Ground 6 — Right Stop/Turn
380 STARTING AND OPERATING

Towing Tips
Before setting out on a trip, practice turning, stopping
and backing the trailer in an area away from heavy
traffic.
If using a manual transmission vehicle for trailer towing,
all starts must be in first gear to avoid excessive clutch
slippage.
Automatic Transmission
The DRIVE range can be selected when towing. How-
ever, if frequent shifting occurs while in this range, the
“O/D OFF” feature should be selected.
NOTE:Using “O/D OFF” while operating the vehicle
under heavy operating conditions will improve perfor-
mance and extend transmission life by reducing exces-
sive shifting and heat build up. This action will also
provide better engine braking. The automatic transmission fluid and filter should be
changed if you REGULARLY tow a trailer for more than
45 minutes of continuous operation. Refer to the “Main-
tenance Schedule” in Section 8 for the proper mainte-
nance intervals.
NOTE:
Check the automatic transmission fluid level
before towing.
O/D Off
To reduce the potential for automatic transmission over-
heating, select the “O/D OFF” feature when driving in
hilly areas or shift the transmission to DRIVE position 2
on more severe grades. Refer to “Automatic Transmis-
sion” in this section.5
STARTING AND OPERATING 381

wheel nut tightness is 95 ft lbs (130 N·m). If in doubt
about the correct tightness, have them checked with a
torque wrench by your authorized dealer or at a service
station.
10. Remove the jack assembly and wheel blocks.
WARNING!
A loose tire or jack, thrown forward in a collision or
hard stop, could endanger the occupants of the ve-
hicle. Always stow the jack parts and the spare tire in
the places provided.
11. Secure the tire, jack, and tools in their proper
locations.
JUMP-STARTING
If the vehicle has a discharged battery, booster cables may
be used to obtain a start from a booster battery or the
battery in another vehicle. This type of start can be dangerous if done improperly, so follow this procedure
carefully.
WARNING!
•Battery fluid is a corrosive acid solution; do not
allow battery fluid to contact eyes, skin or cloth-
ing. Do not lean over a battery when attaching
clamps or allow the clamps to touch each other. If
acid splashes in your eyes or on skin, flush the
contaminated area immediately with large quanti-
ties of water.
•A battery generates hydrogen gas which is flam-
mable and explosive. Keep flames or sparks away
from the vent holes.
•Do not use a booster battery or any other booster
source that has a greater than 12 Volt system (i.e.,
do not use a 24 Volt power source).
394 WHAT TO DO IN EMERGENCIES

WARNING!
A hot exhaust system can start a fire if you park over
materials that can burn. Such materials might be
grass or leaves coming into contact with your exhaust
system. Do not park or operate your vehicle in areas
where your exhaust system can contact anything that
can burn.
In unusual situations involving grossly malfunctioning
engine operation, a scorching odor may suggest severe
and abnormal catalyst overheating. If this occurs, stop
the vehicle, turn off the engine and allow it to cool.
Service, including a tune up to manufacturer’s specifica-
tions, should be obtained immediately.
To minimize the possibility of catalytic converter dam-
age:
•Do not shut off the engine or interrupt the ignition
when the transmission is in gear and the vehicle is in
motion.
•Do not try to start the engine by pushing or towing the
vehicle.
•Do not idle the engine with any spark plug wires
disconnected or removed, such as when diagnostic
testing.
•Do not idle the engine for prolonged periods during
very rough idle or malfunctioning operating condi-
tions.
•Do not allow the vehicle to run out of fuel.
NOTE: Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.7
MAINTAINING YOUR VEHICLE 415

•Or, disconnect the negative cable from the battery.
•Anytime you store your vehicle, or keep it out of
service (i.e., vacation) for two weeks or more, run the
air conditioning system at idle for about five minutes
in the fresh air and high blower setting. This will
ensure adequate system lubrication to minimize the
possibility of compressor damage when the system is
started again.
REPLACEMENT BULBS
Interior LightsBulb Type
Auto. Trans. Indicator Lamp ................. 658
Heater Control Lamps (2) ................... 194
Rocker Switch Indicator Lamp
(Rear Window Defogger, and Rear Wash/Wipe) .... **
Soundbar Dome Lamp ..................... 912
** Bulbs only available from authorized dealer. Exterior Lights
Bulb Type
Backup Lamps (2) ....................... 3157
Center High-Mounted Stop Lamp (1) .........L.E.D.
Fog Lamps ............................ 9145
Front Park/Turn Signal Lamps (2) ............3157
Front Side Marker Lamps (2) ................ 168
Headlamps (2) .......................... H13
Rear Stop/Tail/Turn Lamps (2) ..............3157
License Lamp ........................... 194
NOTE: Numbers refer to commercial bulb types that
can be purchased from your local authorized dealer.
If a bulb needs to be replaced, visit your authorized
dealer or refer to the applicable Service Manual.
7
MAINTAINING YOUR VEHICLE 443

Battery............................... 409
Emergency Starting ..................... 394
Keyless Transmitter Replacement (RKE) ....... 23
Belts, Seat ............................ 39,75
Body Mechanism Lubrication ............... 411
Brake Assist System ...................... 320
Brake Assist Warning Light ................. 211
Brake Control System, Electronic ............. 318
Brake System ........................... 421
Anti-Lock (ABS) .................... 316,319
Master Cylinder ....................... 422
Parking ............................. 315
Warning Light ........................ 202
Brake/Transmission Interlock ............... 286
Break-In Recommendations, New Vehicle ........ 73
Bulb Replacement ..................... 443,444
Bulbs, Light ............................ 76
Capacities, Fluid ........................ 447 Caps, Filler
Fuel ............................... 361
Power Steering ........................ 314
Car Washes ............................ 429
Carbon Monoxide Warning ...............74,360
Cargo Light ............................ 97
Cargo (Vehicle Loading) ................... 363
Cellular Phone ........................ 82,263
Center High Mounted Stop Light ............ 446
Certification Label ....................... 363
Chains, Tire ............................ 350
Changing A Flat Tire ..................... 389
Chart, Tire Sizing ........................ 335
Check Engine Light
(Malfunction Indicator Light) .............210,403
Checking Your Vehicle For Safety ............. 74
Checks, Safety ........................... 74
Child Restraint ...................... 61,68,71
Child Restraint Tether Anchors .............66,68
10
INDEX 483

Jacking Instructions...................... 391
Jump Starting .......................... 394
Key, Programming ........................ 16
Key, Replacement ........................ 15
Key, Sentry (Immobilizer) ................... 14
Key-In Reminder ......................... 13
Keyless Entry System ...................... 19
Keys ................................. 12
Lane Change and Turn Signals .............. 201
Lap Belts .............................. 39
Lap/Shoulder Belts ....................... 39
LATCH
(Lower Anchors and Tether for CHildren) .....66,68
Latches ................................ 76
Lead Free Gasoline ...................... 356
Leaks, Fluid ............................ 76
Light Bulbs ............................. 76 Lights
............................... 76,94
Airbag .......................... 58,76,204
Alarm .............................. 204
Anti-Lock ........................... 203
Anti-Lock Warning ..................... 203
Back-Up ............................ 446
Brake Assist Warning ................. 21 1,331
Brake Warning ........................ 202
Bulb Replacement ...................... 444
Cargo ............................... 97
Center Mounted Stop ................... 446
Check Engine (Malfunction Indicator) ........ 210
Cruise .............................. 205
Daytime Running ....................... 97
Dimmer Switch, Headlight ................ 96
Electronic Stability Program (ESP)
Indicator ......................... 21 1,331
Electronic Throttle Control Warning ......... 212
Engine Temperature Warning .............. 204
10
INDEX 489