2012 JEEP GRAND CHEROKEE fuel type

•Press the ENGINE START/STOP button a third time
to return the ignition switch to the OFF position (EVIC
displays “IGNITION MODE OFF”).
Extreme Cold Weather (Below –20°F Or29°C)
To ensure reliable starting at these temperatures, use of
an externally powered electric engine block heater (avail-
able from your authorized dealer) is recommended.
If Engine Fails To Start
WARNING!
•Never pour fuel or other flammable liquids into
the throttle body air inlet opening in an attempt to
start the vehicle. This could result in a flash fire
causing serious personal injury.
(Continued)
WARNING! (Continued)
•Do not attempt to push or tow your vehicle to get
it started. Vehicles equipped with an automatic
transmission cannot be started this way. Unburned
fuel could enter the catalytic converter and once
the engine has started, ignite and damage the
converter and vehicle. If the vehicle has a dis-
charged 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 dan-
gerous if done improperly. Refer to “Jump Start-
ing” in “What To Do In Emergencies” for further
information.
Clearing A Flooded Engine (Using ENGINE
START/STOP Button)
If the engine fails to start after you have followed the
“Normal Starting” or “Extreme Cold Weatherproce-
dures, it may be flooded. To clear any excess fuel, press
5
STARTING AND OPERATING 379

WARNING! (Continued)
•Unequal tire pressures from one side of the ve-
hicle to the other can cause the vehicle to drift to
the right or left.
•Always drive with each tire inflated to the recom-
mended cold tire inflation pressure.
Economy
Improper inflation pressures can cause uneven wear
patterns to develop across the tire tread. These abnormal
wear patterns will reduce tread life resulting in a need for
earlier tire replacement. Under-inflation also increases
tire rolling resistance resulting in higher fuel
consumption.
Ride Comfort And Vehicle Stability
Proper tire inflation contributes to a comfortable ride.
Over-inflation produces a jarring and uncomfortable
ride. Both under-inflation and over-inflation affect thestability of the vehicle and can produce a feeling of
sluggish response or over responsiveness in the steering.
Unequal tire pressures can cause erratic and unpredict-
able steering response.
Unequal tire pressure from side to side may cause the
vehicle to drift left or right.
Tire Inflation Pressures
The proper cold tire inflation pressure is listed on the
driver’s side “B” Pillar or rear edge of the driver’s side
door.
The pressure should be checked and adjusted, as well as
inspected for signs of tire wear or visible damage, at least
once a month. Use a good quality pocket-type gauge to
check tire pressure. Do not make a visual judgement
when determining proper inflation. Radial tires may look
properly inflated even when they are under-inflated.5
STARTING AND OPERATING 419

be ON. In this situation, the Tire Pressure Monitoring
Telltale Light will turn OFF only after the tires have been
inflated to the vehicle’s recommended cold tire pressure
value.
CAUTION!
•The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures have
been established for the tire size equipped on your
vehicle. Undesirable system operation or sensor
damage may result when using replacement
equipment that is not of the same size, type, and/or
style. Aftermarket wheels can cause sensor dam-
age. Do not use aftermarket tire sealants or balance
beads if your vehicle is equipped with a TPMS, as
damage to the sensors may result.
(Continued)
CAUTION! (Continued)
•After inspecting or adjusting the tire pressure
always reinstall the valve stem cap. This will
prevent moisture and dirt from entering the valve
stem, which could damage the Tire Pressure Moni-
toring Sensor.
NOTE:
•The TPMS is not intended to replace normal tire care
and maintenance, or to provide warning of a tire
failure or condition.
•The TPMS should not be used as a tire pressure gauge
while adjusting your tire pressure.
•Driving on a significantly under-inflated tire causes
the tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel efficiency and tire
tread life, and may affect the vehicle’s handling and
stopping ability.
430 STARTING AND OPERATING

FLUIDS, LUBRICANTS, AND GENUINE PARTS
Engine
Component Fluid, Lubricant, or Genuine Part
Engine Coolant MOPARAntifreeze/Coolant 5 Year/100,000 Mile Formula HOAT (Hy-
brid Organic Additive Technology) or equivalent.
Engine Oil For best performance and maximum protection under all types of operat-
ing conditions, the manufacturer only recommends full synthetic engine
oils that meet the requirements of Chrysler Material Standard MS-10725
and are approved to MB 229.3 or MB 229.5. The manufacturer recom-
mends the use of a full synthetic 5W–40 or equivalent engine oil.
Engine Oil Filter MOPAREngine Oil Filter or equivalent.
Spark Plugs LZTR6AP11EG (Gap 0.043 in [1.1 mm])
Fuel Selection Premium Unleaded 91 Octane Only or Higher.
518 MAINTAINING YOUR VEHICLE

Adaptive Cruise Control (ACC) (Cruise Control) . . 201
Adding Engine Coolant (Antifreeze).......... 491
Adding Fuel........................... 440
Additives, Fuel......................... 438
Air Conditioner Maintenance............... 481
Air Conditioning Refrigerant............... 482
Air Conditioning System.................. 361
Air Conditioning, Operating Tips............ 367
Air Pressure, Tires....................... 419
Airbag.............................. 67,76
Airbag Deployment....................... 78
Airbag Light..................... 75,80,97,284
Airbag Maintenance....................... 79
Airbag, Side........................ 70,73,76
Airbag, Window (Side Curtain)........... 71,73,76
Alarm (Security Alarm)................. 18,292
Alarm, Panic............................ 24
Alterations/Modifications, Vehicle............. 8
Antenna, Satellite Radio................... 347Anti-Lock Brake System (ABS).............. 400
Anti-Lock Warning Light.................. 291
Anti-Theft System....................... 292
Antifreeze (Engine Coolant)..............490,517
Disposal........................... 492
Appearance Care........................ 499
Assistance Towing....................... 125
Auto Down Power Windows................ 41
Automatic Dimming Mirror................ 108
Automatic Door Locks..................... 33
Automatic Headlights.................... 180
Automatic Temperature Control (ATC)......... 361
Automatic Transmission................382,498
Autostick.......................... 389
Fluid Level Check.................... 499
FluidType ......................... 498
Special Additives..................... 498
Autostick............................. 389
Auxiliary Electrical Outlet (Power Outlet)...... 258
548 INDEX