2011 JEEP GRAND CHEROKEE oil pressure

Air Conditioner Maintenance
For best possible performance, your air conditioner
should be checked and serviced by an authorized dealer
at the start of each warm season. This service should
include cleaning of the condenser fins and a performance
test. Drive belt condition should also be checked at this
time.
CAUTION!
Do not use chemical flushes in your air conditioning
system as the chemicals can damage your air condi-
tioning components. Such damage is not covered by
the New Vehicle Limited Warranty.
WARNING!
•Use only refrigerants and compressor lubricants
approved by the manufacturer for your air condi-
tioning system. Some unapproved refrigerants are
flammable and can explode, injuring you. Other
unapproved refrigerants or lubricants can cause
the system to fail, requiring costly repairs. Refer to
Warranty Information Book, located on the DVD,
for further warranty information.
•The air conditioning system contains refrigerant
under high pressure. To avoid risk of personal
injury or damage to the system, adding refrigerant
or any repair requiring lines to be disconnected
should be done by an experienced repairman.
NOTE: Use only manufacturer approved A/C System
Sealers, Stop Leak Products, Seal Conditioners, Compres-
sor Oil, and Refrigerants.
7
MAINTAINING YOUR VEHICLE 495

referring to the steps described under “Electronic Vehicle
Information Center (EVIC)/Oil Change Required” in
“Understanding Your Instrument Panel” for further in-
formation.
At Each Stop for Fuel
•Check the engine oil level about five minutes after a
fully warmed engine is shut off. Checking the oil level
while the vehicle is on level ground will improve the
accuracy of the oil level reading. Add oil only when
the level is at or below the ADD or MIN mark.
•Check the windshield washer solvent and add if
required.
Once a Month
•Check tire pressure and look for unusual wear or
damage.
•Check the fluid levels of the coolant reservoir, brake
master cylinder, power steering and transmission
(5.7L only) and add as needed.
•Check all lights and other electrical items for correct
operation.
At Each Oil Change
•Change the engine oil filter.
•Inspect the brake hoses and lines.
CAUTION!
Failure to perform the required maintenance items
may result in damage to the vehicle.
Required Maintenance Intervals
Refer to the Maintenance Schedules on the following
pages for the required maintenance intervals.
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SMAINTENANCE SCHEDULES 539

Coolant Level......................... 506
Disposal of Used Coolant ................ 506
Drain, Flush, and Refill .................. 503
Inspection ........................... 502
Points to Remember .................... 506
Pressure Cap ......................... 505
Radiator Cap ......................... 505
Selection of Coolant (Antifreeze) .........503,533
Cruise Control (Speed Control) .............. 167
Cupholders ............................ 228
Customer Assistance ..................... 555
Data Recorder, Event ...................... 81
Daytime Running Lights ................... 149
Dealer Service .......................... 488
Defroster, Rear Window ................... 238
Defroster, Windshield ................98,326,333
Diagnostic System, Onboard ................ 485Dipsticks
Automatic Transmission ................. 513
Oil (Engine) .......................... 489
Power Steering ........................ 378
Disabled Vehicle Towing ................... 477
Disarming, Theft System ................... 22
Disposal Engine Oil ........................... 492
Used Engine Fluids .................... 492
Door Locks ............................. 33
Door Locks, Automatic .................... 34
Door Opener, Garage ..................... 208
Driving ............................... 370
Off-Pavement ......................... 370
Off-Road ............................ 370
Driving to Achieve Maximum Fuel Economy .... 273
DVD Player (Video Entertainment System™) .... 320
10
INDEX 567

Supplemental Restraint System - Airbag........ 68
Suspension, Air ......................... 365
Sway Control, Trailer ..................... 387
Synthetic Engine Oil ...................... 491
System, Remote Starting .................... 29
Tachometer ............................ 248
Telescoping Steering Column .............160,161
Temperature Control, Automatic (ATC) ........ 328
Temperature Gauge, Engine Coolant .......... 257
Tether Anchor, Child Restraint ............... 86
Theft System Arming ...................... 21
Theft System Disarming .................... 22
Tie Down Hooks, Cargo ................... 236
Tilt Steering Column ................... 160,161
Tire and Loading Information Placard ......... 399
Tire Identification Number (TIN) ............. 397
Tire Markings .......................... 394
Tire Safety Information .................... 394 Tires ...........................
100,403,561
Air Pressure .......................... 404
Chains .............................. 412
Changing ............................ 463
Compact Spare ........................ 407
General Information .................... 403
High Speed .......................... 406
Inflation Pressures ..................... 404
Jacking ............................. 463
Life of Tires .......................... 410
Load Capacity ..................... 399,400
Pressure Monitor System (TPMS) ........... 415
Pressure Warning Light .................. 251
Quality Grading ....................... 561
Radial .............................. 406
Replacement ......................... 411
Rotation ............................ 414
Safety .............................. 394
Sizes ............................... 395
580 INDEX