2011 JEEP GRAND CHEROKEE Owners Manual

Summer Operation
NOTE:In some cases during high temperature trailer
tow operation the Air Conditioning system performance
may be reduced. This is to help protect the engine from
overheating during the high load condition.
Your air conditioning system is also equipped with an
automatic recirculation system. When the system senses
a heavy load or high heat conditions, it may use partial
Recirculation A/C mode to provide additional comfort.
Winter Operation
When operating the system during the winter months,
make sure the air intake, located directly in front of the
windshield, is free of ice, slush, snow, or other obstructions.
Vacation Storage
Anytime you store your vehicle, or keep it out of service
(i.e. vacation) for two weeks or more, run the air condi-
tioning 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 com-
pressor damage when the system is started again.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 335

Operating Tips Chart
336 UNDERSTANDING YOUR INSTRUMENT PANEL

STARTING AND OPERATING
CONTENTS
Starting Procedures .................... 343
▫ Automatic Transmission ............... 343
▫ Keyless Enter-N-Go ................... 344
▫ Normal Starting ..................... 345
▫ Extreme Cold Weather
(Below –20°F Or 29°C)............... 346
▫ If Engine Fails To Start ................ 347
▫ After Starting ....................... 348
 Engine Block Heater — If Equipped ........ 348
Automatic Transmission ................. 349
▫ Key Ignition Park Interlock ............. 349
▫ Brake/Transmission Shift Interlock System . . 350
▫ Five-Speed Automatic Transmission ....... 350
▫ Gear Ranges ........................ 350
 Four-Wheel Drive Operation ............. 357
▫ Quadra-Trac I Operating Instructions/
Precautions – If Equipped .............. 357
▫ Quadra-Trac II Operating Instructions/
Precautions – If Equipped .............. 358
5

▫Shift Positions ...................... 359
▫ Shifting Procedures ................... 360
▫ Quadra-Drive II System – If Equipped .... 362
 Selec-Terrain™ — If Equipped ............ 363
▫ Description ........................ 363
▫ Electronic Vehicle Information Center (EVIC)
Display Messages .................... 365
 Quadra-Lift™ — If Equipped ............. 365
▫ Description ........................ 365
▫ Electronic Vehicle Information Center (EVIC)
Display Messages .................... 368
▫ Operation ......................... 368
 On-Road Driving Tips .................. 370 
Off-Road Driving Tips .................. 370
▫ Quadra-Lift™ – If Equipped ............ 371
▫ When To Use 4WD Low Range –
If Equipped ........................ 371
▫ Driving Through Water ................ 372
▫ Driving In Snow, Mud And Sand ......... 373
▫ Hill Climbing ....................... 373
▫ Traction Downhill .................... 374
▫ After Driving Off-Road ................ 374
 Power Steering ....................... 375
▫ 3.6L Engine ........................ 375
▫ 5.7L Engine ........................ 377
▫ Power Steering Fluid Check ............. 378
338 STARTING AND OPERATING

Multi-Displacement System (MDS)
(If Equipped) — 5.7L Engine Only .......... 379
 Parking Brake ........................ 379
 Electronic Brake Control System ........... 381
▫ Anti-Lock Brake System (ABS) ........... 381
▫ Traction Control System (TCS) ........... 382
▫ Brake Assist System (BAS) .............. 382
▫ Electronic Roll Mitigation (ERM) ......... 383
▫ Electronic Stability Control (ESC) ......... 384
▫ Trailer Sway Control (TSC) ............. 387
▫ Hill Start Assist (HSA) ................ 387
▫ Ready Alert Braking – If Equipped ........ 390
▫ Rain Brake Support – If Equipped ........ 390▫
Hill Descent Control (HDC) — Four-Wheel
Drive Models With MP3023 Two-Speed
Transfer Case Only ................... 390
▫ ESC Activation/Malfunction Indicator Light
And ESC Off Indicator Light ............ 392
 Tire Safety Information ................. 394
▫ Tire Markings ....................... 394
▫ Tire Identification Number (TIN) ......... 397
▫ Tire Terminology And Definitions ......... 398
▫ Tire Loading And Tire Pressure .......... 399
 Tires — General Information ............. 403
▫ Tire Pressure ....................... 403
▫ Tire Inflation Pressures ................ 404
▫ Tire Pressures For High Speed Operation . . . 406
5
STARTING AND OPERATING 339

▫Radial-Ply Tires ..................... 406
▫ Spare Tire Matching Original Equipped Tire
And Wheel – If Equipped .............. 406
▫ Compact Spare Tire – If Equipped ........ 407
▫ Full Size Spare – If Equipped ............ 408
▫ Limited-Use Spare – If Equipped ......... 408
▫ Tire Spinning ....................... 409
▫ Tread Wear Indicators ................. 410
▫ Life Of Tire ........................ 410
▫ Replacement Tires .................... 411
 Tire Chains (Traction Devices) ............. 412
 Snow Tires .......................... 413
 Tire Rotation Recommendations ........... 414
Tire Pressure Monitor System (TPMS) ....... 415
▫ Base System ........................ 417
▫ Premium System – If Equipped .......... 420
▫ General Information .................. 424
 Fuel Requirements ..................... 424
▫ 3.6L Engine ........................ 424
▫ 5.7L Engine ........................ 424
▫ Reformulated Gasoline ................ 425
▫ Gasoline/Oxygenate Blends ............. 425
▫ E-85 Usage In Non-Flex Fuel Vehicles ...... 426
▫ MMT In Gasoline .................... 427
▫ Materials Added To Fuel ............... 427
▫ Fuel System Cautions ................. 427
340 STARTING AND OPERATING

▫Carbon Monoxide Warnings ............ 428
 Flexible Fuel (3.6L Engine Only) —
If Equipped .......................... 429
▫ E-85 General Information ............... 429
▫ Ethanol Fuel (E-85) ................... 430
▫ Fuel Requirements ................... 430
▫ Selection Of Engine Oil For Flexible Fuel
Vehicles (E-85) And Gasoline Vehicles ...... 431
▫ Starting ........................... 432
▫ Cruising Range ...................... 432
▫ Replacement Parts ................... 432
▫ Maintenance ........................ 432 
Adding Fuel ......................... 433
▫ Fuel Filler Cap (Gas Cap) .............. 433
▫ Loose Fuel Filler Cap Message ........... 436
 Vehicle Loading ...................... 436
▫ Certification Label ................... 436
 Trailer Towing ........................ 438
▫ Common Towing Definitions ............ 439
▫ Trailer Hitch Classification .............. 443
▫ Trailer Towing Weights
(Maximum Trailer Weight Ratings) ........ 444
▫ Trailer And Tongue Weight ............. 445
▫ Towing Requirements ................. 446
▫ Towing Tips ........................ 451
5
STARTING AND OPERATING 341

Snow Plow .......................... 452
 Recreational Towing
(Behind Motorhome, Etc.) ................ 453
▫ Towing This Vehicle Behind
Another Vehicle ..................... 453
▫ Recreational Towing — Two-Wheel Drive
Models ........................... 454 ▫
Recreational Towing — Quadra-Trac I
(Single-Speed Transfer Case) Four-Wheel
Drive Models ....................... 454
▫ Recreational Towing — Quadra–
Trac II /Quadra–Drive II Four-Wheel
Drive Models ....................... 455
342 STARTING AND OPERATING