Ram 1500 2011 Owner's Manual

Floor ModeAir comes from the floor outlets. A slight amount of
air is directed through the defrost and side window
demister outlets.
Mix Mode Air comes from the floor, defrost and side window
demist outlets. This mode works best in cold or
snowy conditions. It allows you to stay comfortable
while keeping the windshield clear.
Defrost Mode Air comes from the windshield and side window
demist outlets. Use Defrost mode with maximum
blower and temperature settings for best windshield and
side window defrosting.
NOTE: While operating in the other modes, the system
will not automatically sense the presence of fog, mist or
ice on the windshield. Defrost mode must be manually
selected to clear the windshield and side glass. The Air Conditioning (A/C) button allows the
operator to manually activate or deactivate the air
conditioning system. When in A/C mode and the
ATC is set to a cool temperature, dehumidified air flows
through the air outlets. If Economy mode is desired, press
the A/C button to turn off the A/C mode in the ATC
display and deactivate the A/C system.
NOTE:
•If the system is in Mix, Bi-Level or Defrost Mode, the
A/C can be turned off, but the A/C system shall
remain active to prevent fogging of the windows.
•If fog or mist appears on the windshield or side glass,
select Defrost mode and increase blower speed.
Recirculation Control
When outside air contains smoke, odors, or
high humidity, or if rapid cooling is desired,
you may wish to recirculate interior air by
pressing the RECIRCULATION control button.
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Recirculation mode should only be used temporarily. The
recirculation LED will illuminate on the blower control
knob when this button is selected. Push the button a
second time to turn off the Recirculation mode LED and
allow outside air into the vehicle.
NOTE:In cold weather, use of Recirculation mode may
lead to excessive window fogging. The Recirculation
mode is not allowed in the Floor/Defrost Mix and
Defrost modes to improve window clearing operation.
Recirculation will be disabled automatically if these
modes are selected.Summer Operation
The engine cooling system in air conditioned vehicles
must be protected with a high-quality antifreeze coolant
to provide proper corrosion protection and to protect
against engine overheating. A solution of 50% ethylene
glycol antifreeze coolant and 50% water is recommended.
Refer to “Maintenance Procedures” in “Maintaining Your
Vehicle” for proper coolant selection.
Winter Operation
To ensure the best possible heater and defroster perfor-
mance, make sure the engine cooling system is function-
ing properly and the proper amount, type, and concen-
tration of coolant is used. Refer to “Maintenance
Procedures” in “Maintaining Your Vehicle” for proper
coolant selection. Use of the air Recirculation mode
during Winter months is not recommended because it
may cause window fogging.
300 UNDERSTANDING YOUR INSTRUMENT PANEL

Vacation/Storage
Any time 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
fresh air with the blower setting in high. This will ensure
adequate system lubrication to minimize the possibility
of compressor damage when the system is started again.
Window Fogging and Frosting
Vehicle windows tend to fog on the inside of the glass in
mild, rainy and/or humid weather. Windows may frost
on the inside of the glass in very cold weather. To clear
the windows, select Defrost or Mix mode and increase
the front blower speed. Do not use the Recirculation
mode without A/C for long periods, as fogging may
occur.
Outside Air Intake
Make sure the air intake, located directly in front of the
windshield, is free of obstructions such as leaves. Leaves
collected in the air intake may reduce airflow, can cause
odor, and if they enter the plenum they could plug the
water drains. In Winter months make sure the air intake
is clear of ice, slush and snow.
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Operating Tips
302 UNDERSTANDING YOUR INSTRUMENT PANEL

STARTING AND OPERATING
CONTENTS
Starting Procedures .................... 309
▫ Normal Starting ..................... 309
▫ Automatic Transmission ............... 309
▫ Extreme Cold Weather
(Below –20°F Or 29°C)............... 310
▫ If Engine Fails To Start ................ 310
▫ After Starting ....................... 311
 Engine Block Heater — If Equipped ........ 311
 Automatic Transmission ................. 312 ▫
Key Ignition Park Interlock ............. 313
▫ Brake/Transmission Shift Interlock System . . 313
▫ Four–Speed Automatic Transmission – If
Equipped .......................... 313
▫ Five–Speed Automatic Transmission – If
Equipped .......................... 318
 Four-Wheel Drive Operation — If Equipped . . 325
▫ Manually Shifted Transfer Case – If
Equipped .......................... 325
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▫Shifting Procedure – Manually Shifted
Transfer Case ....................... 328
▫ Transfer Case Position Indicator Light ...... 329
▫ Electronically Shifted Transfer Case
(Four-Position Switch) – If Equipped ....... 329
▫ Shifting Procedure ................... 333
▫ Electronically Shifted Transfer Case
(Five-Position Switch) – If Equipped ....... 336
▫ Shifting Procedure ................... 340
 Axle Locker System (2500 Models Only) —
If Equipped .......................... 342
 Stabilizer/Sway Bar System — Power Wagon
Only ............................... 344
 Safe Off-Road Driving — Power Wagon
Only ............................... 347 ▫
Off-Road Driving Tips And Vehicle
Characteristics ...................... 347
▫ Driving In Snow, Mud And Sand ......... 350
▫ Crossing Obstacles (Rocks And Other High
Points) ............................ 351
▫ Hill Climbing ....................... 354
▫ Driving Through Water ................ 356
▫ Airing Down For Off-Road Driving ....... 359
▫ Vehicle Recovery ..................... 360
▫ After Driving Off-Road ................ 363
 Limited-Slip Differential ................. 365
 Driving On Slippery Surfaces ............. 365
▫ Acceleration ........................ 365
▫ Traction ........................... 366
304 STARTING AND OPERATING

Driving Through Water ................. 366
▫ Flowing/Rising Water ................. 367
▫ Shallow Standing Water ............... 367
 Off-Road Driving Tips .................. 369
▫ After Driving Off-Road ................ 369
 Winch Usage (Power Wagon Only) —
If Equipped .......................... 370
▫ Things To Know Before Using Your Winch . . 370
▫ Understanding The Features Of Your
Winch ............................ 372
▫ Winch Accessories .................... 374
▫ Operating Your Winch ................. 375
▫ Rigging Techniques ................... 388
 Power Steering ....................... 390 ▫
Power Steering Fluid Check ............. 391
 Multi-Displacement System (MDS)
(If Equipped) — 5.7L Engine Only .......... 392
 Parking Brake ........................ 392
 Brake System ........................ 394
▫ 3500 Dual Rear Wheel Models Only ....... 394
 Electronic Brake Control System ........... 395
▫ Anti-Lock Brake System (ABS) ........... 395
▫ Traction Control System (TCS) –
If Equipped ........................ 396
▫ Brake Assist System (BAS) – If Equipped . . . 396
▫ Hill Start Assist (HSA) – If Equipped ...... 397
▫ Electronic Stability Control (ESC) – If
Equipped .......................... 400
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STARTING AND OPERATING 305

▫ESC Activation/Malfunction Indicator Light
And ESC Off Indicator Light ............ 403
▫ Trailer Sway Control (TSC) – If Equipped . . . 405
 Tire Safety Information ................. 406
▫ Tire Markings ....................... 406
▫ Tire Identification Number (TIN) ......... 409
▫ Tire Terminology And Definitions ......... 410
▫ Tire Loading And Tire Pressure .......... 411
 Tires — General Information ............. 415
▫ Tire Pressure ....................... 415
▫ Tire Inflation Pressures ................ 416
▫ Tire Pressures For High Speed Operation . . . 417
▫ Radial Ply Tires ..................... 418 ▫
Spare Tire Matching Original Equipped Tire
And Wheel – If Equipped .............. 419
▫ Compact Spare Tire – If Equipped ........ 419
▫ Full Size Spare – If Equipped ............ 420
▫ Limited-Use Spare – If Equipped ......... 420
▫ Tire Spinning ....................... 421
▫ Tread Wear Indicators ................. 422
▫ Life Of Tire ........................ 422
▫ Replacement Tires .................... 423
 Supplemental Tire Pressure Information — If
Equipped ............................ 424
 Tire Chains .......................... 425
 Snow Tires .......................... 427
 Tire Rotation Recommendations ........... 428
306 STARTING AND OPERATING

▫Directional Tires – If Equipped ........... 429
▫ Dual Rear Wheels .................... 429
 Tire Pressure Monitor System (TPMS) ....... 430
▫ Base System ........................ 433
▫ Premium System – If Equipped .......... 435
▫ Tire Pressure Monitor System (TPMS) Tire
Light Load Inflation Switch Description
(2500 Models) – If Equipped ............ 439
▫ General Information .................. 442
 Fuel Requirements ..................... 443
▫ 3.7L And 4.7L Engine ................. 443
▫ 5.7L Engine ........................ 443
▫ Reformulated Gasoline ................ 444
▫ Gasoline/Oxygenate Blends ............. 444▫
E-85 Usage In Non-Flex Fuel Vehicles ...... 445
▫ MMT In Gasoline .................... 445
▫ Materials Added To Fuel ............... 446
▫ Fuel System Cautions ................. 446
▫ Carbon Monoxide Warnings ............ 447
 Flexible Fuel (4.7L Engine Only) —
If Equipped .......................... 448
▫ E-85 General Information ............... 448
▫ Ethanol Fuel (E-85) ................... 449
▫ Fuel Requirements ................... 449
▫ Selection Of Engine Oil For Flexible Fuel
Vehicles (E-85) And Gasoline Vehicles ...... 450
▫ Starting ........................... 450
▫ Cruising Range ...................... 451
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STARTING AND OPERATING 307

▫Replacement Parts ................... 451
▫ Maintenance ........................ 451
 Adding Fuel ......................... 452
▫ Loose Fuel Filler Cap Message ........... 453
 Vehicle Loading ...................... 453
▫ Certification Label ................... 453
 Trailer Towing ........................ 456
▫ Common Towing Definitions ............ 456
▫ Trailer Hitch Classification .............. 460
▫ Trailer Towing Weights (Maximum Trailer
Weight Ratings) ..................... 461
▫ Trailer And Tongue Weight ............. 462▫
Towing Requirements ................. 463
▫ Towing Tips ........................ 472
 Snowplow .......................... 474
▫ 1500 Models Only .................... 474
▫ 2500/3500 Models Only ................ 474
 Recreational Towing
(Behind Motorhome, Etc.) ................ 478
▫ Towing This Vehicle Behind Another
Vehicle ............................ 478
▫ Recreational Towing – Two-Wheel Drive
Models ........................... 479
▫ Recreational Towing – Four-Wheel Drive
Models ........................... 479
308 STARTING AND OPERATING