Dif lock Ram 3500 2011 User Guide

NOTE:Left to right wheel speed difference may be
necessary to allow the axle to fully lock. If the indicator
light is flashing after placing the switch in the REAR
LOCK or FRONT/REAR LOCK position, drive the ve-
hicle in a turn or on loose gravel to expedite the locking
action.
WARNING!
Do not use the locked axle position for normal
driving. A locked front axle is intended for off-road
driving only. Locking the front axle during on-road
driving will reduce the steering ability. This could
cause a collision and you may be seriously injured.
To lock the front axle; move the axle locker switch to
FRONT/REAR LOCK while traveling less than 3 mph
(5 km/h). The indicator light will be solid when the front
axle is locked.NOTE:The rear axle must be locked before the front
axle will lock.
To unlock the front axle; move the axle locker switch to
REAR LOCK. The FRONT/REAR LOCK indicator light
will go out when the axle is unlocked.
NOTE:The axle lockers could be torque locked due to
side to side loads on the axle. Driving slowly while
turning the steering wheel from a left hand turn to a right
hand turn or driving in REVERSE for a short distance
may be required to release the torque lock and unlock the
axles.
To unlock the rear axle; move the axle locker switch to
AXLE UNLOCK. The REAR LOCK indicator light will go
out when the rear axle is unlocked.
342 STARTING AND OPERATING

Maintenance
CAUTION!
Do not use ethanol mixture greater than 85% in your
vehicle. It will cause difficulty in cold starting and
may affect driveability.
ADDING FUEL
The fuel filler cap (gas cap) is located behind the fuel
filler door, on the left side of the vehicle. Open the fuel
door and remove the fuel cap by turning it counter-
clockwise.
NOTE:When removing the fuel filler cap, lay the cap
tether in the hook, located on the fuel filler door.
Fuel Filler Cap
444 STARTING AND OPERATING

WARNING!
Improper towing can lead to a collision. Follow these
guidelines to make your trailer towing as safe as
possible:
•Make certain that the load is secured in the trailer
and will not shift during travel. When trailering
cargo that is not fully secured, dynamic load shifts
can occur that may be difficult for the driver to
control. You could lose control of your vehicle and
have a collision.
•When hauling cargo or towing a trailer, do not
overload your vehicle or trailer. Overloading can
cause a loss of control, poor performance or dam-
age to brakes, axle, engine, transmission, steering,
suspension, chassis structure or tires.
(Continued)
WARNING! (Continued)
•Safety chains must always be used between your
vehicle and trailer. Always connect the chains to
the hook retainers of the vehicle hitch. Cross the
chains under the trailer tongue and allow enough
slack for turning corners.
•Vehicles with trailers should not be parked on a
grade. When parking, apply the parking brake on
the tow vehicle. Put the tow vehicle transmission
in PARK. For four-wheel drive vehicles, make sure
the transfer case is not in NEUTRAL. Always,
block orchockthe trailer wheels.
•GCWR must not be exceeded.
•Total weight must be distributed between the tow
vehicle and the trailer such that the following four
ratings are not exceeded:
1. GVWR
(Continued)
456 STARTING AND OPERATING

Adding Engine Coolant (Antifreeze).......... 535
Adding Fuel........................... 444
Adjustable Pedals....................... 133
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 526
Air Conditioner Maintenance............... 528
Air Conditioning........................ 286
Air Conditioning Controls................. 286
Air Conditioning, Operating Tips............ 297
Air Conditioning Refrigerant.............528,529
Air Conditioning System.............286,290,528
Air Pressure, Tires....................412,418
Airbag..............................54,63
Airbag Deployment....................... 64
Airbag Light.....................62,67,84,220
Airbag Maintenance....................... 66
Airbag, Side..........................61,63
Airbag, Window (Side Curtain)...........57,61,63
Alarm Light........................... 210
Alarm, Panic............................ 24Alarm (Security Alarm).................... 18
Alarm System (Security Alarm)............... 18
Alterations/Modifications, Vehicle............. 7
Antenna, Satellite Radio................... 267
Antifreeze (Engine Coolant)..............535,569
Disposal............................ 537
Anti-Lock Brake System (ABS).............. 390
Anti-Lock Warning Light.................. 221
Anti-Theft Security Alarm (Theft Alarm)........ 18
Anti-Theft System........................ 18
Appearance Care........................ 546
Ashtray............................... 163
Auto Down Power Windows................ 35
Automatic Dimming Mirror................. 94
Automatic Headlights.................... 123
Automatic Temperature Control (ATC)......... 290
Automatic Transmission................... 311
Adding Fluid......................... 544
Fluid and Filter Changes................. 545
602 INDEX

Coolant Level......................534,537
Disposal of Used Coolant................ 537
Drain, Flush, and Refill.................. 534
Inspection........................... 537
Points to Remember.................... 538
Pressure Cap......................... 536
Radiator Cap......................... 536
Selection of Coolant (Antifreeze)......535,569,571
Cruise Control (Speed Control).............. 135
Cupholders............................ 166
Customer Assistance..................... 593
Data Recorder, Event...................... 67
Daytime Running Lights................... 127
Dealer Service.......................... 522
Defroster, Rear Window................... 176
Defroster, Windshield................84,288,294
Delay (Intermittent) Wipers................. 130
Differential, Limited-Slip.................. 360Dipsticks
Automatic Transmission................. 544
Power Steering........................ 386
Disabled Vehicle Towing................... 508
Disposal
Antifreeze (Engine Coolant)............... 537
Door Locks............................. 29
Door Opener, Garage..................... 151
Driving
Off-Pavement......................... 343
Off-Road............................ 343
Through Flowing, Rising, or Shallow
Standing Water........................ 362
Driving to Achieve Maximum Fuel Economy.... 231
Dual Rear Wheels.....................423,498
DVD Player (Video Entertainment System™).... 282
E-85 Fuel............................. 440
Electric Rear Window Defrost............... 176
10
INDEX 605

Center Mounted Stop................... 564
Check Engine (Malfunction Indicator)........ 219
Courtesy/Reading..................... 149
Daytime Running...................... 127
Electronic Stability Program (ESP) Indicator . . . 399
Exterior.............................. 86
Fog ..........................124,221,562
Four-Wheel Drive Indicator............... 327
Hazard Warning Flasher................. 482
Headlights........................... 123
High Beam........................129,215
High Beam Indicator.................... 215
High Beam/Low Beam Select............. 129
Illuminated Entry....................... 19
Instrument Cluster..................202,206
Interior..........................125,149
Lights On Reminder.................... 127
Low Fuel............................ 214
Oil Pressure.......................... 217Passing............................. 128
Seat Belt Reminder..................... 222
Security Alarm (Theft Alarm).............. 210
Service............................. 559
Side Marker.......................... 568
Theft Alarm (Security Alarm).............. 210
Tire Pressure Monitoring (TPMS)........217,424
Traction Control....................... 399
Transfer Case......................... 327
Turn Signal...................86,128,559,562
Warning (Instrument Cluster Description) . . 202,206
Limited-Slip Differential................360,542
Loading Vehicle......................... 446
Tires ............................... 407
Locks................................. 29
Child Protection........................ 33
Door................................ 29
Power Door........................... 30
Low Tire Pressure System.................. 424
10
INDEX 611

Phone, Cellular......................... 100
Phone, Hands-Free (Uconnect™)............. 100
Pickup Box............................ 180
Placard, Tire and Loading Information......... 407
Power
Door Locks........................... 30
Mirrors.............................. 96
Outlet (Auxiliary Electrical Outlet).......160,164
Seats............................... 101
Sliding Rear Window................... 177
Steering..........................385,386
Sunroof............................. 157
Windows............................. 34
Power Steering Fluid..................... 572
Pregnant Women and Seat Belts.............. 53
Pretensioners
Seat Belts............................ 51
Programmable Electronic Features............ 238Programming Transmitters
(Remote Keyless Entry).................... 20
Radial Ply Tires......................... 414
Radiator Cap (Coolant Pressure Cap).......534,536
Radio Operation........................ 285
Ramp Travel Index....................... 343
Rear Axle (Differential).................... 541
Rear Cargo Area Utility Rails............... 191
Rear Park Sense System................... 138
Rear Seat, Folding..................... 110,111
Rear Window Features.................... 176
Rear Window, Sliding..................... 177
Reclining Front Seats..................... 108
Reclining Rear Seats...................... 110
Recorder, Event Data...................... 67
Recreational Towing...................... 471
Shifting into Transfer Case Neutral (N)....474,476
Shifting out of Transfer Case Neutral (N) . . 475,479
614 INDEX