2015 Ram 1500 steering gear

OFF-ROAD DRIVING TIPS
Care should be taken when attempting to climb steep
hills or driving diagonally across a hill or slope. If natural
obstacles force you to travel diagonally up or down a hill,
choose a mild angle and keep as little side tilt as possible.
Keep the vehicle moving and make turns slowly and
cautiously.
If you must back down a hill, back straight down using
REVERSE gear. Never back down in NEUTRAL or diago-
nally across the hill.
When driving over sand, mud, and other soft terrain,
shift to low gear and drive steadily. Apply the accelerator
slowly to avoid spinning the wheels.
Do not reduce the tire pressures for this type of driving.
After Driving Off-Road
Off-road operation puts more stress on your vehicle than
does most on-road driving. After going off-road, it is
always a good idea to check for damage. That way you
can get any problems taken care of right away and have
your vehicle ready when you need it.
•Completely inspect the underbody of your vehicle.
Check tires, body structure, steering, suspension, and
exhaust system for damage.
•Inspect the radiator for mud and debris and clean as
required.
•Check threaded fasteners for looseness, particularly on
the chassis, drivetrain components, steering, and sus-
pension. Retighten them, if required, and torque to the
values specified in the Service Manual.
•Check for accumulations of plants or brush. These
things could be a fire hazard. They might hide damage
to fuel lines, brake hoses, axle pinion seals, and
propeller shafts.
5
STARTING AND OPERATING 555

Activating HDC
Once HDC is enabled it will activate automatically if
driven down a grade of sufficient magnitude (greater
than approximately 8%). The set speed for HDC is
selectable by the driver, and can be adjusted by using the
Electronic range switches located on steering column
shifter. The following summarizes the HDC set speed:
GearApproximate HDC Set Speed
PNo set speed. HDC may be en-
abled but will not activate
R0.6 mph (1 km/h)
N1.2 mph (2 km/h)
1st0.6 mph (1 km/h)
2nd1.2 mph (2 km/h)
GearApproximate HDC Set Speed
3rd1.8 mph (3 km/h)
4th2.5 mph (4 km/h)
5th3.1 mph (5 km/h)
6th3.7 mph (6 km/h)
7th4.3 mph (7 km/h)
8th5.0 mph (8 km/h)
9th5.6 mph (9 km/h)
NOTE:During HDC the ERS +/- shifter input is used for
HDC target speed selection but will not affect the gear
chosen by the transmission. During HDC the transmis-
sion will shift appropriately for the driver-selected set
speed and corresponding driving conditions.
594 STARTING AND OPERATING

FREEING A STUCK VEHICLE
If your vehicle becomes stuck in mud, sand, or snow, it
can often be moved using a rocking motion. Turn the
steering wheel right and left to clear the area around the
front wheels. Then shift back and forth between DRIVE
and REVERSE (with automatic transmission) or 2nd gear
and REVERSE (with manual transmission), while gently
pressing the accelerator. Use the least amount of accel-
erator pedal pressure that will maintain the rocking
motion, without spinning the wheels or racing the en-
gine.
NOTE:For trucks equipped with 8-speed automatic
transmission: Shifts between DRIVE and REVERSE can
only be achieved at wheel speeds of 5 mph (8 km/h) or
less. Whenever the transmission remains in NEUTRAL
for more than two seconds, you must press the brake
pedal to engage DRIVE or REVERSE.
CAUTION!
Racing the engine or spinning the wheels may lead to
transmission overheating and failure. Allow the en-
gine to idle with the transmission in NEUTRAL for at
least one minute after every five rocking-motion
cycles. This will minimize overheating and reduce
the risk of transmission failure during prolonged
efforts to free a stuck vehicle.
NOTE:Press the#ESC Off#switch, to place the Electronic
Stability Control (ESC) system in#Partial Off#mode,
before rocking the vehicle. Refer to “Electronic Brake
Control” in “Starting And Operating” for further infor-
mation. Once the vehicle has been freed, press the#ESC
Off#switch again to restore#ESC On#mode.
734 WHAT TO DO IN EMERGENCIES

and the rear wheels on a towing dolly, or (when using a
suitable steering wheel stabilizer to hold the front wheels
in the straight position) with the rear wheels raised and
the front wheels on the ground.
CAUTION!
Towing this vehicle in violation of the above require-
ments can cause severe engine and/or transmission
damage. Damage from improper towing is not cov-
ered under the New Vehicle Limited Warranty.
Four-Wheel Drive Models
The manufacturer recommends towing with all wheels
OFFthe ground. Acceptable methods are to tow the
vehicle on a flatbed or with one end of vehicle raised and
the opposite end on a towing dolly.
If flatbed equipment is not available, and the transfer
case is operable, the vehicle may be towed (in the
forward direction, withALLwheels on the ground),IF
the transfer case is in NEUTRAL (N) and the transmis-
sion is inPARK(for automatic transmissions) or in gear
(NOT in NEUTRAL, for manual transmissions). Refer to
“Recreational Towing” in “Starting And Operating” for
further information and detailed instructions.
CAUTION!
•Front or rear wheel lifts must not be used. Internal
damage to the transmission or transfer case will
occur if a front or rear wheel lift is used when
towing.
•Towing this vehicle in violation of the above re-
quirements can cause severe transmission and/or
transfer case damage. Damage from improper tow-
ing is not covered under the New Vehicle Limited
Warranty.
6
WHAT TO DO IN EMERGENCIES 743

WARNING!(Continued)
•Before replacing a fuse, make sure that the ignition
is off and that all the other services are switched off
and/or disengaged.
•If the replaced fuse blows again, contact an autho-
rized dealer.
•If a general protection fuse for safety systems (air
bag system, braking system), power unit systems
(engine system, gearbox system) or steering system
blows, contact an authorized dealer.
Power Distribution Center
The Power Distribution Center is located in the engine
compartment near the battery. This center contains car-
tridge fuses, micro fuses, relays, and circuit breakers. A
description of each fuse and component may be stamped
on the inside cover, otherwise the cavity number of each
fuse is stamped on the inside cover that corresponds to
the following chart.
Power Distribution Center Location
798 MAINTAINING YOUR VEHICLE

ComponentFluid, Lubricant, or Genuine Part
Rear Axle – 1500 ModelsWe recommend you use MOPAR® Synthetic Gear Lu-
bricant SAE 75W-140 (MS-8985). Limited-Slip Rear Ax-
les require the addition of 5 oz. (148 ml) MOPAR®
Limited Slip Additive (MS-10111).
Front and Rear Axle – 2500/3500 ModelsWe recommend you use Synthetic, GL-5 SAE, 75W-90.
Limited slip additive is not required for Limited-Slip
Rear Axles.
Brake Master CylinderWe recommend you use MOPAR® DOT 3. If DOT 3
brake fluid is not available, then DOT 4 is acceptable.
Power Steering Reservoir – 2500/3500 ModelsWe recommend you use MOPAR® Power Steering Fluid
+4 or MOPAR® ATF+4® Automatic Transmission Fluid.
7
MAINTAINING YOUR VEHICLE 825