2015 Ram 2500 ground clearance

NOTE:The vehicle will automatically enter Aero Mode
when the vehicle speed remains between 62 mph
(100 km/h) and 66 mph (106 km/h) for greater than 20
seconds or if the vehicle speed exceeds 66 mph
(106 km/h).
• Normal Ride Height (NRH) – This is the standard
position of the suspension and is meant for normal
driving.
• Off-Road 1 (OR1) (Raises the vehicle approximately
1 in [26 mm]) – This position should be the primary
position for all off-road driving until Off Road 2 (OR2)
is needed. A smoother and more comfortable ride will
result. To enter OR1, push the “Up” button once from
the NRH position while the vehicle speed is below
35 mph (56 km/h). When in the OR1 position, if the
vehicle speed remains between 40 mph (64 km/h) and
50 mph (80 km/h) for greater than 20 seconds or if the
vehicle speed exceeds 50 mph (80 km/h), the vehicle will be automatically lowered to NRH. Off-Road 1
may not be available due to vehicle payload, an
EVIC/DID message will be displayed when this oc-
curs. Refer to “Electronic Vehicle Information Center
(EVIC) or Driver Information Display (DID)” in “Un-
derstanding Your Instrument Panel” for further infor-
mation.
• Off-Road 2 (OR2) (Raises the vehicle approximately
2 in [51 mm]) – This position is intended for off-
roading use only where maximum ground clearance is
required. To enter OR2, push the “Up” button twice
from the NRH position or once from the OR1 position
while vehicle speed is below 20 mph (32 km/h). While
in OR2, if the vehicle speed exceeds 25 mph (40 km/h)
the vehicle height will be automatically lowered to
OR1. Off-Road 2 may not be available due to vehicle
payload, an EVIC/DID message will be displayed
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Crossing Logs
To cross a log, approach it at a slight angle (approxi-
mately 10 to 15 degrees). This allows one front tire to be
on top of the log while the other just starts to climb the
log. While climbing the log, modulate your brake and
accelerator to avoid spinning the log out from under your
tires. Then ease the vehicle off the log using your brakes.
CAUTION!
Do not attempt to cross a log with a greater diameter
than the running ground clearance or the vehicle will
become high centered.
Getting High Centered
If you get hung up or high centered on an object, get out
of the vehicle and try to determine what the vehicle is
hung up on, where it is contacting the underbody and
what is the best direction to recover the vehicle. Depend-
ing on what you are in contact with, jack the vehicle up
and place a few rocks under the tires so the weight is off
of the high point when you let the vehicle down. You can
also try rocking the vehicle or winching the vehicle off
the object.
CAUTION!
Winching or rocking the vehicle off hard objects
increases the risk of underbody damage.
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crossing is the water depth, current and bottom con-
ditions. On soft bottoms the vehicle will sink in,
effectively increasing the water level on the vehicle. Be
sure to consider this when determining the depth and
the ability to safely cross.
• Crossing Puddles, Pools, Flooded Areas Or Other
Standing Water – Puddles, pools, flooded or other
standing water areas normally contain murky or
muddy waters. These water types normally contain
hidden obstacles and make it difficult to determine an
accurate water depth, approach angle, and bottom
condition. Murky or muddy water holes are where
you want to hook up tow straps prior to entering. This
makes for a faster, cleaner and easier vehicle recovery.
If you are able to determine you can safely cross, than
proceed using the low and slow method.CAUTION!
Muddy waters can reduce the cooling system effec-
tiveness by depositing debris onto the radiator.
• Crossing Ditches, Streams, Shallow Rivers Or Other
Flowing Water –
Flowing water can be extremely
dangerous. Never attempt to cross a fast running stream
or river even in shallow water. Fast moving water can
easily push your vehicle downstream sweeping it out of
control. Even in very shallow water, a high current can
still wash the dirt out from around your tires putting
you and your vehicle in jeopardy. There is still a high
risk of personal injury and vehicle damage with slower
water currents in depths greater than the vehicle’s
running ground clearance. You should never attempt to
cross flowing water which is deeper than the vehicle’s
running ground clearance. Even the slowest current can
push the heaviest vehicle downstream out of control if
538 STARTING AND OPERATING

While studded tires improve performance on ice, skid
and traction capability on wet or dry surfaces may be
poorer than that of non-studded tires. Some states pro-
hibit studded tires; therefore, local laws should be
checked before using these tire types.
Run Flat Tires — If Equipped
Run Flat tires allow you the capability to drive 50 miles
(80 km) at 50 mph (80 km/h) after a rapid loss of inflation
pressure. This rapid loss of inflation is referred to as the
Run Flat mode. A Run Flat mode occurs when the tire
inflation pressure is of/or below 14 psi (96 kPa). Once a
Run Flat tire reaches the run flat mode it has limited
driving capabilities and needs to be replaced immedi-
ately. A Run Flat tire is not repairable.
It is not recommended driving a vehicle loaded at full
capacity or to tow a trailer while a tire is in the run flat
mode.See the tire pressure monitoring section for more infor-
mation.
Spare Tires — If Equipped
NOTE:
For vehicles equipped with Tire Service Kit
instead of a spare tire, please refer to “Tire Service Kit” in
“What To Do In Emergencies” for further information.
CAUTION!
Because of the reduced ground clearance, do not take
your vehicle through an automatic car wash with a
compact or limited-use temporary spare installed.
Damage to the vehicle may result.
Spare Tire Matching Original Equipped Tire And
Wheel — If Equipped
Your vehicle may be equipped with a spare tire and
wheel equivalent in look and function to the original
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1. Turn the wheel so that the valve stem is facing theground and toward the rear of the vehicle for conve-
nience in checking the spare tire inflation. Slide the
wheel retainer through the center of the wheel. 2. Lift the spare tire with one hand to give clearance to
tilt the retainer at the end of the cable and position it
properly across the wheel opening.
Reinstalling The Retainer
Pushing The Retainer Through The Center Of The
Wheel And Positioning It
720 WHAT TO DO IN EMERGENCIES