2016 Ram 2500 battery

4. Connect the opposite end of the negative(-)jumper
cable to a good engine ground (exposed metal part of
the discharged vehicle’s engine) away from the battery
and the fuel injection system.
WARNING!
Do not connect the jumper cable to the negative (-)
post of the discharged battery. The resulting electri-
cal spark could cause the battery to explode and
could result in personal injury. Only use the specific
ground point, do not use any other exposed metal
parts.
5. Start the engine in the vehicle that has the booster battery, let the engine idle a few minutes, and then
start the engine in the vehicle with the discharged
battery.
CAUTION!
Do not connect jumper cable to any of the fuses on
the positive battery terminal. The resulting electrical
current will blow the fuse.
6. Once the engine is started, remove the jumper cables in the reverse sequence:
Disconnecting The Jumper Cables
1. Disconnect the negative (-)end of the jumper cable
from the engine ground of the vehicle with the dis-
charged battery.
2. Disconnect the opposite end of the negative (-)jumper
cable from the negative (-)post of the booster battery.
3. Disconnect the positive (+)end of the jumper cable
from the positive (+)post of the booster battery.
774 WHAT TO DO IN EMERGENCIES

4. Disconnect the opposite end of the positive(+)jumper
cable from the positive (+)post of the vehicle with the
discharged battery.
If frequent jump-starting is required to start your vehicle
you should have the battery and charging system in-
spected at your authorized dealer.
CAUTION!
Accessories plugged into the vehicle power outlets
draw power from the vehicle’s battery, even when not
in use (i.e., cellular devices, etc.). Eventually, if
plugged in long enough without engine operation,
the vehicle’s battery will discharge sufficiently to
degrade battery life and/or prevent the engine from
starting.
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 push the brake
pedal to engage DRIVE or REVERSE.
6
WHAT TO DO IN EMERGENCIES 775

MANUAL PARK RELEASE — 8 SPEED
TRANSMISSION
WARNING!
Always secure your vehicle by fully applying the
parking brake, before activating the Manual Park
Release. Activating the Manual Park Release will
allow your vehicle to roll away if it is not secured by
the parking brake or by proper connection to a tow
vehicle. Activating the Manual Park Release on an
unsecured vehicle could lead to serious injury or
death for those in or around the vehicle.
In order to push or tow the vehicle in cases where the
transmission will not shift out of PARK (such as a dead
battery), a Manual Park Release is available. Follow these steps to activate the Manual Park Release:
1. Firmly apply the parking brake.
Manual Park Release Pull Strap
780 WHAT TO DO IN EMERGENCIES

If you must use the accessories (wipers, defrosters, etc.)
while being towed, the ignition must be in the ON/RUN
position, not the ACC position.
If the key fob is unavailable or the vehicle’s battery is
discharged, refer to ”Manual Park Release” or “Gear
Selector Override” in this section for instructions on
shifting the automatic transmission out of PARK for
towing.
CAUTION!
•Do not use sling type equipment when towing.
Vehicle damage may occur.
• When securing the vehicle to a flat bed truck, do
not attach to front or rear suspension components.
Damage to your vehicle may result from improper
towing.
Two-Wheel Drive Models
The manufacturer recommends towing your vehicle with
all four wheels OFFthe ground using a flatbed.
If flatbed equipment is not available, and the transmis-
sion is operable, this vehicle may be towed (with rear
wheels on the ground) under the following conditions:
• The transmission must be in NEUTRAL.
• The towing speed must not exceed 30 mph (48 km/h).
• The towing distance must not exceed 15 miles (24 km)
for 6-speed transmission, or 30 miles (48 km) for
8-speed transmission.
If the transmission is not operable, or the vehicle must be
towed faster than 30 mph (48 km/h) or farther than 15
miles (24 km) for 6-speed transmission, or 30 miles
(48 km) for 8-speed transmission, tow with the rear
wheels OFFthe ground. Acceptable methods are to tow
the vehicle on a flatbed, or with the front wheels raised
784 WHAT TO DO IN EMERGENCIES

MAINTAINING YOUR VEHICLE
CONTENTS
ENGINE COMPARTMENT — 3.6L ..........790
 ENGINE COMPARTMENT — 5.7L ..........791
 ENGINE COMPARTMENT — 6.4L ..........792
 ONBOARD DIAGNOSTIC SYSTEM (OBD II) . . .793
▫ Onboard Diagnostic System (OBD II)
Cybersecurity ....................... .793
▫ Loose Fuel Filler Cap Message ............794
 EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS ......................... .795
 REPLACEMENT PARTS ..................796 
DEALER SERVICE ..................... .797
 MAINTENANCE PROCEDURES ...........797
▫ Engine Oil ......................... .798
▫ Engine Oil Filter ..................... .802
▫ Engine Air Cleaner Filter ................802
▫ Accessory Drive Belt Inspection ...........806
▫ Maintenance-Free Battery ...............808
▫ Air Conditioner Maintenance .............809
▫ Front Driveshaft Lubrication — 2500/3500
(Four-Wheel Drive Models Only) ..........810
7

ENGINE COMPARTMENT — 3.6L
1 — Air Cleaner Filter
2 — Engine Oil Dipstick
3 — Engine Oil Fill
4 — Brake Fluid Reservoir
5 — Battery6 — Washer Fluid Reservoir
7 — Power Distribution Center (Fuses)
8 — Coolant Pressure Cap
9 — Engine Coolant Reservoir
790 MAINTAINING YOUR VEHICLE

ENGINE COMPARTMENT — 5.7L
1 — Air Cleaner Filter7 — Washer Fluid Reservoir
2 — Automatic Transmission Dipstick (6-Speed Trans Only) 8 — Power Distribution Center (Fuses)
3 — Engine Oil Fill 9 — Power Steering Fluid Reservoir (2500/3500 Models Only)
4 — Engine Oil Dipstick 10 — Coolant Pressure Cap
5 — Brake Fluid Reservoir 11 — Engine Coolant Reservoir
6 — Battery
7
MAINTAINING YOUR VEHICLE 791

ENGINE COMPARTMENT — 6.4L
1 — Coolant Pressure Bottle6 — Battery
2 — Transmission Dipstick 7 — Power Distribution Center (Fuses)
3 — Engine Oil Fill 8 — Washer Solvent
4 — Engine Oil Dipstick 9 — Power Steering Fluid Reservoir
5 — Brake Fluid Reservoir 10 — Air Cleaner Filter
792 MAINTAINING YOUR VEHICLE