2015 Ram 1500 Vacuum

CAUTION!
•Many accessories that can be plugged in draw
power from the vehicle’s battery, even when not in
use (i.e., cellular phones, etc.). Eventually, if
plugged in long enough, the vehicle’s battery will
discharge sufficiently to degrade battery life and/or
prevent the engine from starting.
•Accessories that draw higher power (i.e., coolers,
vacuum cleaners, lights, etc.), will discharge the
battery even more quickly. Only use these intermit-
tently and with greater caution.
•After the use of high power draw accessories, or
long periods of the vehicle not being started (with
accessories still plugged in), the vehicle must be
driven a sufficient length of time to allow the
generator to recharge the vehicle’s battery.
CIGAR LIGHTER AND ASH RECEIVER — IF
EQUIPPED
A removable ash receiver and cigar lighter are available.
For vehicles with a bench seat the cupholder tray can be
used to hold the ash receiver.
232 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

To Start The Engine While In Autostop Mode
While in DRIVE the engine will start when the brake
pedal is released or the throttle pedal is depressed. The
transmission will automatically reengage upon engine
restart. During this transition the brakes will hold the
vehicle to avoid undesired vehicle movement.
Conditions that will cause the engine to start automati-
cally while in Autostop mode.
The Engine Will Start Automatically When:
•The transmission selector is moved from DRIVE to
REVERSE or NEUTRAL
•To maintain cabin temperature near the HVAC settings
•HVAC is set to full defrost mode
•Autostop time exceeds 5 minutes
•Battery voltage drops too low
•Low brake vacuum (e.g. after several brake pedal
applications)
•STOP/START OFF switch is pressed
•4WD system is put into 4LO mode
•The emissions system requires it
•A STOP/START system error occurs
Conditions that force an automatic shift to PARK while
in Autostop mode.
The Engine Will Not Start Automatically and the Trans-
mission will be placed in PARK if:
•The driver door is open and brake pedal released
•The driver door is open and the driver seat belt is
unbuckled
•The engine hood has been opened
•A STOP/START system error occurs
5
STARTING AND OPERATING 455

CAUTION!
If the trailer weighs more than 1,000 lbs (454 kg)
loaded, it should have its own brakes and they
should be of adequate capacity. Failure to do this
could lead to accelerated brake lining wear, higher
brake pedal effort, and longer stopping distances.
•Donotinterconnect the hydraulic brake system or
vacuum system of your vehicle with that of the trailer.
This could cause inadequate braking and possible
personal injury.
•An electronically actuated trailer brake controller is
required when towing a trailer with electronically
actuated brakes. When towing a trailer equipped with
a hydraulic surge actuated brake system, an electronic
brake controller is not required.
•Trailer brakes are recommended for trailers over
1,000 lbs (454 kg) and required for trailers in excess of
1,653 lbs (750 kg).
Integrated Trailer Brake Module — If Equipped
Your vehicle may have an Integrated Trailer Brake Mod-
ule (ITBM) for Electric and Electric Over Hydraulic
(EOH) trailer brakes.
NOTE:This module has been designed and verified with
electric trailer brakes and new electric over hydraulic
systems. Some previous EOH systems may not be com-
patible with ITBM.
5
STARTING AND OPERATING 661

Engine Coolant Checks
Check the engine coolant (antifreeze) protection every 12
months (before the onset of freezing weather, where
applicable). If the engine coolant (antifreeze) is dirty or
rusty in appearance, the system should be drained,
flushed and refilled with fresh coolant. Check the front of
the A/C condenser (if equipped) or radiator for any
accumulation of bugs, leaves, etc. If dirty, clean by gently
spraying water from a garden hose vertically down the
face of the A/C condenser (if equipped) or the back of the
radiator core.
Check the engine cooling system hoses for brittle rubber,
cracking, tears, cuts and tightness of the connection at the
coolant recovery bottle and radiator. Inspect the entire
system for leaks.
With the engine at normal operating temperature (but
not running), check the cooling system pressure cap for
proper vacuum sealing by draining a small amount of
engine coolant (antifreeze) from the radiator drain cock.
The radiator drain cock is located in the lower radiator
tank. If the cap is sealing properly, the engine coolant
(antifreeze) will begin to drain from the coolant expan-
sion bottle. DO NOT REMOVE THE COOLANT PRES-
SURE CAP WHEN THE COOLING SYSTEM IS HOT.
Cooling System — Drain Flush And Refill
If the engine coolant (antifreeze) is dirty or contains a
considerable amount of sediment, clean and flush with a
reliable cooling system cleaner. Follow with a thorough
rinsing to remove all deposits and chemicals. Properly
dispose of old engine coolant (antifreeze).
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
7
MAINTAINING YOUR VEHICLE 775

Cavity Cartridge Fuse Micro FuseDescription
F6510 Amp RedUSB interface
F6610 Amp Red Sunroof / Passenger Window Switches / Rain
Sensor
F6710 Amp Red CD / DVD / Bluetooth Hands-free Module – If
Equipped
F6915 Amp Blue Mod SCR 12V (Cummins Diesel) – If Equipped
F7030 Amp GreenFuel Pump Motor
F7125 Amp ClearAmplifier
F7210 Amp Red Voltage Stabilizer Modules – If Equipped
F7320 Amp Yellow Fuel Transfer Pump (HD Only) – If Equipped
F7420 Amp Yellow
(Gas Engine & 1500
LD Diesel)
10 Amp Red (Cum-
mins Diesel Engine)
Brake Vacuum Pump Gas/Diesel – If Equipped
F7510 Amp RedCoolant Temperature Valve Actuator
804 MAINTAINING YOUR VEHICLE