2016 Ram 2500 service reset

cold temperatures (-16°F [-27°C] or below), operation
may briefly be limited to first and direct gears only. On
trucks with AS69RC transmission, fifth and sixth gears
may be inhibited briefly on cold starts below 41°F (5°C),
and during very cold temperatures (-4°F [-20°C] or
below), operation may briefly be limited to third gear
only. During this condition, the ability of the vehicle to
accelerate under heavily loaded conditions may be re-
duced. In all cases, normal operation will resume once
the transmission temperature has risen to a suitable level.
Transmission Limp Home Mode
Transmission function is monitored electronically for
abnormal conditions. If a condition is detected that could
result in transmission damage, Transmission Limp Home
Mode is activated. In this mode, the transmission remains
in fourth gear (for 68RFE transmission) or third gear (for
AS69RC transmission) regardless of which forward gear
is selected. If an AS69RC-equipped truck enters LimpHome Mode at highway speeds, it will initially engage
fifth gear, until the vehicle slows to a speed where third
gear can be engaged. PARK, REVERSE, and NEUTRAL
will continue to operate. The Malfunction Indicator Light
(MIL) may be illuminated. Limp Home Mode allows the
vehicle to be driven to an authorized dealer for service
without damaging the transmission.
In the event of a momentary problem, the transmission
can be reset to regain all forward gears by performing the
following steps:
1. Stop the vehicle.
2. Shift the transmission into PARK.
3. Turn the ignition switch to the OFF position.
4. Wait approximately 10 seconds.
5
STARTING AND OPERATING 293

5. Restart the engine.
6. Shift into the desired gear range. If the problem is nolonger detected, the transmission will return to normal
operation.
NOTE: Even if the transmission can be reset, we recom-
mend that you visit your authorized dealer at your
earliest possible convenience. Your authorized dealer has
diagnostic equipment to determine if the problem could
recur.
If the transmission cannot be reset, authorized dealer
service is required.Electronic Range Select (ERS) Operation
The Electronic Range Select (ERS) shift control allows the
driver to limit the highest available gear when the
transmission is in DRIVE. For example, if you set the
transmission gear limit to 4 (fourth gear), the transmis-
sion will not shift above fourth gear, but will shift
through the lower gears normally.
You can switch between DRIVE and ERS mode at any
vehicle speed. When the shift lever is in the DRIVE
position, the transmission will operate automatically,
shifting between all available gears. Tapping the ERS (-)
switch will activate ERS mode, display the current gear in
the instrument cluster, and set that gear as the top
available gear. Once in ERS mode, tapping the ERS (-) or
(+) switch will change the top available gear.
294 STARTING AND OPERATING

If Chassis Cab models and Pickup models configured
with optional B20 capability are operated with greater
than 5% levels of Biodiesel, the oil change interval must
not exceed 12,500 miles (20 000 km) under any circum-
stances. See the Fuel Requirements section for more
information regarding operation of Chassis Cab models
and Pickup models configured for use with Biodiesel
blend (B6-B20) fuel meeting ASTM specification D-7467.
Perform Service Indicator — Cummins Diesel
Your vehicle will require emissions maintenance at a set
interval. To help remind you when this maintenance isdue, the Electronic Vehicle Information Center (EVIC) or
Driver information Display (DID) will display “Perform
Service”. When the “Perform Service” message is dis-
played on the EVIC/DID it is necessary to have the
emissions maintenance performed. Emissions mainte-
nance may include replacing the Closed Crankcase Ven-
tilation (CCV) filter element. The procedure for clearing
and resetting the “Perform Service” indicator message is
located in the appropriate Service Information.
382 MAINTENANCE SCHEDULE

Materials Added To..................... .339
Pressure Warning Light ...............197 , 200
Recommendation ...................... .337
Synthetic ............................ .339
Viscosity ............................ .338
Overdrive .............................. .296
Overdrive OFF Switch ..................... .296
Perform Service Indicator, Reset ...............382
Power Take-Off Adapter ...................... .303
Take-Off Operation ..................... .303
PTO (Power Take-Off) ..................... .303
Radiator Cap (Coolant Pressure Cap) ...........355
Remote Starting System .....................170
Resetting Perform Service Indicator ............382Seat Belts
Reminder ............................ .190
Security Alarm .......................... .194
Selection Of Coolant (Antifreeze) ..............374
Shifting ............................... .284
Automatic Transmission ..................286
Manual Transmission ....................298
Signals, Turn ........................... .222
Speed Control Accel/Decel .......................... .180
Cancel .............................. .178
Speed Control (Cruise Control) ................176
Starting ............................... .260
Automatic Transmission ..................261
Engine Block Heater .................265 , 280
Manual Transmission ....................261
Remote ............................. .170
Starting Procedures ....................... .260
400 INDEX - RAM 2500 / 3500 / 4500 / 5500