RAM 1500 2019 User Manual page 138

This is a normal condition, and precision
shifts will develop within a few hundred
miles (kilometers).
Only shift from DRIVE to PARK or REVERSE
when the accelerator pedal is released and
the vehicle is stopped. Be sure to keep your
foot on the brake pedal when shifting
between these gears.
The transmission gear selector has only
PARK, REVERSE, NEUTRAL, and DRIVE
positions. Manual downshifts can be made
using the Electronic Range Select (ERS)
shift control. Pressing the GEAR-/GEAR+
switches (on the steering wheel) while in the
DRIVE position will select the highest avail-
able transmission gear, and will display that
gear limit in the instrument cluster as 1, 2,
3, etc. Refer to "Electronic Range Select
(ERS) Operation" in this section for further
information. Some models will display both
the selected gear limit, and the actual
current gear, while in ERS mode.
136
Electronic Transmission Gear Selector
Transmission Limp Home Mode
Transmission function is monitored electron-
ically 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
may operate only in certain gears, or may not
shift at all. Vehicle performance may be
severely degraded and the engine may stall.
In some situations, the transmission may not
re-engage if the engine is turned off and
restarted. The Malfunction Indicator Light
(MIL) may be illuminated. A message in the
instrument cluster will inform the driver of
the more serious conditions, and indicate
what actions may be necessary.
In the event of a momentary problem, the
transmission can be reset to regain all
forward gears by performing the following
steps:
NOTE:
In cases where the instrument cluster
message indicates the transmission may not
re-engage after engine shutdown, perform
this procedure only in a desired location
(preferably, at an authorized dealer).
1. Stop the vehicle.
2. Shift the transmission into PARK, if
possible. If not, shift the transmission to
NEUTRAL.
3. Push and hold the ignition switch until
the engine turns OFF.
4. Wait approximately 30 seconds.
5. Restart the engine.
6. Shift into the desired gear range. If the
problem is no longer detected, the trans-
mission will return to normal operation.