STARTING AND OPERATING
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information. Some models will display both
the selected gear limit, and the actual
current gear, while in ERS mode.
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.
NOTE:
Even if the transmission can be reset, we
recommend that you visit an authorized
dealer at your earliest possible convenience.
An authorized dealer has diagnostic equip
-
ment to assess the condition of your trans
-
mission.
If the transmission cannot be reset, autho
-
rized dealer service is required.
Electronic Range Select (ERS) Operation —
Eight-Speed Transmission
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 transmis
-
sion gear limit to 4 (fourth gear), the trans
-
mission will not shift above fourth gear
(except to prevent engine overspeed), but
will shift through the lower gears normally.
You can switch between DRIVE and ERS
mode at any vehicle speed. When the trans
-
mission gear selector is in DRIVE, the trans
-
mission will operate automatically, shifting
between all available gears. Tapping the
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Summary of Contents for 2500 2019
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