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STARTING AND OPERATING 99
If the transmission temperature exceeds normal operating
limits, the transmission controller may modify the
transmission shift schedule, reduce engine torque, and/or
expand the range of torque converter clutch engagement.
This is done to prevent transmission damage due to
overheating.
If the transmission becomes extremely hot, the
Transmission Temperature Warning Light may illuminate,
and the transmission may operate differently until the
transmission cools down.
During cold temperatures, transmission operation may be
modified depending on engine and/or transmission
temperature as well as vehicle speed. This feature
improves warm-up time of the engine and transmission to
achieve maximum efficiency. Engagement of the torque
converter clutch is inhibited until the engine and/or
transmission is warm. Normal operation will resume once
the temperature(s) have risen to a suitable level.
AUTOSTICK
AutoStick is a driver-interactive transmission feature
providing manual shift control, giving you more control of
the vehicle. AutoStick allows you to maximize engine
braking, eliminate undesirable upshifts and downshifts,
and improve overall vehicle performance. This feature can
also provide you with more control during passing, city
driving, cold slippery conditions, mountain driving, trailer
towing, and many other situations.
Operation
When the gear selector is in the AutoStick position (beside
the DRIVE (D) position), it can be moved forward and
rearward. This allows the driver to manually select the
transmission gear being used. Moving the gear selector
forward (-) triggers a downshift and rearward (+) an
upshift. The current gear is displayed in the instrument
cluster.
In AutoStick mode, the transmission will shift up or down
when the driver moves the gear selector rearward (+) or
forward (-), unless an engine lugging or overspeed
condition would result. It will remain in the selected gear
until another upshift or downshift is chosen, except as
described below.
8-speed transmissions will automatically upshift when
necessary to prevent engine overspeed.
The transmission will automatically downshift as the
vehicle slows (to prevent engine lugging) and will
display the current gear.
The transmission will automatically downshift to
FIRST gear when coming to a stop. After a stop, the
driver should manually upshift (+) the transmission as
the vehicle is accelerated.
You can start out, from a stop, in FIRST or
SECOND gear. Tapping (+) (at a stop) will allow starting
in SECOND gear. Starting out in SECOND gear can be
helpful in snowy or icy conditions.
If a requested downshift would cause the engine to
overspeed, that shift will not occur.
The system will ignore attempts to upshift at too low of
a vehicle speed.
Transmission shifting will be more noticeable when
AutoStick is enabled.
The system may revert to automatic shift mode if a
fault or overheat condition is detected.
NOTE:
When Selec-Speed or Hill Descent Control is enabled,
AutoStick is not active.
To disengage AutoStick, return the gear selector to the
DRIVE position. You can shift in or out of the AutoStick
position at any time without taking your foot off the
accelerator pedal.
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 may
operate only in a fixed gear, or may remain in NEUTRAL
(N). The Malfunction Indicator Light (MIL) may be
illuminated. Limp Home Mode may allow the vehicle to be
driven to an authorized dealer for service without
damaging the transmission.
WARNING!
Do not downshift for additional engine braking on a
slippery surface. The drive wheels could lose their grip
and the vehicle could skid, causing a collision or
personal injury.
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23_MP_OM_EN_USC_t.book Page 99
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