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transmission shift schedule and expand the range of
torque converter clutch engagement. This is done to
prevent transmission damage due to overheating.
During cold temperatures, transmission operation may
be modified depending on engine and transmission
temperature as well as vehicle speed. This feature im-
proves warm up time of the engine and transmission to
achieve maximum efficiency. Engagement of the torque
converter clutch is inhibited until the transmission fluid
is warm (refer to the “Note” under “Torque Converter
Clutch” in this section). During extremely cold tempera-
tures (-16°F [-27°C] or below), operation may briefly be
limited to only second gear (for four-speed transmission)
or third gear (for six-speed transmission). Normal opera-
tion 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 second gear (for four-speed transmission) or third gear
(for six-speed transmission) regardless of which forward
gear is selected. 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.
5
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3. Turn the ignition switch to the OFF position.
4. Wait approximately 10 seconds.
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.Overdrive Operation
The automatic transmission includes an electronically
controlled Overdrive (top gear). The transmission will
automatically shift into Overdrive if the following con-
ditions are present:
• The shift lever is in the DRIVE position.
• The transmission fluid has reached an adequate tem-
perature.
• The engine coolant has reached an adequate tempera-
ture.
• The vehicle speed is sufficiently high.
• The driver is not heavily pressing the accelerator.
Torque Converter Clutch
A feature designed to improve fuel economy has been
included in the automatic transmission on your vehicle.
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A clutch within the torque converter engages automati-
cally at calibrated speeds. This may result in a slightly
different feeling or response during normal operation in
the upper gears. When the vehicle speed drops or during
some accelerations, the clutch automatically disengages.
NOTE:The torque converter clutch will not engage until
the transmission fluid and engine coolant are warm
(usually after 1 to 3 miles [2 to 5 km] of driving). Because
the engine speed is higher when the torque converter
clutch is not engaged, it may seem as if the transmission
is not shifting into Overdrive when cold. This is normal.
Using the AutoStick shift control, when the transmission
is sufficiently warm, will demonstrate that the transmis-
sion is able to shift into and out of Overdrive.
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 system
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 shift lever is in the AutoStick position (below
the DRIVE position), it can be moved from side to side.
This allows the driver to manually select the transmission
gear being used. Moving the shift lever to the left (-)
triggers a downshift and to the right (+) an upshift. The
current gear will be displayed in the instrument cluster.
In AutoStick mode, the transmission will shift up or
down when the driver moves the shift lever to the right
(+) or left (-), 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.5
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does not apply the throttle before this time expires, the
system will release brake pressure and the vehicle will
roll down the hill as normal.
The following conditions must be met in order for HSA to
activate:
•The feature must be enabled.
• The vehicle must be stopped.
• Park brake must be off.
• Driver door must be closed.
• The vehicle must be on a sufficient grade.
• The gear selection must match vehicle uphill direction
(i.e., vehicle facing uphill is in forward gear; vehicle
backing uphill is in REVERSE gear).
• HSA will work in REVERSE gear and all forward
gears. The system will not activate if the transmission is in PARK or NEUTRAL. For vehicles equipped with
a manual transmission if the clutch is pressed HSA will
remain active.
WARNING!
There may be situations where the Hill Start Assist
(HSA) will not activate and slight rolling may occur,
such as on minor hills or with a loaded vehicle, or
while pulling a trailer. HSA is not a substitute for
active driving involvement. It is always the driver ’s
responsibility to be attentive to distance to other
vehicles, people, and objects, and most importantly
brake operation to ensure safe operation of the ve-
hicle under all road conditions. Your complete atten-
tion is always required while driving to maintain
safe control of your vehicle. Failure to follow these
warnings can result in a collision or serious personal
injury.
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Cavity Cartridge FuseMini-FuseDescription
F163 50 Amp Red –Cabin Heater #2 – If Equipped
F164 –25 Amp Clear Powertrain Auto Shutdown
F165 –20 Amp Yellow Powertrain Shutdown
F166 –20 Amp Yellow Spare
F167 –30 Amp Green Powertrain Shutdown
F168 –10 Amp Red Air Conditioner Clutch
F169 40 Amp Green –
Emissions – Partial Zero Emissions Vehicle Motor
F170–15 Amp Blue Emissions – Partial Zero Emissions Vehicle Ac-
tuators
F172 –20 Amp Yellow Spare
F173 –25 Amp Clear Anti Lock Brake Valves
F174 –20 Amp Yellow Siren – If Equipped
F175 –30 Amp Green Spare
F176 –10 Amp Red Powertrain Control Modules
F177 –20 Amp Yellow All Wheel Drive Module – If Equipped7
MAINTAINING YOUR VEHICLE 605