Minimum Fluid Operating Temperatures
Sump Fluid Temperature
CHECK
TRANS Light
Operation
–32°C (–25°F) to –7°C (19°F)
OFF
Neutral, Reverse, Second
–7°C (19°F)
OFF
Full operation in all ranges
NOTE:
When sump temperature is below 10°C (50°F) and transmission
fl
uid is C4 (
not DEXRON
®
or TranSynd™
), follow these procedures
when making directional shift changes:
•
To shift from forward to reverse, select
N
(Neutral) and then
R
(Reverse).
•
To shift from reverse to forward, select
N
(Neutral) and then
D
(Drive) or other forward range.
Failure to follow these procedures may cause illumination of the
CHECK TRANS
light and the transmission will be restricted to
N
(Neutral).
Transmission operation at cold ambient temperatures may require preheating or
the use of a lower viscosity transmission
fl
uid. Refer to RECOMMENDED
AUTOMATIC TRANSMISSION FLUID AND VISCOSITY GRADE in the Care
And Maintenance section.
DRIVING ON SNOW OR ICE
WARNING:
Using the retarder on wet or slippery roads may cause loss
of traction on the drive wheels—your vehicle may slide out of control.
To help avoid injury or property damage, turn the retarder enable to
OFF when driving on wet or slippery roads.
NOTE:
The retarder is automatically disabled whenever the vehicle
ABS is active. However, in case the anti-lock brake system (ABS)
malfunctions, it is recommended that the retarder enable switch, if
present, be disabled.
If possible, reduce vehicle speed and select a lower range before losing traction.
Select the range that will not exceed the speed expected to be maintained.
Accelerate or decelerate very gradually to prevent the loss of traction. It is very
important to decelerate gradually when a lower range is selected. It is important
that you reach the selected lower range before attempting to accelerate. This will
avoid an unexpected downshift during acceleration.
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