Jeep Wrangler: Automatic Transmission — If Equipped / Fluid And Filter Changes
Under normal operating conditions, the fluid
installed at the factory will provide satisfactory
lubrication for the life of the vehicle.
Routine fluid and filter changes are not
required. However, change the fluid and filter if
the fluid becomes contaminated (with water,
etc.), or if the transmission is disassembled for
any reason.
The fluid level is preset at the factory and does
not require adjustment under normal operating
conditions. Routine fluid level checks are not
required; therefore the transmission has no
dipstick...
It is important to use the proper transmission
fluid to ensure optimum transmission
performance and life. Use only the
manufacturer specified transmission fluid...
Other information:
To reduce the potential for engine and
transmission overheating in high ambient
temperature conditions, take the following
actions:
City Driving — When stopped, shift the transmission
into NEUTRAL (N) and increase
engine idle speed.
Highway Driving — Reduce your speed...
HDC is intended for low speed off-road driving
while in 4WD Low. HDC maintains vehicle speed
while descending hills during various driving
situations. HDC controls vehicle speed by
actively controlling the brakes.
HDC has three states:
Off (feature is not enabled and will not
activate)...