Automatic Transmission; Fluid; Automatic Transmission Fluid - Chevrolet 2011 Impala Owner's Manual

10-12 Vehicle Care
See Engine Oil Messages on
page 5 33. Change the oil as
soon as possible within the next
1 000 km (600 mi). It is possible
that, if driving under the best
conditions, the oil life system
might indicate that an oil change
is not necessary for up to a year.
The engine oil and filter must be
changed at least once a year and,
at this time, the system must be
reset. Your dealer has trained
service people who will perform
this work and reset the system.
It is also important to check the
oil regularly over the course of
an oil drain interval and keep
it at the proper level.
If the system is ever reset
accidentally, the oil must be
changed at 5 000 km (3,000 mi)
since the last oil change.
Remember to reset the oil life
system whenever the oil is changed.
How to Reset the Engine Oil
Life System
Reset the system whenever the
engine oil is changed so that the
system can calculate the next
engine oil change. Always reset
the engine oil life to 100% after
every oil change. It will not reset
itself. To reset the system:
1. Display OIL LIFE REMAINING
on the DIC.
2. Press and hold the SET/RESET
button on the DIC for more than
five seconds. The oil life will
change to 100%.
If the CHANGE ENGINE OIL SOON
message comes back on when the
vehicle is started, the engine oil life
system has not reset. Repeat the
procedure.

Automatic Transmission

Fluid

When to Check and Change

Automatic Transmission Fluid

A good time to check the automatic
transmission fluid level is when the
engine oil is changed.
Change the fluid and filter at
the intervals listed in Scheduled
Maintenance on page 11 2, and be
sure to use the transmission fluid
listed in Recommended Fluids and
Lubricants on page 11 6.