Buick 2010 Enclave - Manual (Page 312)

10-10 Vehicle Care
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer system
that indicates when to change the
engine oil and filter. This is based
on engine revolutions and engine
temperature, and not on mileage.
Based on driving conditions, the
mileage at which an oil change is
indicated can vary considerably.
For the oil life system to work
properly, the system must be reset
every time the oil is changed.
When the system has calculated
that oil life has been diminished,
it indicates that an oil change is
necessary. A “Change Engine Oil
Soon” message comes on. Change
the oil as soon as possible within
the next 600 miles (1 000 km). It is
possible that, if driving under the
best conditions, the oil life system
might not indicate that an oil change
is necessary for over a year.
However, the engine oil and filter
must be changed at least once a
year and at this time the system
must be reset. Your dealer/retailer
has trained service people who will
perform this work using genuine
parts and reset the system. It is also
important to check the oil regularly
and keep it at the proper level.
If the system is ever reset
accidentally, the oil must be
changed at 3,000 miles (5 000 km)
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
The Engine Oil Life System
calculates when to change the
engine oil and filter based on
vehicle use. Whenever the oil is
changed, reset the system so it can
calculate when the next oil change
is required. If a situation occurs
where the oil is changed prior to a
“Change Engine Oil Soon” message
being turned on, reset the system.
To reset the Engine Oil Life System:
1. Turn the ignition to ON/RUN,
with the engine off.
2. Press the vehicle information
button until “Oil Life Remaining”
displays.
3. Press and hold the set/reset
button until “100%” is displayed.
Three chimes sound and the
“Change Engine Oil Soon”
message goes off.
4. Turn the key to LOCK/OFF.
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.