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Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
256 Vehicle Care
include engine revolutions, engine
temperature, and miles driven.
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 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. To reset the
system:
1. Display the REMAINING OIL
LIFE on the DIC. See Driver
Information Center (DIC) (Base
and Midlevel) 0 129 or
Driver Information Center (DIC)
(Uplevel) 0 133.
2. Press and hold the
thumbwheel on the DIC while
the Oil Life display is active.
3. Confirm yes, and the oil life will
change to 100%.
The oil life system can also be reset
as follows:
1. Place the ignition in Service
Mode. See Ignition Positions
0 178.
2. Display REMAINING OIL LIFE
on the DIC menu. See Driver
Information Center (DIC) (Base
and Midlevel) 0 129 or
Driver Information Center (DIC)
(Uplevel) 0 133.
3. Fully press and release the
accelerator pedal three times
within five seconds.
4. If the display changes to 100%,
the system is reset.
If the CHANGE ENGINE OIL SOON
message comes back on when the
vehicle is started, the engine oil life
system has not been reset. Repeat
the procedure.
Automatic Transmission
Fluid
It is not necessary to check the
transmission fluid level.
A transmission fluid leak is the only
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