Automatic Transmission Fluid; Engine Air Filter Life System - Chevrolet Tahoe 2022 Owner's Manual

312 Vehicle Care
The oil life system can also be reset as
follows:
1. Display the oil life percentage on the
DIC. See Driver Information Center (DIC)
(Uplevel) 0 118 or
Driver Information Center (DIC) (Base
Level) 0 116.
2. Fully press the accelerator pedal slowly
three times within five seconds.
3. If the display changes to 100%, the
system is reset.
If the vehicle has a CHANGE ENGINE OIL
SOON message and it comes back on when
the vehicle is started and/or the oil
life percentage is near 0%, the engine oil
life system has not been reset. Repeat the
procedure.

Automatic Transmission Fluid

How to Check Automatic Transmission
Fluid
It is not necessary to check the transmission
fluid level. A transmission fluid leak is the
only reason for fluid loss. If a leak occurs,
take the vehicle to your dealer and have it
repaired as soon as possible.
There is a special procedure for checking and
changing the transmission fluid. Because this
procedure is difficult, this should be done at
your dealer. Contact your dealer for
additional information.
Caution
Use of the incorrect automatic
transmission fluid may damage the
vehicle, and the damage may not be
covered by the vehicle warranty. Always
use the correct automatic transmission
fluid. See Recommended Fluids and
Lubricants 0 392.
Change the fluid and filter at the intervals
listed in Maintenance Schedule 0 384, and
be sure to use the fluid listed in
Recommended Fluids and Lubricants 0 392.

Engine Air Filter Life System

If equipped, this feature provides the engine
air filter s remaining life and best timing for
a change. The timing to change an engine
air filter depends on driving and
environmental conditions.
When to Change the Engine Air Filter
When the Driver Information Center (DIC)
displays a message to replace the engine air
filter at the next oil change, follow this
timing.
When the DIC displays a message to replace
the engine air filter soon, replace the engine
air filter at the earliest convenience.
The system must be reset after the engine
air filter is changed.
If the DIC displays a message to check the
engine air filter system, see your dealer.
How to Reset the Engine Air Filter Life
System
To reset:
1. Place the vehicle in P (Park).
2. Display the Air Filter Life on the DIC. See
Driver Information Center (DIC) (Uplevel)
0 118 or
Driver Information Center (DIC) (Base
Level) 0 116.
3. Press the thumbwheel on the steering
wheel to move to the Reset/Disable
display area. Select Reset then press the
thumbwheel for several seconds.