GMC 2012 Terrain Owner's Manual page 340

10-58 Vehicle Care
There are two minutes to match
the first tire/wheel position, and
five minutes overall to match all
four tire/wheel positions. If it takes
longer, the matching process stops
and must be restarted.
The TPMS sensor matching
process is:
1. Set the parking brake.
2. Turn the ignition to ON/RUN with
the engine off.
3. Use the MENU button to
select the Vehicle Information
Menu in the Driver Information
Center (DIC). Use the arrow
keys to scroll to the Tire
Pressure screen.
4. Press the SET/CLR button to
begin the sensor matching
process.
A message requesting
acceptance of the process
should display.
5. Press the SET/CLR button again
to confirm the selection.
The horn sounds twice to
signal the receiver is in relearn
mode and the TIRE LEARNING
ACTIVE message displays on
the DIC screen.
6. Start with the driver side
front tire.
7. Place the relearn tool against
the tire sidewall, near the valve
stem. Then press the button
to activate the TPMS sensor.
A horn chirp confirms that the
sensor identification code has
been matched to this tire and
wheel position.
8. Proceed to the passenger
side front tire, and repeat the
procedure in Step 7.
9. Proceed to the passenger
side rear tire, and repeat the
procedure in Step 7.
10. Proceed to the driver side rear
tire, and repeat the procedure
in Step 7. The horn sounds two
times to indicate the sensor
identification code has been
matched to the driver side rear
tire, and the TPMS sensor
matching process is no longer
active. The TIRE LEARNING
ACTIVE message on the DIC
display screen goes off.
11. Turn the ignition to LOCK/OFF.
12. Set all four tires to the
recommended air pressure
level as indicated on the Tire
and Loading Information label.