GMC 2008 Sierra 1500 Pickup Owner's Manual page 193

If a low or high tire pressure condition is detected by the
system while driving, a message advising you to
check the pressure in a specific tire will appear in the
display. See Inflation - Tire Pressure on page 5-65 and
DIC Warnings and Messages on page 3-59 for more
information.
If the tire pressure display shows dashes instead of a
value, there may be a problem with your vehicle. If this
consistently occurs, see your dealer/retailer for service.
Engine Hours
Press the vehicle information button until ENGINE
HOURS displays. This display shows the total number
of hours the engine has run.
Relearn Remote Key
This display allows you to match Remote Keyless Entry
(RKE) transmitters to your vehicle. To match an RKE
transmitter to your vehicle:
1. Press the vehicle information button until PRESS
TO RELEARN REMOTE KEY displays.
2. Press the set/reset button until REMOTE KEY
LEARNING ACTIVE is displayed.
3. Press and hold the lock and unlock buttons on
the first transmitter at the same time for about
15 seconds.
On vehicles with memory recall seats, the first
transmitter learned will match driver 1 and
the second will match driver 2.
A chime will sound indicating that the transmitter
is matched.
4. To match additional transmitters at this time,
repeat Step 3.
Each vehicle can have a maximum of eight
transmitters matched to it.
5. To exit the programming mode, you must cycle
the key to LOCK/OFF.
Blank Display
This display shows no information.
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