GMC CHEVROLET Silverado 6500HD 2019 Owner's Manual page 32

Interference from radio-frequency
identification (RFID) tags may
prevent the key from starting the
vehicle. Keep RFID tags away from
the key when starting the vehicle.
The key is used for the ignition, all
door locks, the glove box, and the
floor console storage bin,
if equipped. The key has a
bar-coded key tag that the dealer or
qualified locksmith can use to make
new keys. Store this information in a
safe place, not in the vehicle.
See your dealer if a replacement
key or additional key is needed. If it
becomes difficult to turn a key,
inspect the key blade for debris.
Periodically clean with a brush
or pick.
Programming Keys
Follow these procedures to program
up to eight keys to the vehicle.
Programming with Two
Recognized Keys
To program a new key:
1. Insert the original, already
programmed key in the ignition
and turn the ignition on.
2. Turn the ignition off, and
remove the key.
3. Quickly, within five seconds,
insert the second original
already programmed key in the
ignition and turn the ignition on.
4. Turn the ignition off, and
remove the key.
5. Insert the key to be
programmed and turn the
ignition on within five seconds.
Keys, Doors, and Windows
6. The security light will turn off
once the key has been
programmed.
7. Repeat Steps 1 5 if additional
keys are to be programmed.
If a key is lost or damaged, see your
dealer to have a new key made.
Programming without
Recognized Keys
Program a new key to the vehicle
when a recognized key is not
available.
If two currently recognized keys are
not available, follow this procedure
to program the first key.
This procedure will take
approximately 30 minutes to
complete for the first key. The
vehicle must be off and all of the
keys you wish to program must be
with you.
1. Insert the new vehicle key into
the ignition.
2. Turn the ignition on. The
security light will come on.
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