GMC Yukon Denali 2013 Owner's Manual page 32

2-2 Keys, Doors, and Windows
The key is used for the ignition and
all door locks.
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 the vehicle has an ignition and it
becomes difficult to turn the key,
inspect the key blade for debris.
Periodically clean with a brush
or pick.
With an active OnStar subscription,
an OnStar Advisor may remotely
unlock the vehicle. See OnStar
Overview on page 14 1.
Remote Keyless Entry
(RKE) System
See Radio Frequency Statement on
page 13 21 for information
regarding Part 15 of the Federal
Communications Commission (FCC)
rules and Industry Canada
Standards RSS-GEN/210/220/310.
If there is a decrease in the RKE
operating range:
Check the distance. The
transmitter may be too far from
the vehicle.
Check the location. Other
vehicles or objects may be
blocking the signal.
Check the transmitter's battery.
See Battery Replacement later
in this section.
If the transmitter is still not
working correctly, see your
dealer or a qualified technician
for service.
Remote Keyless Entry
(RKE) System Operation
The Remote Keyless Entry (RKE)
transmitter functions work up to
60 m (195 ft) away from the vehicle.
There are other conditions which
can affect the performance of the
transmitter. See Remote Keyless
Entry (RKE) System on page 2 2.