GMC Yukon XL 2015 Owner's Manual page 47

2-14 Keys, Doors, and Windows
To start the vehicle:
1. Open the center console storage
area and the storage tray.
2. Place the transmitter in the
transmitter pocket/insert.
3. With the vehicle in P (Park) or
N (Neutral) press the brake
pedal and the ENGINE START/
STOP button.
Replace the transmitter battery
as soon as possible.
Battery Replacement
Replace the battery in the
transmitter soon if the REPLACE
BATTERY IN REMOTE KEY
message displays in the DIC.
Caution
When replacing the battery, do
not touch any of the circuitry on
the transmitter. Static from your
body could damage the
transmitter.
To replace the battery:
1. With the key removed, insert a
flat, thin object in center of the
transmitter to separate and
remove the back cover.