Chevrolet 2003 Tahoe Owner's Manual page 151

Each time button 1 or 2 is pressed and released while
the vehicle is in PARK (P), a single chime will sound and
the memory position will be recalled.
If you use the unlock button on the remote keyless entry
transmitter to enter your vehicle, the preset driver's
seat, throttle and brake pedal, mirror positions and the
radio station presets will be recalled if programmed
to do so through the Driver Information Center (DIC).
The numbers on the back of the transmitters, 1 or 2,
correspond to the numbers on the memory controls.
The seat, throttle and brake pedals and mirror positions
can also be recalled when placing the key in the
ignition if programmed to do so through the Driver
Information Center (DIC).
To stop recall movement of the memory seat feature at
any time, press one of the memory buttons or power
seat controls.
Easy Exit Seat
The controls for this memory function are located on the
driver's door.
h
This button is used to program and recall the
desired driver's seat position when exiting/entering the
vehicle. The seat position, can be personalized for
both driver 1 and driver 2.
To store the seat exit position for driver 1 or 2, do the
following:
1. Select the desired driver number by pressing and
releasing the 1 or 2 button. The seat will move to
the stored memory position.
2. Adjust the seat to the desired exit position.
3. Press and hold the exit button of the memory
control for three seconds. A double chime will sound
to let you know that the position has been stored
for the identified driver (1 or 2).
To use the seat exit position, do one of the following:
Press the exit button on the memory control.
Or, if this feature is enabled (active) in the DIC,
then removing the key from the ignition will
cause the seat to move to the exit position.
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