Starting And Stopping The Vehicle - GMC Hummer EV 2023 Owner's Manual

GMC Hummer EV Owner Manual (GMNA-Localizing-MidEast-16569278) -
2023 - CRC - 1/25/23
182 Driving and Operating
Service Mode
This power mode is available for service and
diagnostics, and to verify the proper
operation of the service vehicle soon light as
may be required for emission inspection
purposes. With the vehicle off, and the
brake pedal not applied, pressing and
holding POWER for more than
five seconds will place the vehicle in Service
Mode. The instruments and audio systems
will operate as they do in ON/RUN, but the
vehicle will not be able to be driven. The
propulsion system will not start in Service
Mode. Press POWER again to turn the
vehicle off.
Caution
Placing the vehicle in Service Mode will
use the 12-volt battery. Do not use
Service Mode for an extended period,
or the vehicle may not start.
STOPPING THE VEHICLE/OFF : To turn the
vehicle off, apply the brakes, press the
button on top of the shift lever to shift to
P (Park) and press POWER .
Alternatively, apply the brakes and press
POWER . The electric drive unit will shift
to P (Park) then shut off automatically.
Retained Accessory Power (RAP) will remain
active until the driver door is opened.
If the vehicle must be shut off in an
emergency:
1. Brake using a firm and steady pressure.
Do not pump the brakes repeatedly. This
may deplete power assist, requiring
increased brake pedal force.
2. Shift the vehicle to N (Neutral). This can
be done while the vehicle is moving.
After shifting to N (Neutral), firmly apply
the brakes and steer the vehicle to a
safe location.
3. Come to a complete stop, shift to
P (Park), and turn the vehicle off by
pressing POWER .
4. Set the parking brake.
Warning
Turning off the vehicle while moving may
disable the airbags. While driving, only
shut the propulsion system off in an
emergency.
If the vehicle cannot be pulled over, and
must be shut off while driving, press and
hold POWER for longer than two seconds,
or press twice in five seconds.

Starting and Stopping the Vehicle

Starting Procedure
Press the P (Park) button on the shift lever,
or move the shift lever into N (Neutral). The
propulsion system will not start in any
other position.
Caution
Do not try to shift to P (Park) if the
vehicle is moving or the electric drive unit
could be damaged. Shift to P (Park) only
when the vehicle is stopped.
Caution
If you add electrical parts or accessories,
you could change the way the vehicle
operates. Any resulting damage would
not be covered by the vehicle warranty.
The remote key or digital key must be in
the vehicle. Press the brake pedal, then
press and release POWER .