Vehicle Checks; Doing Your Own Service Work - GMC HUMMER EV 2022 Manual

90 Vehicle Care
special handling may apply. See
www.dtsc.ca.gov/hazardouswaste/
perchlorate.

Vehicle Checks

Doing Your Own Service Work

{
Warning
Never try to do your own service on high
voltage battery components. You can be
injured and the vehicle can be damaged if
you try to do your own service work.
Service and repair of these high voltage
battery components should only be
performed by a trained dealer technician
with the proper knowledge and tools.
Exposure to high voltage can cause shock,
burns, and even death. The high voltage
components in the vehicle can only be
serviced by technicians with special
training.
High voltage components are identified
by labels. Do not remove, open, take
apart, or modify these components. High
Warning (Continued)
voltage cable or wiring has orange
covering. Do not probe, tamper with, cut,
or modify high voltage cable or wiring.
Unexpected wheel motion and/or
direction when one or more wheels are
off the ground for service work may
result in injury. The vehicle may:
Allow the wheels to rotate
.
unexpectedly in either direction
regardless of mode selection.
Allow the wheels to rotate in reaction
.
to attempts to rotate the tire(s)
manually.
Resist attempts to rotate the wheels
.
manually.
Before lifting the vehicle to do your own
service work, turn the vehicle off or place
the vehicle in the Service Mode. To place
the vehicle in Service Mode, with the
vehicle off and the brake pedal not
(Continued)
applied, press and hold POWER for more
than five seconds.
{
Warning
{
Warning
It can be dangerous to work on your
vehicle if you do not have the proper
knowledge, service manual, tools,
or parts. Always follow owner's manual
procedures and consult the service
manual for your vehicle before doing any
service work.
If doing some of your own service work, use
the proper service manual. It tells you much
more about how to service the vehicle than
this manual can. To order the proper service
manual, see the owner's manual.
This vehicle has an airbag system. Before
attempting to do your own service work,
see Servicing the Airbag-Equipped Vehicle
0 34.
Keep a record with all parts receipts and list
the mileage and the date of any service
work performed. See the owner's manual.