Conversions And Add-Ons; Add-On Electrical Equipment - GMC Chevrolet Express 2022 Owner's Manual

164 Driving and Operating

Conversions and Add-Ons

Add-On Electrical Equipment

Warning
The Data Link Connector (DLC) is used for
vehicle service and Emission Inspection/
Maintenance testing. See Malfunction
Indicator Lamp 0 75. A device connected
to the DLC such as an aftermarket
fleet or driver-behavior tracking device
may interfere with vehicle systems. This
could affect vehicle operation and cause a
crash. Such devices may also access
information stored in the vehicle s
systems.
Caution
Some electrical equipment can damage
the vehicle or cause components to not
work and would not be covered by the
vehicle warranty. Always check with your
dealer before adding electrical equipment.
Add-on equipment can drain the vehicle's
12-volt battery, even if the vehicle is not
operating.
The vehicle has an airbag system. Before
attempting to add anything electrical to the
vehicle, see Servicing the Airbag-Equipped
Vehicle 0 43 and
Adding Equipment to the Airbag-Equipped
Vehicle 0 43.