Conversions And Add-Ons; Add-On Electrical Equipment - Cadillac Escalade 2021 Manual

352 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 (Check Engine Light) 0 118.
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.
Warning
Certain mobile radio equipment,
like amplifiers and antennas used
for two-way communication, can
interfere with some vehicle systems.
Always ensure this equipment is
supplied with proper local
grounding. Follow all of the
instructions that came with the
equipment and see your GM dealer
for additional mobile radio
installation instructions.
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 74 and
Adding Equipment to the
Airbag-Equipped Vehicle 0 74.