Brake System Warning Light - Cadillac XT6 Owner's Manual

Cadillac XT6 Owner Manual (GMNA-Localizing-MidEast-14574703) - 2021 -
CRC - 7/15/20
Check the following:
If fuel has been added to the vehicle
using the capless fuel funnel
adapter, make sure that it has been
removed. See Filling the Tank with
a Portable Gas Can under Filling the
Tank 0 267. The diagnostic system
can detect if the adapter has been
left installed in the vehicle, allowing
fuel to evaporate into the
atmosphere. A few driving trips with
the adapter removed may turn off
the light.
Poor fuel quality can cause
inefficient engine operation and
poor driveability, which may go
away once the engine is warmed up.
If this occurs, change the fuel
brand. It may require at least one
full tank of the proper fuel to turn
the light off. See Recommended Fuel
(3.6L V6 Engine) 0 266 or
Recommended Fuel (2.0L L4 Turbo
Engine) 0 266.
If the light remains on, see your
dealer.
Emissions Inspection and
Maintenance Programs
If the vehicle requires an Emissions
Inspection/Maintenance test, the test
equipment will likely connect to the
vehicle's Data Link Connector (DLC).
The DLC is under the instrument
panel to the left of the steering wheel.
Connecting devices that are not used
to perform an Emissions Inspection/
Maintenance test or to service the
vehicle may affect vehicle operation.
See Add-On Electrical Equipment 0 280.
See your dealer if assistance is needed.
The vehicle may not pass
inspection if:
The light is on when the engine is
running.
The light does not come on when
the ignition is in Service Mode.
INSTRUMENTS AND CONTROLS
Critical emission control systems
have not been completely
diagnosed. If this happens, the
vehicle would not be ready for
inspection and might require
several days of routine driving
before the system is ready for
inspection. This can happen if the
12-volt battery has recently been
replaced or run down, or if the
vehicle has been recently serviced.
See your dealer if the vehicle will not
pass or cannot be made ready for
the test.
Brake System Warning
Light
This light should come on briefly
when the vehicle is turned on. If it
does not come on then, have it fixed
so it will be ready to warn you if there
is a problem. If the light comes on
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