Black plate (19,1)
GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12
Instruments and Controls
5-19
checked right away. If the vehicle
must be driven a short distance with
the light on, turn off accessories,
such as the radio and air
conditioner.
If the vehicle is a hybrid, see the
hybrid supplement for more
information.
Malfunction
Indicator Lamp
A computer system called OBD II
(On-Board Diagnostics-Second
Generation) monitors the operation
of the vehicle to ensure emissions
are at acceptable levels, helping to
maintain a clean environment. The
malfunction indicator lamp comes
on when the vehicle is placed in
ON/RUN, as a check to show it is
working. If it does not, have the
vehicle serviced by your dealer. See
Ignition Positions on page 9
‑
22
.
If the malfunction indicator lamp
comes on while the engine is
running, this indicates that the OBD
II system has detected a problem
and diagnosis and service might be
required.
Malfunctions often are indicated by
the system before any problem is
apparent. Being aware of the light
can prevent more serious damage
to the vehicle. This system also
assists the service technician in
correctly diagnosing any
malfunction.
Notice:
If the vehicle is
continually driven with this light
on, the emission controls might
not work as well, the vehicle fuel
economy might not be as good,
and the engine might not run as
smoothly. This could lead to
costly repairs that might not be
covered by the vehicle warranty.
Notice:
Modifications made to the
engine, transmission, exhaust,
intake, or fuel system of the
vehicle or the replacement of the
original tires with other than
those of the same Tire
Performance Criteria (TPC) can
affect the vehicle's emission
controls and can cause this light
to come on. Modifications to
these systems could lead to
costly repairs not covered by the
vehicle warranty. This could also
result in a failure to pass a
required Emission Inspection/
Maintenance test. See
Accessories and Modifications on
page 10
‑
3
.
Содержание 2013 GMC Yukon/Yukon XL
Страница 6: ...Black plate 6 1 GMC Yukon Yukon XL Owner Manual 2013 CRC 2nd edition 8 15 12 vi Introduction 2 NOTES...
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Страница 250: ...Black plate 56 1 GMC Yukon Yukon XL Owner Manual 2013 CRC 2nd edition 8 15 12 7 56 Infotainment System 2 NOTES...
Страница 264: ...Black plate 14 1 GMC Yukon Yukon XL Owner Manual 2013 CRC 2nd edition 8 15 12 8 14 Climate Controls 2 NOTES...
Страница 383: ...Black plate 35 1 GMC Yukon Yukon XL Owner Manual 2013 CRC 2nd edition 8 15 12 Vehicle Care 10 35...
Страница 449: ...Black plate 5 1 GMC Yukon Yukon XL Owner Manual 2013 CRC 2nd edition 8 15 12 Service and Maintenance 11 5...
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Страница 488: ...Black plate 22 1 GMC Yukon Yukon XL Owner Manual 2013 CRC 2nd edition 8 15 12 13 22 Customer Information 2 NOTES...
Страница 510: ...Black plate 14 1 GMC Yukon Yukon XL Owner Manual 2013 CRC 2nd edition 8 15 12 i 14 INDEX 2 NOTES...