2023 GMC SIERRA service indicator

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Page 4 of 430

GMC SIERRA 2023  Owners Manual GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16504257) - 2023 - CRC - 5/9/22
Introduction 3
A circle with a slash through it is a safety
symbol which means“Do

Page 71 of 430

GMC SIERRA 2023  Owners Manual GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16504257) - 2023 - CRC - 5/9/22
70 Seats and Restraints
off using the controls for those features.
If any of these s

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GMC SIERRA 2023  Owners Manual GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16504257) - 2023 - CRC - 5/9/22
72 Seats and Restraints
{Warning
If the airbag readiness light ever comes
on and sta

Page 74 of 430

GMC SIERRA 2023  Owners Manual GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16504257) - 2023 - CRC - 5/9/22
Seats and Restraints 73
that the child restraint locking feature is
engaged. Use the

Page 105 of 430

GMC SIERRA 2023  Owners Manual GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16504257) - 2023 - CRC - 5/9/22
104 Instruments and Controls
Instruments and Controls
Controls
Steering Wheel Adjust

Page 119 of 430

GMC SIERRA 2023  Owners Manual GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16504257) - 2023 - CRC - 5/9/22
118 Instruments and Controls
Voltmeter Gauge
Uplevel Shown, Base Level and MidlevelS

Page 120 of 430

GMC SIERRA 2023  Owners Manual GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16504257) - 2023 - CRC - 5/9/22
Instruments and Controls 119
When the vehicle is started, this light
flashes and a c

Page 121 of 430

GMC SIERRA 2023  Owners Manual GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16504257) - 2023 - CRC - 5/9/22
120 Instruments and Controls
will light either ON or OFF, or either the on
or off sy
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