2020 GMC SIERRA headlamp

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Page 168 of 502

GMC SIERRA 2020  Owners Manual GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 4/4/19
Lighting 167
Keep this area of the windshield
clear of debris to allow for best
system perfor

Page 169 of 502

GMC SIERRA 2020  Owners Manual GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 4/4/19
168 Lighting
When the high-beam headlamps are
on, this indicator light on the
instrument clus

Page 170 of 502

GMC SIERRA 2020  Owners Manual GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 4/4/19
Lighting 169
There is a light sensor on top of the
instrument panel. Do not cover the
sensor,

Page 172 of 502

GMC SIERRA 2020  Owners Manual GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 4/4/19
Lighting 171
When the headlamps are changed
to high beam, the fog lamps also go
off. When the

Page 175 of 502

GMC SIERRA 2020  Owners Manual GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 4/4/19
174 Lighting
The exterior lamps and dome lamp
remain on for a set amount of time,
then automa

Page 194 of 502

GMC SIERRA 2020  Owners Manual GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 4/4/19
Driving and Operating 193
Warning (Continued)
cause a rollover. You could be
injured or kille

Page 200 of 502

GMC SIERRA 2020  Owners Manual GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 4/4/19
Driving and Operating 199
If it takes time for help to arrive,
when running the engine, push

Page 247 of 502

GMC SIERRA 2020  Owners Manual GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 4/4/19
246 Driving and Operating
used, ACC can be turned back on.
Disabling the TCS or StabiliTrak/