2021 GMC SIERRA manual transmission

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Page 5 of 20

GMC SIERRA 2021  Get To Know Guide 5
STARTING THE VEHICLE
 With the vehicle in Park or Neutral, rotate the key clockwise to the Start position. 
TURNING OFF THE VEHICLE
 Shift to Park. 
 Push the key all the way in (1) and then rotate

Page 13 of 20

GMC SIERRA 2021  Get To Know Guide 13
TRACTION SELECT MODES
The Traction Select (Driver Mode) settings automatically adjust  various vehicle con-
trol systems based on driving preferences, 
weather and road conditions. The modes 
are d