Tow/Haul Mode Light
This light comes on when the Tow/Haul mode has been activated.
For more information, see Tow/Haul Mode on page 9‑26.
See also:
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, to produce a cleaner environment. This ligh ...
Fuel
For diesel engine vehicles, see “Fuel for Diesel Engines” in the Duramax Diesel Supplement.
For Vehicles with gasoline engines, please read this. ...
When to Inspect the Engine Air Cleaner/Filter
Inspect or replace the air cleaner/ filter at the scheduled maintenance intervals.
See Maintenance Schedule on page 11‑3 for more information. If driving in dusty/dirty
conditions, inspect t ...