Tachometer
The tachometer displays the engine speed in revolutions per minute (rpm).
See also:
Brakes
This vehicle has disc brakes.
Disc brake pads have built-in wear indicators that make a high-pitched warning sound when the brake pads are worn and new pads are needed.
The sound can come and go or ...
Tire Rotation
Tires should be rotated every 12 000 km (7,500 mi). See Maintenance Schedule on page 11‑3.
Tires are rotated to achieve a uniform wear for all tires. The first rotation is the most important.
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Fuel
For diesel engine vehicles, see “Fuel for Diesel Engines” in the Duramax Diesel Supplement.
For Vehicles with gasoline engines, please read this. ...