Highway Hypnosis
Always be alert and pay attention to your surroundings while driving.
If you become tired or sleepy, find a safe place to park the vehicle and rest.
Other driving tips include:
• Keep the vehicle well ventilated.
• Keep the interior temperature cool.
• Keep your eyes moving — scan the road ahead and to the sides.
• Check the rearview mirror and vehicle instruments often.
See also:
Recommended Fuel
Use regular unleaded gasoline with a posted octane rating of 87 or higher. If
the octane rating is less than 87, an audible knocking noise, commonly referred
to as spark knock, might be heard when ...
Battery
The battery supplies power to start the engine and operate any additional electrical accessories.
• To avoid break-down or failure to start the vehicle, maintain a battery with full cranking power. ...
Engine Overheating
If the vehicle has the Duramax® Diesel engine, see the Duramax Diesel Supplement for more information.
The vehicle has several indicators to warn of engine overheating.
There is a coolant temperatu ...





