2011 GMC Sierra 1500 Hybrid Review
See also:
Owner Checks and Services
At Each Fuel Stop
• Check the engine oil level. See Engine Oil on page 10‑7.
Once a Month
• Check the tire inflation pressures. See Tire Pressure on page 10‑62.
• Inspect the tir ...
Engine Oil Additives/Engine Oil Flushes
Do not add anything to the oil. The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protection.
Engine ...
Manual Operation
The air delivery mode or fan speed can be manually adjusted.
(Fan Control): Press to increase or decrease the fan speed.
Pressing or
while in automatic control places the fan speed under manual ...





