GMC Sierra Owners Manuals

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Tailgating Alert
The red FCA display will stay continuously illuminated if the vehicle ahead remains much too close. ...

Checking Engine Oil
It is a good idea to check the engine oil level at each fuel fill. In order to get an accurate reading, the vehicle must be on level ground. The engine oil dipstick handle is a yellow loop. See Engine ...

Audio Output
Audio from the DVD player or auxiliary inputs can be heard through the following sources: • Wireless headphones • Vehicle speakers • Vehicle-wired headphone jacks on the RSA system, if the ve ...