Automatic Dimming :: Folding Mirrors :: Exterior Mirrors :: Keys, Doors, and Windows :: GMC Sierra Owners Manuals :: GMC Sierra | GMCia.com

Automatic Dimming

GMC Sierra / GMC Sierra Owners Manuals / Keys, Doors, and Windows / Exterior Mirrors / Folding Mirrors / Automatic Dimming

If equipped with an automatic dimming mirror, the driver outside mirror adjusts for the glare of the headlamps behind you. See Automatic Dimming Rearview Mirror on page 2‑17.

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Immobilizer
See Radio Frequency Statement on page 13.21 for information regarding Part 15 of the Federal Communications Commission (FCC) rules and Industry Canada Standards RSS-GEN/210/220/310. ...

Tire Chains
WARNING If the vehicle has dual wheels or P265/65R18, P275/55R20, LT265/70R17, LT265/70R18, LT265/60R20, P285/50R20, P285/45R22 or 285/45R22 size tires, do not use tire chains. They can damage the ve ...

Engine Heater
The engine coolant heater can provide easier starting and better fuel economy during engine warm-up in cold weather conditions at or below 0°F (−18°C). Vehicles with an engine coolant heater s ...