Languages

The vehicle supports English, French (Canadian), and Spanish. The default language is English. To change the display language, see Vehicle Personalization on page 5‑33 for more information.

    See also:

    Lamp Messages
    TURN SIGNAL ON This message displays and a chime sounds if a turn signal is left on for 1.2 km (0.75 mile). Move the turn signal/multifunction lever to the off position. ...

    Lumbar Adjustment
    Eight-Way Power Seat Shown, Four-Way Similar A. Lumbar Switch If available, press and hold the front or rear of the switch (A) to increase or decrease lumbar support. Release the switch when the ...

    Vehicle Overview
    GM says the Sierra 1500 Hybrid's gasoline V-8 and electric motors team up for an overall mileage improvement compared with the regular Sierra. The Sierra Hybrid is only available as a rear- or fou ...