See also:

Warranty
OnStar equipment may be warranted as part of the new-vehicle limited warranty. The manufacturer of the vehicle furnishes detailed warranty information. ...

Lumbar Adjustment
Manual Lumbar If equipped, increase or decrease manual lumbar support by turning the knob forward or rearward. See Lumbar Adjustment on page 3‑4 for more information. Power Lumbar To ...

Power Reclining Seatbacks
To adjust a power seatback, if equipped: • Tilt the top of the control rearward to recline. • Tilt the top of the control forward to raise. ...