2013 Chevrolet Impala Owner Manual - Page 72

3-28 Seats and Restraints 2. Remove any additional material from the seat, such as blankets, cushions, seat covers, seat heaters, seat massagers, a laptop, or other electronic devices. 3. Place the seatback in the fully upright position. 4. Have the person sit upright in the seat, centered on the seat cushion, with legs comfortably extended. 5. Restart the vehicle and have the person remain in this position for two to three minutes after the on indicator is lit. in the Index for additional information about the importance of proper restraint use. A thick layer of additional material, such as a blanket or cushion, or aftermarket equipment such as seat covers, seat heaters, and seat massagers can affect how well the passenger sensing system operates. We recommend that you not use seat covers or other aftermarket equipment except when approved by GM for your specific vehicle. See Adding Equipment to the Airbag-Equipped Vehicle on page 3‑30 for more information about modifications that can affect how the system operates. A wet seat can affect the performance of the passenger sensing system. Here is how: . If the Off Indicator is Lit for an Adult-Size Occupant If a person of adult-size is sitting in the right front passenger seat, but the off indicator is lit, it could be because that person is not sitting properly in the seat. If this happens, use the following steps to allow the system to detect that person and enable the right front passenger frontal airbag: 1. Turn the vehicle off. Additional Factors Affecting System Operation Safety belts help keep the passenger in position on the seat during vehicle maneuvers and braking, which helps the passenger sensing system maintain the passenger airbag status. See "Safety Belts" and "Child Restraints" The passenger sensing system may turn off the passenger airbag when liquid is soaked into the seat. If this happens, the off