2010 GMC Sierra 1500 Crew Cab Owner's Manual - Page 131

If the On Indicator is Lit for a Child Restraint If a child restraint has been installed and the on indicator is lit: 1. Turn the vehicle off. 2. Remove the child restraint from the vehicle. 3. Remove any additional items from the seat such as blankets, cushions, seat covers, seat heaters, or seat massagers. 4. Reinstall the child restraint following the directions provided by the child restraint manufacturer and refer to Securing a Child Restraint in the Right Front Seat Position With Passenger Sensing System in the Index. 5. If, after reinstalling the child restraint and restarting the vehicle, the on indicator is still lit, turn the vehicle off. Then slightly recline the vehicle seatback and adjust the seat cushion, if adjustable, to make sure that the vehicle seatback is not pushing the child restraint into the seat cushion. Also make sure the child restraint is not trapped under the vehicle head restraint. If this happens, adjust the head restraint. See Head Restraints on page 2‑3. 6. Restart the vehicle. The passenger sensing system may or may not turn off the airbag for a child in a child restraint depending upon the child's seating posture and body build. It is better to secure the child restraint in a rear seat. 2-89