2010 Nissan Altima Owner's Manual - Page 59

Booster seat installation CAUTION Do not use the lap/shoulder belt in the Automatic Locking Retractor mode when using a booster seat with the seat belts. Refer to all Warnings and Cautions in the "Child Safety", "Child Restraint" and "Booster Seats" sections before installing a child restraint. Follow these steps to install a booster seat in the rear seat or in the front passenger seat: LRS0453 LRS0464 ● Make sure the child's head will be properly supported by the booster seat or vehicle seat. The seatback must be at or above the center of the child's ears. For example, if a low back booster seat 1 is chosen, the vehicle seatback must be at or above the center of the child's ears. If the seatback is lower than the center of the child's ears, a high back booster seat 2 should be used. ● If the booster seat is compatible with your vehicle, place the child in the booster seat and check the various adjustments to be sure the booster seat is compatible with the child. Always follow all recommended procedures. All U.S. states and Canadian provinces or territories require that infants and small children be restrained in an approved child restraint at all times while the vehicle is being operated. The instructions in this section apply to booster seat installation in the rear seats or the front passenger seat. 1-40 Safety-Seats, seat belts and supplemental restraint system