See also:

Automatic door locks
-All doors lock automatically when the vehicle speed reaches 15 MPH (24 km/h). - All doors unlock automatically when the ignition switch is placed in the OFF position. The automatic lock and unl ...

Trailer brakes
If your trailer is equipped with a braking system, make sure it conforms to federal and/or local regulations and that it is properly installed. WARNING Never connect a trailer brake system directl ...

Advanced Safety Systems, A Variety of Models and Packages
The 2009 Frontier includes a long list of safety equipment, including Zone Body construction with front and rear crumple zones, Nissan Advanced Air Bag System (which includes dual-stage front supp ...