2012 Acura MDX Owner's Manual - Page 147

Door Locks UNLOCK LOCK To change the ''KEY AND REMOTE UNLOCK MODE'' setting, see page 119. When the vehicle speed reaches about 10 mph (about 16 km/h) or more, all the doors lock automatically. To change the ''AUTO DOOR LOCK'' setting, see page 116. LOCK UNLOCK To lock all doors and the tailgate, press the bottom of the master door lock switch on either front door, pull the lock tab above the driver's door handle, or use the key on the outside lock on the driver's door. Pressing the top of either master door lock switch will unlock all doors and the tailgate. The lock tab on any passenger's door locks and unlocks that door. All doors and the tailgate can be locked from the outside by using the key in the driver's door lock. To unlock only the driver's door, insert the key, turn the key, and release it. The remaining doors and the tailgate unlock when you turn the key a second time within a few seconds. When you shift to P after driving, the driver's door unlocks. To change the ''AUTO DOOR UNLOCK'' setting, see page 117. 140