1998 Nissan Frontier Owner's Manual - Page 67

KEY DOOR LOCKS WARNING ● Always have the doors locked while driving. Along with the use of seat belts, this provides greater safety in the event of an accident by helping to prevent persons from being thrown from the vehicle. This also helps keep children and others from unintentionally opening the doors, and will help keep out intruders. ● Before opening the door, always look for and avoid oncoming traffic. APD1025 A key number is supplied with your key. Record the key number and keep it in a safe place (such as your wallet), NOT IN THE VEHICLE. If you lose your keys, see an authorized NISSAN dealer for duplicates by using the key number. NISSAN does not record key numbers so it is very important to keep track of your key number plate. A key number is only necessary when you have lost all keys and do not have one to duplicate from. If you still have a key, this key can be duplicated by an authorized NISSAN dealer or locksmith. ● Do not leave children unattended in a locked vehicle. They could unknowingly activate switches or controls. Unattended children could become involved in serious accidents. APD1033 Locking doors with key To lock the door, turn the key towards the front of the vehicle. To unlock, turn it towards the rear. On power door lock equipped models, locking the driver's door simultaneously locks the passenger's door. 3-2 Pre-driving checks and adjustments