Subaru 2003 Impreza - Manual (Page 93)

IMPREZA(NA) A1850BE-A (ENGLISH)
Keys and doors
2-2
Keys
1) Master key
2) Submaster key 3) Valet key
4) Key number plate
Three types of keys are provided for your vehicle:
Master key, submaster key and valet key.
The master key and submaster key fit all locks on
your vehicle.
D Ignition switch
D Doors
D Trunk (sedan) or Rear gate (wagon)
D Glove box
The valet key fits only the ignition switch and driver’s
door lock. You can keep the trunk and glove box
locked when you leave your vehicle and valet key at
a parking facility.
J Key number
The key number is stamped on the metal plate
attached to the key set. Write down the key number
and keep it in another safe place, not in the vehicle.
This number is needed to make a replacement key if
you lose your key or lock it inside the vehicle.