1999 Honda Odyssey Owner's Manual - Page 77

Steering Wheel Controls, Keys and Locks Remote Audio Controls Keys KEY NUMBER PLATE MASTER KEYS (BLACK) VALET KEY (GRAY) The valet key works only in the ignition, the door locks and the tailgate. You can keep the glove box locked when you leave your vehicle and the valet key at a parking facility. You should have received a key number plate with your keys. You will need this key number if you ever have to get a lost key replaced. Keep the plate stored in a safe place. If you need to replace a key, use only Honda-approved key blanks. On EX model These buttons let you control some functions of the audio system without removing your hands from the wheel. Refer to page 179 for a complete explanation. Your vehicle comes with two master keys and a valet key. The master key fits all the locks on your vehicle: Ignition Doors Glove box Tailgate Instruments and Controls