Section 508 (Lighting System): Precaution

WARNING: This page is about a different car, the 2003 Toyota Matrix. However, it is still accessible from the selected car via links, so may be relevant.

PRECAUTION OF HEADLAMP BULB REPLACEMENT
1. If the adhered oil is left on the halogen lamp surface, the lamp's service life is shortened as it becomes hot when it is turned on.
2. Since the internal pressure of a halogen lamp is high, dropping, hitting or damaging the bulb may cause the glass to scatter. Therefore, handle it with great care.
3. When replacing bulb, do not remove the one until a new bulb is prepared.
  Because if it is left being removed for a long period of time, the lens may be covered with dirt or moisture.
4. For replacement, be sure to use a bulb of the same wattage.
5. Firmly reinstall the socket after bulb replacement. Otherwise, cloudy lens or invasion by water will be caused.