Buick 2004 Park Avenue - Manual (Page 295)

Bulb Replacement
For the type of bulb to use, see Replacement Bulbs on
page 5-60.
For any bulb changing procedure not listed in this
section, contact your dealer.
Halogen Bulbs
{ CAUTION:
Halogen bulbs have pressurized gas inside and
can burst if you drop or scratch the bulb. You or
others could be injured. Be sure to read and
follow the instructions on the bulb package.
Headlamps
Each headlamp is attached by thumb screws.
5-51