Oldsmobile 1999 Alero - Manual (Page 252)

yellow blue
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Bulb Replacement
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
For the type of bulb, see “Replacement Bulbs” in
the Index.