1999 Buick Riviera Owner's Manual - Page 264

yellowblue To remove the air cleaner assembly, see Steps 1 through 3 earlier in this section. See "Air Cleaner" in the Index. The passenger's side high-beam headlamp access area is next to the radiator pressure cap. The passenger's side low-beam headlamp access area is to the right and slightly behind the high beam area. The driver's side high-beam headlamp access area is located near the air cleaner. 6-32