GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1999 🢒 Riviera 🢒 Body and Accessories 🢒 Instrument Panel, Gauges, and Console 🢒 Instrument Panel, Gages, and Console Component Views
Figure 1:

Engine Controls Components - Bank 2
Object Number: 186964 Size: MF
(1)Engine Oil Level Switch
(2)CKP Sensor A
(3)CKP Sensor B
(4)MAP Sensor (beneath dress cover)
(5)Engine Oil Pressure Switch
Figure 2:

Engine, Right Rear
Object Number: 342587 Size: LF
(1)Engine Oil Pressure Switch
(2)G101 (VIN 1)
Figure 3:

Passenger Compartment, Front of the Instrument Panel (IP) (Oldsmobile Shown, Buick Similar)
Object Number: 423167 Size: LF
(1)Outside Mirror Switch
(2)Fog Lamp Switch
(3)Cruise Control Switch
(4)Instrument Cluster
(5)Turn Signal/Hazard Switch
(6)Horn Switch
(7)Windshield Wiper Switch
(8)Radio
(9)Accessory Power Receptacle
(10)Traction Control Switch (Oldsmobile)
(11)Ashtray Lamp
(12)Cigar Lighter
(13)Fuel Door Release Switch
(14)Rear Compartment Lid Release Switch
(15)Steering Wheel Controls
(16)Headlamp Switch (Buick)
(17)Interior Dimming Switch
Figure 4:

Rear Compartment, Under the Rear Shelf Panel
Object Number: 342868 Size: LF
(1)Remote Function Actuator (RFA) Module
(2)Rear Package Shelf
(3)Bose® Amplifier
(4)S223
(5)S232
(6)Bose® Subwoofer