1999 BUICK RIVIERA lock

yellowblue
6-33
The driver's side low-beam headlamp access area
is behind and between the high
-beam area and the
air cleaner.
1. Loosen the two bolts on the inboard edge of the
headlamp assembly. This allows you to pull out
the assembly for more hand clearance when
changing bulbs.
2. Reach into the assembly
and turn the bulb socket
one
-quarter of a turn
toward the center of the
engine compartment,
while pressing it firmly.
3. Remove the wire connector from the bulb by
lifting the lock tab (B) and pulling it away from the
plastic base.
4. Install the bulb by putting the small tab (D) into the
small notch in the lamp (E).5. Turn the bulb socket one
-quarter of a turn making
sure the tab is properly engaged in the panel slot.
6. To reassemble, attach the wire connector (A) to the
plastic base making sure the lock tab (B) is over the
lock (C).
7. Replace the headlamp assembly and tighten the two
bolts on the inboard edge of the assembly.
Headlamp Aiming
Your vehicle has a headlamp system equipped with
horizontal and vertical aim indicators. The aim has been
pre
-set at the factory and should need no further
adjustment. This is true even though your vertical and
horizontal aim indicators may not fall exactly on the ª0º
(zero) marks on their scales.
If your vehicle is damaged in an accident, the headlamp
aim may be affected. Aim adjustment may be necessary
if it is difficult to see lane markers (for horizontal aim),
or if oncoming drivers flash their high beams at you (for
vertical aim). If you believe your headlamps need to be
re
-aimed, we recommend that you take it to your dealer
for service; however, it is possible for you to re
-aim
your headlamps as described in the following procedure.

yellowblue
6-35
2. Turn the vertical aiming screw (C) until the level
bubble (D) is lined up with zero.
Front Turn Signal Lamps
The turn signal bulb is located in the front fascia.
1. Remove the panel on the underside of the bulb assembly
by pulling the two fasteners that hold it in place.
2. Reach in to press the locking tab and twist the bulb
socket one
-quarter of a turn counterclockwise and
pull the bulb out of the socket.
3. Replace the bulb, then reassemble by reversing Steps
1 and 2.
Taillamps/Rear Turn Signal/Back-Up
Lamps
Taillamps: A, B and C
Rear Turn Signal: A and C
Back
-Up Lamps: D
The entire taillamp assembly must be removed to
change any of these bulbs.

yellowblue
6-37
3. Pull the taillamp assembly away from the vehicle
carefully, to avoid scratching the paint. The taillamp
has safety straps to help you hold the assembly while
replacing the bulbs.
The following instructions explain how to change
each bulb.1. Remove the bulb socket assembly by squeezing the
plastic lock and turning it one
-quarter of a turn
counterclockwise.

yellowblue
6-59
Instrument Panel Fuse BlockFuse Usage
1 Air Bag
2 Injectors
3 Anti
-Lock Brake System
4 Left Exterior Lamps
5 Turn Signal Lamps
6 Oxygen Sensor
7 Climate Control
8 Right Exterior Lamps
9 HVAC Relay
10 MAF
11 Auxiliary Power
12 Interior Lamps
13 Chime
14 TMNSS
15 Cruise Control
16 Perimeter Lights
17 Not Used

yellowblue
6-60
Fuse Usage
18 Not Used
19 Radio
20 Cooling Fan
21 Not Used
22 Not Used
23 Windshield Wipers
24 Flat Pack Motor
25 PCM
26 Cigarette Lighter
27 Crank
28 HVAC BlowerEngine Compartment Fuse Block

yellowblue
6-62
To Remove the Rear Seat Cushion
1. Pull up on the front of the cushion to release the
front hooks.
2. Pull the cushion up and out toward the front of
the vehicle.
To Reinstall the Rear Seat Cushion
CAUTION:
A safety belt that isn't properly routed through
the seat cushion or is twisted won't provide the
protection needed in a crash. If the safety belt
hasn't been routed through the seat cushion at
all, it won't be there to work for the next
passenger. The person sitting in that position
could be badly injured. After reinstalling the seat
cushion, always check to be sure that the safety
belts are properly routed and are not twisted.
1. Buckle the center passenger position safety belt, then
route the safety belts through the proper slots in the
seat cushion. Don't let the safety belts get twisted.
2. Slide the rear of the cushion up and under the
seatback so the rear locating guides hook into the
wire loops on the back frame.
3. With the seat cushion lowered, push rearward and
then press down on the seat cushion until the spring
locks on both ends engage.
4. Check to make sure the safety belts are properly routed
and that no portion of any safety belt is trapped under
the seat. Also make sure the seat cushion is secured.

yellowblue
6-63
Rear Compartment Driver's Side Fuse BlockFuse Usage
1 Open
2 Electronic Level Control
3 Trunk Release Relay
4 Open
5 Fuel Pump Relay
6 Driver Door Unlock Relay
7
-10 Open
11 Rear Defogger Relay
(Upper Zone)
12 Rear Defogger Relay
(Lower Zone)
13 Open
14 Spare
15 Spare
16 Spare
17
-22 Open
23 Direct Accessory
Power
- Accessory
24 Open

yellowblue
6-64
Rear Compartment Passenger's Side Fuse BlockFuse Usage
1
-2 Spare
3 Open
4 Breaker
- Power
Windows/Sunroof
5
-6 Spare
7 Open
8
-9 Spare
10 Open
11 Breaker
- Power Seats
12
-13 Spare
14 Open
15 Power Seat
16 Breaker
-Headlamps
17 HVAC Blower Motor
18 Powertrain Control
Module/PASS
-Key
II
19 Ignition 3
20 Ignition 1