Buick 2010 Lacrosse Owner's Manual page 328

13 Driver Seat
Diagnostic Link
14
Connector
15 Airbag
16 Trunk
Heater Ventilation
17 Air Conditioning
Controller
®
Radio, OnStar
18 Universal Hands
Free Phone
19 Display
Automatic Occupant
20
Sensing
Instrument Panel
21
Cluster
22
23
24
25
,
26
R1
R2
R3
Discrete Logic
Ignition Switch
Body Control
Module 3
Body Control
Module 2
Rear Heater
Ventilation Air
Conditioning/Blower
AC/DC Inverter
Trunk Relay
Not Used
Power Outlet Relay
The rear compartment fuse block is
located on the left side of the trunk
behind a cover.