GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2007 🢒 Lucerne 🢒 HVAC 🢒 HVAC - Manual 🢒 HVAC Component Views
Figure 1:

Behind the Front Grille
Object Number: 1707790 Size: LF
(1)Ambient Air Temperature Sensor
Figure 2:

Front Engine Compartment
Object Number: 1707774 Size: LF
(1)A/C Compressor
(2)A/C Condensor
(3)A/C Compressor
(4)A/C Refrigerant Pressure Sensor
(5)A/C Compressor Clutch Connector
Figure 3:

HVAC Module Components (C67)
Object Number: 1707697 Size: LF
(1)Blower Motor
(2)Blower Motor Control Module
(3)Recirculation Actuator
(4)EVAP Temperature Sensor
(5)Air Temperature Actuator
(6)Mode Actuator
Figure 4:

Instrument Panel
Object Number: 1707711 Size: LF
(1)Sunload Twilight Sensor
(2)HVAC Control Module
(3)Air Temperature Sensor-Inside