GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Low Beam and Daytime Running Lamps (TT4)


Object Number: 2137034  Size: FS
Figure 2:

High Beam (TT4)


Object Number: 2137035  Size: FS
Figure 3:

Low Beam and High Beam (TT2/TT6)


Object Number: 2137036  Size: FS
Figure 4:

Adaptive Forward Lighting


Object Number: 2172225  Size: FS
Figure 5:

Headlight Leveling (TR6)


Object Number: 2137031  Size: FS
Figure 6:

Headlight Leveling (TT6)


Object Number: 2137032  Size: FS
Figure 7:

Headlight Leveling and Position (TT2)


Object Number: 2137033  Size: FS
Figure 8:

Height Sensors (TT2/TT6)


Object Number: 2137030  Size: FS