This information provides repair recommendations and general guidelines for steel classified as Ultra High Strength Dual Phase Steel (Dual Phase Steel with a tensile strength greater than 800 MPa), also known as DPX.
General Motors recommends the following when repairing or replacing this type of steel during collision repair.
Note:
Recommended Repairs:
Special Tools and Equipment

Mild Steel
Frame and UnderbodyExterior Lighting Systems Description and Operation
Exterior Lamps
The exterior lighting system consists of the following lamps if equipped:
Headlamps
Daytime Running Lamps (DRL)
Front fog lamps
Rear fog lamps
Park, tail and license lamps
Turn signal lamps
Hazard warning lamps
Repeater lamps
Stop lamps
Backup lamps
Low Beam ...
CD Player
The CD player can play audio CDs and MP3 CDs.
The CD player will not play 8 cm (3 in) CDs.
Care of CDs
Sound quality can be reduced due to disc quality, recording method, quality of
the music recorded, and how the disc has been handled.
Handle discs carefully and store them in their original c ...
Visual Aiming Preparation Procedure
Important: Some state and local laws specify requirements for
headlamp aim. Comply with all of these laws when performing any
headlamp aiming operations.
Headlamp aim should be checked:
When a new headlamp capsule is installed.
If service or repairs to the front end area have, or may have, ...