This information provides repair recommendations and general guidelines for steel classified as Dual Phase Steel (Dual Phase Steel with a tensile strength up to and including 800 MPa), also known as DP.
General Motors recommends the following when repairing or replacing this type of steel during collision repair.
Note: The use of heat to repair damage is not recommended for this classification of steel.
Recommended Repairs
Installation Procedure
High Strength Low Alloy SteelInstallation Procedure
Clean and prepare the attaching surfaces for welding.
Apply one-part windshield urethane adhesive as noted from the original
panel.
Position the roof panel (1) on the
vehicle.
Verify the fit of the panel.
Clamp the panel into position.
Spot weld accor ...
Parking Brake
To apply the parking brake, pull up on the parking brake handle. It is not necessary
to push in on the release button while applying the parking brake. If the ignition
is in the ON/RUN position, the brake system warning light will come on.
To release the parking brake:
1. Hold the brake peda ...
Installation Procedure
Drill 8 mm (5/16 in) for plug welding along the edges of the service
panel as noted from the original panel.
Clean and prepare the attaching surfaces for welding.
Apply one-part windshield urethane adhesive as noted
from the original panel.
Position the roof ...