This information provides repair recommendations and general guidelines for steel classified as High Strength Low Alloy Steel, also known as HSLA. This type of steel normally has a tensile strength range from 300-700 MPa.
General Motors recommends the following when repairing or replacing this type of steel during collision repair.
Recommended Repairs
Dual Phase Steel
Mild SteelTire Messages
SERVICE TIRE MONITOR SYSTEM
This message displays if there is a problem with the Tire Pressure Monitor System
(TPMS).
TIRE LEARNING ACTIVE
This message displays when the system is learning new tires.
TIRE PRESSURE LOW ADD AIR TO TIRE
On vehicles with the Tire Pressure Monitor System (TPMS), t ...
Windshield Wiper Arm Replacement
Windshield Washer Arm Finish Cap
Tip
Use a small flat-bladed tool to remove finish cap.
Special Tools
BO-6626 Wiper Arm Puller
For equivalent regional tools, refer to Special Tools.
Windshield Washer Arm Nut
Caution: Refer to Fastener Caution in the Preface section.
Procedure
...
Installation Procedure
Prepare all mating surfaces as necessary.
Align the front hinge pillar body reinforcement.
Drill 8 mm (5/16 in) for plug welding along the edges of the front hinge
pillar body as noted from the original
panel.
Clean and prepare the attaching surfaces for welding.
...