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 SteelPark Brake and P (Park) Mechanism Check
WARNING
When you are doing this check, the vehicle could begin to move.
You or others could be injured and property could be damaged.
Make sure there is room in front of the vehicle in case it begins to roll. Be
ready to apply the regular brake at once should the vehicle begin to move.
Park on ...
Engine Oil
To ensure proper engine performance and long life, careful attention must be
paid to engine oil.
Following these simple, but important steps will help protect your investment:
• Always use engine oil approved to the proper specification and of the proper viscosity
grade. See “Selecting the Ri ...
Thread Inserts
General Purpose Thread Repair Kits.
These kits are available commercially.
Repair Procedure
Warning: Refer to Safety Glasses Warning in the Preface section.
Note: Refer to the thread repair kit manufacturer's instructions
regarding the size of the drill and tap to use. Avoid any buildup ...