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 UnderbodyTire Pressure
Tires need the correct amount of air pressure to operate effectively.
Notice: Neither tire underinflation nor overinflation is good.
Underinflated tires, or tires that do not have enough air, can result in:
• Tire overloading and overheating which could lead to a blowout.
• Premature or irregula ...
Ultrasonic Parking Assist
The Ultrasonic Rear Parking Assist (URPA) system assists the driver with parking
and avoiding objects while in R (Reverse). URPA operates at speeds less than 8 km/h
(5 mph). The sensors on the rear bumper detect objects up to 2.5m (8 ft) behind
the vehicle, and at least 20 cm (8 in) off the gr ...
Door Locks
To lock or unlock the vehicle from outside, use the Remote Keyless Entry (RKE)
transmitter or the key.
From inside the vehicle, use the power door lock switch.
Power Door Locks
: Press to unlock the doors.
: Press to lock the doors.
Safety Locks
The rear door safety locks prevent passenge ...