Limited-Slip Differential
Vehicles with a limited-slip differential can give more traction on snow, mud, ice, sand, or gravel.
It works like a standard differential most of the time, but when traction is low, this feature allows the drive wheel with the most traction to move the vehicle.
See also:
Reporting Safety Defects to the
United States Government
If you believe that your vehicle has a defect which
could cause a crash or could cause injury or
death, you should immediately inform the National
Highway Traffic Safety Administration (NHTSA)
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How the System Works
URPA comes on automatically when the shift lever
is moved into R (Reverse). The rear display briefly
illuminates to indicate the system is working.
URPA operates only at speeds less than 8 km/h
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Online Owner Center
Online Owner Center
(United States only)
The Owner Center is a resource for your GM
ownership needs. Specific vehicle information
can be found in one place.
The Online Owner Center allows you to: ...