See also:

How the System Works
URPA comes on automatically when the shift lever is moved into R (Reverse). A single tone sounds to indicate the system is working. URPA operates only at speeds less than 8 km/h (5 mph). An obstacle ...

Safety
The National Highway Traffic Safety Administration gave the 2007 Yukon a five-star frontal crash-test rating; it hasn't done a side-impact test as of this writing. Rollover ratings were listed at ...

2011 GMC Acadia Review
As many SUVs have evolved into what some folks call crossovers, they have also morphed from utilitarian, truck-like vehicles into more luxurious ones. Some dedicated luxury brands have entered the ...