Turning the System On and Off
The URPA system can be turned on and off using the infotainment system controls. See Vehicle Personalization on page 5‑33 for more information.
When the system is off, PARK ASSIST OFF displays on the Driver Information Center (DIC). The message disappears after a short period of time.
URPA defaults to the on setting each time the vehicle is started.
See also:
Engine Fan
If the vehicle has a clutched engine cooling fan, when the clutch is engaged, the fan spins faster to provide more air to cool the engine.
In most everyday driving conditions, the fan is spinning slo ...
Interior
The Sierra showcases two different interior designs. Work Truck and SLE
models are more utility-minded, with large controls and door handles that can be
operated while wearing gloves. The SLT offe ...
Ultrasonic Parking Assist
If available, 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 ...





