Cadillac 2007 Escalade, Owner'S Manual, Page: 209 / 570

•
The ultrasonic sensors are not kept clean. So,
be sure to keep your vehicle’s rear bumper free
of mud, dirt, snow, ice, and slush. For cleaning
instructions, see
Washing Your Vehicle on
page 496 . If the DIC still displays the PARKING
ASSIST OFF message after cleaning the
bumper and driving forward at a speed of at
least 15 mph (25 km/h), see your dealer.
•
Other conditions that may affect system
performance include vibrations from a
jackhammer or the compression of air brakes
on a very large truck or other mechanical
devices that interfere with URPA performance.
•
When URPA is disabled without driver action
and the driver attempts to turn URPA back
on using the Driver Information Center (DIC),
the PARKING ASSIST ON option will not be
selectable if the necessary conditions stated
above for normal system operation
are not met.
As always, drivers should use care when backing
up a vehicle. Always look behind you, being sure
to check for other vehicles, obstructions and
blind spots.
For Driver Information Center messages related
to URPA, see
DIC Warnings and Messages
on page 245 .
If the bumper is damaged, your URPA system
may not work properly. Take the vehicle to
your dealer to repair the system.
209