Buick 2004 Park Avenue - Manual (Page 138)

Care of the HUD
Clean the inside of the windshield as necessary to
remove any dirt or film that reduces the sharpness or
clarity of the HUD image.
To clean the HUD lens, spray household glass cleaner
on a soft, clean cloth. Gently wipe and dry the HUD
lens. Do not spray cleaner directly on the lens to avoid
cleaner leaking inside the unit.
If You Can’t See The HUD Image When
the Ignition is On
If the ignition is on and you can’t see the HUD image,
check to see if:
• The headlamps are on.
• Something is covering the HUD unit.
• The HUD dimmer control is adjusted properly.
• The HUD image is adjusted to the proper height.
• A fuse is blown. See Fuses and Circuit Breakers on
page 5-99.
Keep in mind that your windshield is part of the HUD
system. If you ever have to have your windshield
replaced, be sure to get one that is designed for HUD
or your HUD image may look blurred or out of focus.
Ultrasonic Rear Parking Assist
(URPA)
Your vehicle may be equipped with Ultrasonic Rear
Parking Assist (URPA). URPA is designed to help you
park while in REVERSE (R) and operates only at
speeds less than 3 mph (5 km/h). URPA can help you
avoid colliding with objects such as parked vehicles.
The system can detect objects 5 feet (1.5 m) behind
your vehicle and tell you how close those objects are to
your rear bumper.
The URPA display is located inside the vehicle, above
the rear window. It has three color-coded lights that can
be seen through the rearview mirror.
{ CAUTION:
Even with the Ultrasonic Rear Park Assist
system, the driver must check carefully before
backing up. The system does not operate above
typical backing speeds of 3 mph (5 km/h) while
CAUTION: (Continued)
3-20