compression ratio BUICK LUCERNE 2006 Owner's Manual

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,
seeWashing Your Vehicle on page 5-87. If the DIC
still displays the PARK 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 PARK 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, seeDIC Warnings and Messages on page 3-56.
If the bumper is damaged, your URPA system may
not work properly. Take the vehicle to your dealer
to repair the system.
Accessory Power Outlet(s)
The accessory power outlets can be used to plug in
electrical equipment such as a cellular telephone or
CB radio.
Your vehicle has two power outlets. One is located next
to the ashtray and the other is located on the right
forward lower edge of the driver’s seat.
Your vehicle may have a small cap that must be pulled
down to access the accessory power outlet. If it does,
when not using the outlet be sure to cover it with
the protective cap.
Notice:Leaving electrical equipment on for
extended periods will drain the battery. Always turn
off electrical equipment when not in use and do
not plug in equipment that exceeds the maximum
amperage rating.
Certain electrical accessories may not be compatible to
the accessory power outlets and could result in blown
vehicle or adapter fuses. If you experience a problem
see your dealer for additional information on the
accessory power outlets.
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