Objects Detected by Both the Front and Rear Sensors
In general, if objects are detected at the same time near both the front and rear bumpers while backing up, the beeps only sound to indicate that objects are close to the rear bumper.
However, if an object comes within 0.3m (1 ft) of the front bumper while the vehicle is backing up and at the same time there is another object further than 0.3m (1 ft) from the rear bumper, then the beeps only sound to indicate the object that is closer to the front bumper.
See also:
Power Liftgate
On vehicles with a power liftgate, the switch is on the driver door.
The vehicle must be in P (Park) to use the power feature.
The taillamps flash when the power liftgate moves.
WARNING
...
Introduction
The names, logos, emblems,
slogans, vehicle model names, and
vehicle body designs appearing in
this manual including, but not limited
to, GM, the GM logo, CADILLAC,
the CADILLAC Crest and ...
Automatic Entry Recall
If entry/exit recall is programmed
on in the vehicle personalization
menu, automatic entry recall occurs
when the ignition is turned on.
See Vehicle Personalization.
To stop recall movement,
...