Mercedes-Benz 2006 SL 500 Operator's Manual page 228

Parktronic system malfunction
If only the red distance segments illumi-
nate and a warning sounds, there is a mal-
function in the Parktronic system. The
Parktronic system will automatically
switch off after 20 seconds and the indica-
tor lamp in the Parktronic switch comes
on.
Have the Parktronic system checked
by an authorized Mercedes-Benz
Center as soon as possible.
If only the red distance segments illumi-
nate and no warning sounds, the Parktron-
ic system sensors are dirty or there is an
interference from other radio or ultrasonic
signals. The Parktronic system will auto-
matically switch off after 20 seconds and
the indicator lamp in the Parktronic switch
comes on.
Switch off the ignition.
Clean Parktronic system sensors
( page 326).
Switch on the ignition ( page 36).
or
Check the Parktronic system operation
at another location to rule out interfer-
ence from outside radio or ultrasonic
signals.
Controls in detail
Driving systems
227