Mercedes-Benz S-Class Saloon W223 2021 Owner's Manual page 516

514 Display messages and warning/indicator lamps
Display messages
PRE-SAFE inoperative See
Owner's Manual
PRE-SAFE impulse side
inoperative See Owner's
Manual
Key
Display messages
Á
Replace key
Á
Change key batteries
Possible causes/consequences and
* The PRE‑SAFE ®
functions are malfunctioning.
Consult a qualified specialist workshop.
#
* The PRE‑SAFE ®
Impulse Side system is malfunctioning or inoperative after having already been triggered.
Consult a qualified specialist workshop.
#
Possible causes/consequences and
* Have the key replaced.
Consult a qualified specialist workshop.
#
* The key battery is discharged.
Replace the battery (
/
#
Solutions
M
Solutions
M
page 80).
P223 0288 02