Mercedes-Benz GLB 2023 Operator's Manual page 423

Display messages and warning/indicator lamps 421
Brakes
Warning/indicator lamp Possible causes/consequences and Solutions
M
F * The red electric parking brake indicator lamp flashes or is lit.
The yellow electric parking brake indicator lamp is also lit in the event of a malfunction.
Note the messages on the instrument display.
#
Electric parking brake indi-
cator lamp (red) (USA only)
!
Electric parking brake indi-
cator lamp (red) (Canada
only)
!
Electric parking brake indi-
cator lamp (yellow)