SMART Fortwo Owner's Manual page 166

Warni ng and indicator lamps in the instrument cluster
Problem
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The red brake system
warning lamp comes on
while the engine is
running. A warning
tone also sounds.
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The red brake system
warninglampcomeson
while the engine is
running. A warning
tone also sounds.
Possi ble causes/consequences and Solutions
There is insufficient brake fluid in the brake fluid reservoir.
Li,
WARNING
The braking efficiency may be impaired .
There is a risk of an accident.
with a colour display: observe the additional dis-
play messages.
Pull over and stop the vehicle safely as soon as possible,
paying attention to road and traffic conditions. Do not con-
tinue driving under any circumstances.
the vehicle against rolling away
(I>
page 120).
Do not top up the brake fluid . Topping up will not rectify the
fault.
Consult a qualified specialist workshop.
EBD (electronic brake force distribution) is malfunctioning .
This means that abs, esp® , crosswind assist and hill start
assist, for example, are also unavailable.
Further driving systems could be switched off automatically.
Li,
WARNING
The brake system continues to function normally, but without
the functions listed above. The wheels could therefore lock
early
if
you brake hard, for example.
The steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking sit-
uation can increase.
If esp® is not operational, esp® is unable to stabilise the
vehicle.
The danger of skidding and having an accident increases.
Pull over and stop the vehicle safely as soon as possible,
paying attention to road and traffic conditions. Do not con-
tinue driving under any circumstances.
the vehicle against rolling away
(I>
page 120).
Consult a qualified specialist workshop.
I