Mercedes Benz 2009 M-Class User Manual

When the engine is started, the seat belt 
telltale

< will always illuminate 

for 6 seconds to remind you and your pas-
sengers to fasten your seat belts.

If the driver’s seat belt is not fastened 
when the engine is started, an additional 
warning chime will also sound for a maxi-
mum of 6 seconds or until the driver’s 
seat belt is fastened.

If after these 6 seconds the driver’s or the 
front passenger’s seat belt (with the front 
passenger seat occupied) is not fastened 
with front doors closed,

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the seat belt telltale

< remains illu-

minated for as long as either the driv-
er’s or front passenger’s seat belt is not 
fastened

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and if the vehicle speed once exceeds 
15 mph (25 km/h), the seat belt 
telltale

< starts flashing and a 

warning chime sounds with increasing 

intensity for a maximum of 60 seconds 
or until the driver’s and the front pas-
senger’s seat belt are fastened.

If the driver’s or the front passenger’s 
seat belt remains unfastened after 
60 seconds, the warning chime stops 
sounding, the seat belt telltale

< 

stops flashing but continues to be illu-
minated.

The seat belt telltale

< will only go out 

if both the driver’s and the front passen-
ger’s seat belt (with the front passenger 
seat occupied) are fastened, or the vehicle 
is standing still and a front door is opened.

For more information, see “Practical hints” 
(

컄

page 421).

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Never use a seat belt for more than one 
person at time. Do not fasten a seat belt 
around a person and another person or 
other objects.

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Belts should not be worn twisted. In a 
crash, you would not have the full width 
of the belt to distribute impact forces. 
The twisted belt against your body could 
cause injuries.

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Pregnant women should also use a 
lap-shoulder belt. The lap belt portion 
should be positioned as low as possible 
on the hips to avoid any possible pres-
sure on the abdomen.

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Never place your feet on the instrument 
panel, dashboard or on the seat. Always 
keep both feet on the floor in front of the 
seat.

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When using a seat belt to secure infant 
or toddler restraints or children in 
booster seats, always follow the child 
seat manufacturer’s instructions.