Filter
Top Products
67Restraint systems
Technical
data
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
Emergency tensioning device (ETD)
The seat belts for the front and outer rear seats are
equipped with emergency tensioning devices. These
tensioning devices are located in each belt’s inertia reel
and become operationally ready with the electronic key
in steering lock position 1 or 2.
The ETDs for the driver and front seat passenger are
designed to activate only when the seat belts are
fastened and during certain frontal impacts exceeding
the first threshold of the SRS and in rear impacts
exceeding a preset severity level. They remove slack
from the belts in such a way that the seat belts fit more
snugly against the body restricting its forward
movement as much as possible.
The rear seat belt ETDs will deploy in the same
circumstances whether or not the seat belts are
fastened.
In cases of other frontal impacts, angled impacts, roll-
overs, certain side impacts, or other accidents without
sufficient frontal or rear forces, the emergency
tensioning devices will not be activated. The driver and
passengers will then be protected by the fastened seat
belts and inertia reel in the usual manner.
For seat belt and emergency tensioning device safety
guidelines, see page 75.
Note:
The front ETD activates only if the front seat is occupied
and the seat belt is fastened.
Objects heavier than 20 lbs (9 kg) on the front
passenger seat can appear to the SRS to indicate the
presence of an occupant in that seat which causes the
passenger front airbag to deploy and the ETD to activate
in a crash exceeding the appropriate threshold.