Chevrolet TrailBlazer Owner's Manual page 57

Here are the most important things to know about the
airbag system:
CAUTION:
{
You can be severely injured or killed in a crash
if you are not wearing your safety belt — even
if you have airbags. Wearing your safety belt
during a crash helps reduce your chance of
hitting things inside the vehicle or being
ejected from it. Airbags are "supplemental
restraints" to the safety belts. All airbags are
designed to work with safety belts but do not
replace them.
Frontal airbags for the driver and right front
passenger are designed to deploy only in
moderate to severe frontal and near frontal
crashes. They are not designed to inflate in
rollover, rear or low-speed frontal crashes, or in
many side crashes. And, for some unrestrained
occupants, frontal airbags may provide less
protection in frontal crashes than more forceful
airbags have provided in the past.
CAUTION: (Continued)
CAUTION: (Continued)
The roof-mounted airbags are designed to
inflate only in moderate to severe crashes
where something hits the side of your vehicle.
They are not designed to inflate in frontal
or in rear crashes. If the vehicle is equipped
with rollover capable airbags, it has been
designed to deploy the roof-mounted airbags
in the event of a vehicle rollover. Everyone in
your vehicle should wear a safety belt
properly — whether or not there is an airbag
for that person.
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