Toyota Yaris: Limitations to SRS Air Bag / Limitations to roll-over detection
The following illustration is an example of an accident that may not be
detected as a roll-over accident. Therefore, the front seat belt pretensioners
and curtain air bags may not deploy.
Pitch end over end

Other information:
PROBLEM SYMPTOMS TABLE HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table...
Pre-Crash Safety Technology
Pre-crash safety technology is designed to assist the driver in
averting collisions or reduce their severity in situations where they
cannot be avoided.
Collision damage reduction in low vehicle speed rangeForward driving:
Low Speed Pre-Collision System...
Categories
No special break-in is necessary, but a few precautions in the first 600
miles (1,000 km) may add to the performance, economy, and life of
the vehicle.
Do not race the engine.
Do not maintain one constant speed, either slow or fast, for a long
period of time.
Do not drive constantly at full-throttle or high engine rpm for
extended periods of time.
Avoid unnecessary hard stops.
Avoid full-throttle starts.
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