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:
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR (a) Check the wire harness. (1) Disconnect the automatic light control sensor. (2) Measure the voltage according to the value(s) in the table below. Standard Voltage: Tester Connection Switch Condition Specified Condition H78-1 (CLTB) - H78-2 (CLTE) Ignition switch on (IG) 11 to 14 V If the specified condition is not met, replace the vehicle wire harness...
For reasons of proper performance, safety, and better fuel economy, always
maintain recommended tire inflation pressures and stay within the recommended
load limits and weight distribution.
WARNING
Using Different Tire Types
Driving your vehicle with different types of tires is dangerous...
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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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