1997 Honda Odyssey Owner's Manual - Page 14

Supplemental Restraint System After the crash, you may see what looks like smoke. This is actually powder from the airbag's surface. People with respiratory problems may experience some temporary discomfort from the chemicals used by the airbag's activators. Important Facts About Airbags Airbags inflate only when needed; in a severe frontal collision. A severe collision would be similar to a crash into a parked vehicle of similar size and weight at 25 mph (40 km/h). Airbags will not inflate in a moderate frontal collision, or during a rear impact, side impact, or rollover - even if the impact is severe. Just from viewing the vehicle damage after a crash, it is very difficult to accurately determine if the airbags should or should not have inflated. In some cases where the airbag did not inflate, extensive visible damage indicated that the car absorbed much of the crash energy, and the airbags were not needed. In other cases, a severe jolt, such as an impact to the undercarriage, may not cause extensive body damage but may still cause the airbags to inflate. Frontal Collision Range Airbags inflate and deflate only once. They cannot protect you during any additional impacts that can occur during a crash sequence. Injuries, including fatal injuries, can occur in a severe collision, even if seat belts are worn properly and the airbags inflate. No safety system can provide complete protection in a severe crash. Driver and Passenger Safety