Honda CIVIC 2023 Owner's Manual page 4

California Perchlorate Contamination Prevention Act
The airbags, seat belt tensioners, and CR type batteries in this
vehicle may contain perchlorate materials - special handling may
apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate/
As you read this manual, you will find information that is preceded
by a symbol. This information is intended to help you avoid
NOTICE
damage to your vehicle, other property, or the environment.