Remember: You're always a role model
Children are always learning and imbibing from their social environment. There is never time out when you're not influencing your kids by what your do and say. It is human to make mistakes such as swearing, forgetting a promise, or expressing prejudice.
The important thing is to
make up for it in an appropriate way. For example, if you get carried
away by emotions and call somebody nasty names, you need to undo the
hostility by commenting right after: "I shouldn't have said that" or
"No, I don't mean that" etc.
Why the back seat is a road rage nursery
Surveys show that moms tend to be aggressive drivers, especially when driving SUVs. Keep in mind that you're teaching your kids to drive the way you drive:
They get conditioned to the way you handle the vehicle, how fast you tend to go, whether you take corners abruptly, or pull out of a parking lot fast, or slam your breaks, change lanes frequently, fail to obey road signs.
When they start driving as teenagers they automatically begin to drive as they've been habituated for years. You can teach your children to adopt peaceful attitudes towards other drivers by telling them you value supportive rather than aggressive driving styles.
Get them involved in driving issues when they are in the car with you. See if they know the way, point out traffic signs to them, and show them how driving depends on teamwork, not competition.