Truce –noun

1. a suspension of hostilities for a specified period of time by mutual agreement of the warring parties; cease-fire; armistice.

2. an agreement or treaty establishing this.

3. a temporary respite, as from trouble or pain.

Even in war it is understood that there are agreed protocols to suspend hostilities.
Can anyone tell me if we have something similar for conversation, discussion and when posing an argument.

What is the process called to suspend discussions?

But even if we did have a "truce" for conversation, to me, this is like saying that it is safe to drive in my car. We may not have any brakes, bald tyres or a very good steering or suspension but
don’t worry we have airbags!

Airbags and a truce in conversation means that we have already gone beyond the point where some damage is being done to the relationship. I know it might be a relief to have an airbag but who exactly wants to use one?

So even if we could find a word for a suspension in conversation I would not be too thrilled to have to use it but still nice to have in emergencies. Better still to have excellent brakes, new tyres and good suspension and steering.

So what are the brakes, tyres, suspension & steering in this metaphor?