What are gease certs - Cars & Trucks

Yadayada wrote;

....."If so modern cars have sealed joints in the steering and they don't require any lubrication for the life of the vehicle."

I will simply add, 'for the life of the part'. Once it breaks, that's the end of it's life.

Not trying to be a smart alec, but the whole 'life of the vehicle' is not exactly a true statement as I've personally seen vehicles built in the 2000's where a steering joint has failed, leaving the car undrivable. Does that mean that's the end of the vehicle's life, or simply the end of the part's life?

Replacing the broken part resulted in a once again drivable vehicle.

Parts wear out. whether it's a greasable or non-greasable steering component.

It is a grease zerk. That is the fitting that a grease gun fits over to install grease,
It looks like this, but may be at an angle. The top of this is what you will see.

Do you mean "grease zerk fittings" If so modern cars have sealed joints in the steering and they don't require any lubrication for the life of the vehicle.