The phrase "ignition system" refers to the part of a vehicle or machine that helps start the engine. It creates a spark that ignites the fuel, allowing the engine to run. Full definition
The cabin boasts more soft - touch materials and an optional keyless ignition system. (automobilemag.com)
I'm looking at high resolution photos of your engine compartment and its not clear on what type of ignition system you have. (mechanics.stackexchange.com)
What also existed then was the electronic ignition system. (humblemechanic.com)