Parts for your 2023 Toyota C-hr-Spark plugs

2023 Toyota C-HR spark plugs — what they do and when to replace them

Spark plugs are absolutely relevant to the 2023 Toyota C-HR. Toyota’s owner’s literature and service schedules for the AU/NZ-market C-HR (both the petrol turbo and the petrol‑electric hybrid) specify iridium spark plugs, and Toyota parts catalogues as well as Denso/NGK application guides list long-life plugs for these engines. There’s no diesel option in this model year, so no glow plugs — just conventional spark ignition.

On a 2023 C-HR, the spark plugs ignite the air–fuel mix in each cylinder. Good plugs mean easy cold starts, smooth idle, decent fuel economy and low emissions. In the hybrid, the engine stops and starts frequently