Parts for your 2022 Toyota Camry-Radiator cap

2022 Toyota Camry radiator cap — what it does and how to look after it

Yes, the 2022 Toyota Camry uses a radiator cap. Technical sources back this up: the 2022 Camry Owner’s Manual references the radiator cap in the cooling system cautions, and the Toyota Repair Manual for the XV70 (A25A-FKS/A25A-FXS/2GR-FKS) details removal/installation and pressure testing of the “Radiator Cap Sub‑Assembly”. Toyota’s electronic parts catalogue also lists a Cap Sub‑Assembly, Radiator for 2018–2022 Camry models. On many variants the cap is located on the engine-mounted filler neck rather than on the plastic radiator tank, but it serves the same purpose.

The radiator cap on a 2022 Camry is a pressure regulator. By holding about 1.1 bar (roughly 108 kPa), it raises the coolant’s boiling point, keeps the system sealed, and manages expansion and contraction as the engine heats and cools. Its little vacuum valve helps draw coolant back from the overflow bottle as things cool down, keeping the system full and air-free.

As part of regular servicing, it’s smart to inspect the cap at each service and especially whenever coolant is changed (Toyota Super Long Life Coolant—pink). Look for nicks or hardening in the rubber seals, corrosion on the filler neck, a sticky valve, or a weak spring. Only open the cap when the engine is stone cold—hot systems are under pressure and can cause serious burns.

• Choose an OE-spec cap with the correct pressure rating (around 108 kPa / 1.1 bar for most 2022 Camry variants).
• Clean the filler neck before refitting so the seals seat properly.
• After replacing the cap or servicing coolant, bleed air per Toyota’s procedure, a spill-free funnel helps.

Warning signs a cap may be due for replacement include slow coolant loss with no visible leaks, hoses collapsing after cool-down, overheating at low speeds, or the overflow bottle staying full while the radiator ends up low. Many workshops will proactively replace a cap around the first coolant change (up to 10 years/160,000 km initially, then 5 years/80,000 km thereafter) or sooner if any test shows it won’t hold pressure. It’s a low-cost part that protects the head gasket, water pump, and thermostat—cheap insurance for the Camry’s engine, whether it’s the 4-cylinder, hybrid, or V6.

Popular questions

Where is the radiator cap on a 2022 Toyota Camry?
On most 2022 Camry models the cap is on the engine’s coolant filler neck near the upper radiator hose, not on the plastic radiator tank. There’s also a separate translucent overflow reservoir with a simple non-pressurised cap.

What pressure rating should the 2022 Camry’s radiator cap have?
Most Australian and New Zealand–delivered 2022 Camry variants use an OE cap around 108 kPa (1.1 bar). Always match the part number or rating shown on the original cap or confirm via Toyota parts for the specific engine code.

Can a bad radiator cap cause overheating?
It can. If the cap can’t hold pressure, coolant may boil earlier and push into the overflow, leaving the system low and allowing air pockets. That can show up as intermittent overheating, poor heater performance, and collapsed hoses after cool-down.