Toyota Yaris Hybrid common problems: what to check before you buy
Credov's researched list of the 4 faults the Toyota Yaris Hybrid is known for (2019–2021), 4 of them serious or costly. Each one says what to look for when you check the car, so you can spot it before you buy. Not every car has these faults: they are the ones worth checking on this model.
Known problems on the Toyota Yaris Hybrid
Cracked or rusty front lower arms
Safety risk
2019–2024 · M15A-FXE, M15A-FKS · Suspension and steering
What to look for: Look at each front lower arm near the ball joint for rust or cracks, and listen for clunks over bumps.
Why it matters: MLIT No. 5340 records inadequate manufacture at the ball joint mounting leaving cracks that spread over rough roads until the lower arm fractures and the ball joint drops out, impairing driving stability. MLIT No. 5445 records inadequate durability against frequent de-icing salt, so corrosion cracks and spreads to the same end state, with the vehicle unable to be driven.
What to look for: Ask for the Japanese service record showing the rear brake campaign, and feel for dragging when first rolling it after standing overnight.
Why it matters: Toyota Japan's notice states that high-pressure water from washing can enter the rear drum brake near the wheel cylinder mounting; if the water has not dried before the car is parked in low temperatures it freezes, illuminating a warning lamp and temporarily preventing the brake from releasing. The remedy is a sealant applied at the wheel cylinder mounting.
What to look for: Ask the seller if a hybrid or master warning has ever come on when accelerating, especially on wet or rough roads.
Why it matters: Toyota Japan's notice states that a small amount of rust-preventive oil was left on the power transmission section of the hybrid transaxle input damper, so hard acceleration over a slippery or uneven surface produces a sudden change in rotation, the damper slips temporarily and a warning lamp illuminates. The remedy is replacement of the input damper.
What to look for: Lift the rear seat corner cover / look at the battery intake grille by the rear seat for hair, dust or fluff.
Why it matters: Toyota service bulletins cover P0A80/P0A7F caused by dust in the HV battery cooling fan. On the XP130 the intake is under the rear seat corner cover, with a mesh (no replaceable filter) that needs cleaning; human and pet hair is the main culprit. Cleaning the intake and fan is cheap; a replacement battery is not. Left unrepaired this grows into a major repair bill.
Got a question about a Toyota Yaris Hybrid? Ask Credov: a noise, a warning light, a part or how to fix it.
Also check on every car
On top of the faults above, every Credov inspection covers the basics: fuel smell, leaks or filler rust, engine oil leaks, power steering fluid leak, drive belt cracks or squeal, rust underneath: chassis and mounts, engine mounts, engine oil level and colour, coolant level, colour and leaks, head gasket failure signs, cold start: rattle, knock or smoke, rough or hunting idle, engine running hot on gauge, gearbox or diff oil leak, swapped gearbox without lvv and more.
Researched by Credov from manufacturer recalls and service bulletins, owner reports and workshop sources. Repair prices are typical ranges, not quotes. See also fault codes and repair costs.