Parts for your 2018 Toyota Prius-Universal joints

2018 Toyota Prius universal joints — are they even a thing?

Short answer: universal joints aren’t a driveline item on a 2018 Toyota Prius. That’s not just workshop lore — Toyota’s own technical literature backs it. The Toyota New Car Features manual for the ZVW50-series Prius details a front‑wheel‑drive layout using the P610 hybrid transaxle and left/right front drive shafts. The Repair Manual (Drivetrain/Axle – Front Drive Shaft) specifies outboard Rzeppa-type and inboard tripod-type constant velocity (CV) joints on those shafts. There’s no longitudinal propeller shaft, so there’s no need for classic prop‑shaft universal joints. That lines up with standard practice noted in drivetrain texts and SAE guidance: U‑joints are typically used on rear‑wheel‑drive or 4WD propeller shafts, while FWD cars like Prius rely on CV joints to handle big steering angles smoothly.

Why doesn’t the Prius use universal joints? Its FWD transaxle sends power directly to short front drive shafts. CV joints keep rotational speed constant through large angles, which gives the Prius its smooth take‑off and turning behaviour without the vibration a simple U‑joint can introduce at higher articulation. Out back, the Gen 4 Prius runs a compact independent suspension with no driven axle, again removing any need for a prop shaft and U‑joints.

One exception worth noting: like most modern cars, the Prius uses a small universal joint in the steering intermediate shaft. That component is separate from the drivetrain and is not a routine service item, Toyota supplies the intermediate shaft as an assembly. If there’s play, corrosion, or a knock felt through the wheel around centre, that shaft can be inspected and replaced as needed.

• What it doesn’t have: prop‑shaft universal joints in the drivetrain.
• What it does have: front CV joints (serviceable by replacing the driveshaft or boot as specified), and a steering column intermediate shaft with a small U‑joint (replace on condition).

So if someone’s chasing “Prius universal‑joints”, they’re usually after front CV joint attention. Typical signs: clicking on full lock, split boots slinging grease, or shudder under load. Regular servicing on a 2018 Prius should include a quick look at CV boots for cracks and grease leaks, listening for turn‑clicks on a test drive, and checking for any free play in the steering intermediate shaft. Technical references: Toyota New Car Features (ZVW50 series, Hybrid System/Drivetrain), Toyota Repair Manual – Drivetrain/Axle: Front Drive Shaft (Rzeppa and tripod CV joints), and standard drivetrain texts noting U‑joint use on longitudinal propeller shafts rather than FWD layouts.

Popular questions

Does a 2018 Toyota Prius have universal joints in the drivetrain?
No. The 2018 Prius is FWD with CV joints on the front drive shafts and no propeller shaft, so there are no driveline universal joints. Any “joint” servicing typically refers to CV joints or boots.

What should be serviced instead of universal joints on a Prius?
Inspect the front CV boots for splits and grease leaks, listen for clicking on full lock, and check for vibration under acceleration. Replace the driveshaft or boot per Toyota procedures if wear is found.

Is there a steering column U‑joint on a 2018 Prius?
Yes, in the intermediate shaft. It’s not a scheduled service item, replace the shaft if there’s play, rust binding, or a knock around centre. It’s separate from the drivetrain and is supplied as an assembly.