Parts for your 2020 Lexus Is-Cv joint

2020 Lexus IS CV joints: what they do and how to look after them

A CV joint is absolutely relevant on the 2020 Lexus IS. Technical sources including the Lexus Electronic Parts Catalogue (EPC) for the XE30 series and the Lexus/Toyota Repair Manual (TIS) list drive shafts with constant velocity joints on this model. RWD variants use CV-jointed rear axle shafts (notably identified in the EPC as “shaft assy, rear drive, LH/RH” with outboard and inboard joints), while AWD variants use CV-jointed front drive shafts as well as rear shafts. The workshop manual sections “Front Drive Shaft” and “Rear Drive Shaft” outline joint types (Rzeppa-style outer, tripod or DOJ inner), boot inspection, and service procedures—clear evidence that CV joints are part of the driveline on this car.

On the 2020 IS, the CV joint lets each driven wheel move up and down with the suspension and steer (on AWD fronts) while still transmitting smooth torque. That means quiet, vibration-free acceleration and tidy handling—just what a Lexus driver expects.

For servicing, the big ticket is keeping the CV boots intact. Those rubber boots hold special grease and keep out grit and water. If a boot splits, grease flings out and the joint will wear fast. In Australia and New Zealand, a sensible approach is to inspect the CV boots every service (typically 12 months/15,000 km), or sooner if the car sees rough roads.

• Tell-tale signs: grease sprayed around the inner guard or suspension, a clicking or clacking noise on turns (especially from outer joints), or vibration under throttle.
• If a boot is torn but the joint’s still quiet, a boot kit and fresh grease can save the day. If there’s noise or noticeable play, a complete shaft assembly is usually the better fix.
• Use quality moly CV grease, new clamps, and follow the Lexus torque specs and alignment marks in the Repair Manual. Aftermarket shafts can be fine, but OE or premium reman units tend to last longest.

For AWD models, front CVs deserve extra attention because they work through steering angles. For RWD models, the rear half-shafts do the heavy lifting, keep those boots clean and supple and they’ll go the distance. Any time the suspension is apart, it’s smart to re-check boots, clamps, and flange seals before buttoning up.

Popular questions about 2020 Lexus IS CV joints

How long do CV joints last on a 2020 IS?
With intact boots and proper grease, many see well over 150,000 km. Harsh roads, lowered suspension, or torn boots shorten life. Regular inspections at each service help catch issues early.

Can a torn CV boot be repaired or does the whole shaft need replacing?
If the joint hasn’t started clicking and there’s no gritty feel, a new boot and fresh grease is fine. If there’s noise, rust staining, or play, replacing the complete drive shaft assembly is typically the better value and reliability move.

Is a clicking sound when turning always the CV joint?
Often it is—especially an outer joint—but not always. Wheel bearings, loose hub hardware, or even brake hardware can mimic the noise. A proper inspection will pinpoint the culprit before parts are swapped.