Parts for your 2015 Lexus Is-Cv joint

2015 Lexus IS CV Joint — What it is, and when to service it

Technical sources confirm the 2015 Lexus IS uses CV joints. The Lexus Repair Manual (Toyota TIS) for the 2015 IS 250/350 (XE30) includes procedures titled Rear Drive Shaft Assembly with inboard and outboard constant velocity joints on all RWD and AWD models, and Front Drive Shaft Assembly for AWD variants. The Lexus Electronic Parts Catalogue likewise lists complete axle shafts with CV joints for the rear on all models, and for the front on AWD. So a CV joint is very much relevant to a 2015 Lexus IS.

On this model, the CV joint’s job is to transfer engine torque smoothly through the drive shafts while the suspension moves. In RWD versions, the rear half-shafts use CV joints at both ends, in AWD versions, the front wheels also get CV-jointed shafts to handle both suspension travel and steering angle. Because CV joints keep rotational speed constant across angles, they cut vibration and driveline shudder, which keeps the IS feeling refined on Aussie and Kiwi roads.

Servicing is straightforward: at each regular service interval (typically every 12 months or 15,000 kilometres), a quick visual inspection of the CV boots is smart. Look for splits, perished rubber, loose clamps, or grease flung around the inside of the wheel. If a boot’s torn but the joint is still quiet and smooth, a reboot and fresh moly CV grease can save the shaft. If there’s clicking on acceleration or while turning (front on AWD) or a rhythmic knock/vibration under load (rear on all), the joint may be worn and the safest bet is a replacement joint or complete shaft assembly.

• Use OEM-spec molybdenum CV grease and new clamps when rebooting.
• Follow Lexus torque specs for axle nuts and suspension fasteners.
• On AWD, check diff and hub seals while the shaft is out.

Good tyres, correct wheel alignment, and intact engine/gearbox mounts all help CV joints live longer. Avoid pressure-washing boots up close, and keep an eye out for any new vibrations after pothole hits. With tidy boots and fresh grease where needed, the IS’s CVs typically deliver long, quiet service.

Popular questions about 2015 Lexus IS CV joints

Does every 2015 Lexus IS have CV joints?
Yes. All 2015 IS models have CV joints on the rear drive shafts. AWD versions also have CV-jointed front shafts. Only the front of RWD models lacks drive shafts, so no front CVs there.

What are the signs a CV joint is failing on a 2015 IS?
Common signs include grease spray near the inner wheel or underbody, a torn boot, clicking on acceleration or while turning (AWD front), and a thump or vibration under load (rear on all models). Left too long, it can escalate to harsh driveline shudder.

Should both sides be replaced at the same time?
Not strictly necessary. If one side’s worn or the boot’s failed, replace or reboot that side and assess the other. That said, high kilometres or matching wear may justify doing both while the tools are out.