Parts for your 2009 Lexus Is-Cv joint

2009 Lexus IS CV joints: what’s fitted and how to look after them

Based on the Lexus IS (XE20, 2006–2013) Repair Manual and the Toyota/Lexus Electronic Parts Catalogue, the 2009 Lexus IS does use CV joints. Rear‑wheel drive variants (IS 250/350 RWD) have CV joints on the rear half‑shafts (inboard tripod and outboard CV at each side), while all‑wheel drive models (IS 250 AWD) add CV joints to the front drive shafts as well. These factory sources list the “Drive Shaft Assembly, Rear Axle” and, for AWD, “Front Drive Shaft Assembly”, each comprising joints, boots, and grease—so CV joints are absolutely relevant on this model.

On a 2009 Lexus IS, the CV joint’s job is to transfer power smoothly while the suspension moves, and on AWD fronts, while the wheels steer too. That clever joint design keeps the drive silky and quiet, minimising vibration and tyre scrub even under load or full lock. When the protective boot stays intact and greased, the joints can run for years without a peep.

Good servicing keeps them that way. During routine maintenance (every service or at least each 10–15,000 km), a quick visual check goes a long way:

• Look for split or weeping boots and any grease flung around the inner guards or underbody.
• Listen for clicking on turns (AWD fronts) or a rhythmic knock/shudder under acceleration (front or rear).
• Note vibrations at highway speeds that change with throttle—often a sign of joint or shaft imbalance.

If a boot is torn but the joint isn’t noisy, a boot kit and fresh high‑moly CV grease can save the day. Once a joint clicks or grinds, replacing the whole shaft assembly is usually the most reliable fix. Use quality parts, new axle nuts and clips, and don’t forget new oil seals where the shafts enter the diff. Torque specs matter—have a workshop manual on hand or get a trusted tech to handle it.

Owners of RWD IS models should remember the CV joints live at the rear, so noises can seem like a diff or bush issue, proper diagnosis helps. AWD owners have two extra shafts up front, so an alignment check after front shaft work is smart. Treat the boots kindly, avoid torn‑boot “split” quick fixes, and the IS’s CVs will keep things smooth for many kilometres.

• Does a 2009 Lexus IS have CV joints if it’s rear‑wheel drive?
  Yes. RWD models use CV joints on both rear half‑shafts (inner and outer) to let the independent rear suspension move while still sending power. The front wheels on RWD don’t have CV joints because they’re not driven.
• How long do CV joints last on a 2009 IS?
  With intact boots, many last well beyond 150,000–200,000 km. Harsh roads, torn boots, and contamination shorten their life. Regular inspection and prompt boot repairs dramatically extend service life.
• Is it safe to drive with a torn CV boot?
  Not for long. Grease escapes and grit gets in, turning a repairable boot job into a full shaft replacement. If a boot is torn, organise a fix as soon as possible to protect the joint.