Lexus RX / TX Steering Knuckle Recall: Front Knuckles May Crack & Break (26LA09)
A small but serious recall on brand-new 2026 SUVs: a batch of forged-aluminum front steering knuckles missed a heat-treatment step at the supplier, so they can crack and break if the vehicle hits a pothole or a curb — potentially taking steering control with them. Lexus recall 26LA09 (NHTSA 26V598; Toyota 26TA19) covers 617 vehicles built in a one-week window, June 18–26, 2026. The dealer fix is free — but only if owners know the recall is out.
Master Tech Takeaway
This is a process defect, not a design flaw — the knuckles are dimensionally perfect and pass every visual and geometric check. They are simply weaker than spec, in a way only hardness or load testing reveals. That also means you cannot inspect your way to confidence: being on the model list is not enough, and looking at the part tells you nothing. Check your VIN — that is the only test that matters.
Affected Vehicles
All 617 vehicles are 2026 model year, built between June 18 and June 26, 2026. Toyota could not estimate what share actually contains a defective knuckle — the suspect population is defined by which batch of knuckles went into the cars, not anything measurable now. Owners should check the VIN at nhtsa.gov/recalls.
| Model | Built | Units |
|---|---|---|
| Lexus RX350 | Jun 18–24, 2026 | 196 |
| Toyota Grand Highlander Hybrid | Jun 19–25, 2026 | 127 |
| Toyota Grand Highlander | Jun 19–26, 2026 | 126 |
| Lexus RX350 Hybrid (RX350h) | Jun 18–24, 2026 | 83 |
| Lexus TX350 | Jun 19–25, 2026 | 61 |
| Lexus TX500 Hybrid (TX500h) | Jun 19–25, 2026 | 23 |
| Lexus RX500 Hybrid (RX500h) | Jun 23, 2026 | 1 |
The Condition: Weaker-Than-Spec Knuckles
The front steering knuckles on affected vehicles may be weaker than specification. If one fractures — at the strut or tie-rod attachment point — steering control may be reduced or lost, increasing crash risk. Toyota specifically names pothole or curb impacts as the kind of event that can trigger the fracture. As of September 9, 2026, Toyota had received no U.S. warranty claims or field reports tied to the defect — this recall was caught by testing and process tracing, not by failures on the road.
Root Cause: A Skipped Furnace Step
The knuckles were forged aluminum from supplier Bharat Forge Aluminum USA. One batch shipped without completing the aging-furnace step of heat treatment — the hours-long hold at temperature that gives forged aluminum its specified strength. The supplier caught the miss in a routine quality audit in late June 2026 and contacted Toyota, which investigated, traced the weak knuckles to 617 U.S. vehicles, and issued the voluntary recall on September 11, 2026.
3 Things Your Dealer May Not Tell You
1. Don't wait for the letter — check the VIN now
Owner letters go out November 2–16, but your VIN is checkable at nhtsa.gov/recalls today. With only 617 vehicles, the letter system has no margin for error — a wrong address or a lost envelope means you never hear about a steering defect.
2. A hard pothole hit after this news is a get-it-checked event
Toyota names pothole and curb impacts as the exact trigger. If you own an affected vehicle and the steering feels off afterward — looseness, pull, new noise — get it checked promptly rather than waiting for the scheduled recall visit.
3. Shopping a new 2026 RX or TX? Ask before delivery
The affected cars came from a one-week build window, so most dealer inventory is clear — but confirmation is one VIN lookup. Ask the dealer to confirm the vehicle is clear of recall 26V598 / 26LA09 before you sign and drive it home.
What To Do As An Owner
Check your VIN now at nhtsa.gov/recalls — do not wait for the letter. Build dates June 18–26, 2026 are the window; if your vehicle was built outside it, you are clear.
Watch for the letter: owner notifications go out November 2–16, 2026.
The dealer visit is free: dealers inspect the front steering knuckles and replace them at no cost if they came from the suspect batch.
If you hit a hard pothole or curb: Toyota names exactly that as the trigger event. If the steering feels off afterward — looseness, pull, noise — get it checked promptly.
Recall Details
Common Questions
Which vehicles are affected by Lexus recall 26LA09? +
Recall 26LA09 (NHTSA 26V598) covers 617 model-year 2026 SUVs built June 18–26, 2026: Lexus RX350 (196), RX350 Hybrid (83), RX500 Hybrid (1), TX350 (61), TX500 Hybrid (23), plus the Toyota Grand Highlander (126) and Grand Highlander Hybrid (127). Being on the model list is not enough — owners must check the VIN.
What happens if the steering knuckle cracks? +
A cracked or broken front steering knuckle can reduce or eliminate steering control, increasing crash risk. Toyota specifically names pothole or curb impacts as the trigger event. As of September 9, 2026, Toyota had received no U.S. warranty claims or field reports tied to the defect.
What caused the steering knuckle defect? +
Supplier Bharat Forge Aluminum USA shipped one batch of forged-aluminum front steering knuckles that skipped the aging-furnace step of heat treatment. The parts are dimensionally perfect and pass every geometric check — they are simply weaker than specification. The supplier caught the miss in a late-June 2026 quality audit.
Is the 26LA09 repair free? +
Yes. Dealers inspect the front steering knuckles and replace them at no cost if they came from the suspect batch. Owner letters go out November 2–16, 2026, but owners can check their VIN at nhtsa.gov/recalls now instead of waiting.
Related Lexus Repair Resources
Written by a Certified Lexus Master Technician
10 years as a Lexus Master Diagnostic Technician. Every recall and TSB bulletin on TorqueLexus is checked against the manufacturer's own documents — NHTSA filings, TSB text, and campaign reports — before it is published.