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Campaign 18V432 Posted June 26, 2018 114,998 units

2006-2014 Lexus Is/Gs Recall 18V432: Fuel Damper Leak

RN
Reviewed by the RecallNotify editorial team
Published May 25, 2026

Recall 18V432 affects 114,998 2006-2014 Lexus vehicles with cracked fuel pulsation dampers. Repair is free at any franchised Lexus dealer.

Lexus is recalling 114,998 2006-2014 Is 350, Gs 350, Is 350C, and Gs Hybrid vehicles with 3.5L V6 2GR-FSE engines because fuel pulsation damper diaphragms can harden, crack, and leak fuel. A fuel leak near an ignition source can increase the risk of fire, and Lexus dealers will complete the repair free of charge.

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What's wrong?

The affected 2006-2014 Lexus Is 350, Gs 350, Is 350C, and Gs Hybrid vehicles use a 3.5L V6 2GR-FSE gasoline engine with fuel pulsation dampers in the fuel injection system. A fuel pulsation damper smooths pressure pulses in the fuel line so the injectors receive steady fuel pressure during engine operation. These vehicles have two dampers with an internal diaphragm, a flexible membrane that moves with fuel pressure changes.

On recalled vehicles, the diaphragm material can harden over time. Lexus traced the problem to a chemical process involving amine in the fuel, higher ethanol content in fuel, and high engine temperatures. Once hardened, the diaphragm can crack. A cracked diaphragm lets fuel leak from the damper area instead of staying sealed inside the fuel system.

There is no warning sign before failure. A vehicle that has not shown symptoms still needs a VIN check to confirm whether recall 18V432 applies.

Who's affected?

Spans Is 350, Gs 350, Is 350C, and Gs Hybrid across 2006-2014 model years, all tied to the fuel system.

2008 Lexus Is 350 fuel system
2007 Lexus Gs 350 fuel system
2007 Lexus Gs 350 fuel system
2009 Lexus Gs 350 fuel system
2009 Lexus Gs 350 fuel system
Units affected114,998

The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific car is included.

What's the safety risk?

A fuel leak near an ignition source can increase the risk of a fire. Until the recall repair is complete, avoid exposing the vehicle to sparks, open flames, or smoking materials, and schedule service promptly after confirming the VIN is included. Repair is free at any franchised Lexus dealer.

What should I do?

  1. Check your VIN to confirm your 2006-2014 Lexus Is 350, Gs 350, Is 350C, or Gs Hybrid is included in this recall.
  2. Contact a franchised Lexus dealer to schedule the free fuel-delivery-pipe replacement that addresses hardened, cracked fuel pulsation dampers linked to fuel leaks.
  3. Bring the recall notice if Lexus has mailed one. Reference recall number 18V432 and Lexus recall JLF when you call.
  4. Watch for fuel odor or visible fuel leakage, and contact the dealer before driving if either is present.

What happens at the repair

At the dealer, a Lexus technician replaces the fuel delivery pipe with a new pipe that has improved pulsation dampers. The replacement parts and labor are free under recall 18V432. If you've already paid out of pocket for a related fuel delivery pipe or fuel leak repair before the recall notice, the manufacturer's standard reimbursement plan covers documented expenses. Bring repair invoices and proof of payment to the Lexus service desk when you ask about reimbursement.

ReimbursementReimbursement available

Timeline

June 26, 2018 NHTSA published the recall
June 26, 2018 Dealer notification began
June 26, 2018 Dealer notification ended
August 9, 2018 VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle.
August 9, 2018 Interim owner notification (was planned for this date)
August 23, 2018 Owner notification mailed

Frequently asked questions

What is recall 18V432?

Recall 18V432 covers 114,998 2006-2014 Lexus Is 350, Gs 350, Is 350C, and Gs Hybrid vehicles with 3.5L V6 2GR-FSE engines. The fuel pulsation damper diaphragms can harden, crack, and cause a fuel leak. Lexus dealers replace the fuel delivery pipe for free.

What should I do if my 2006-2014 Lexus Is 350, Gs 350, Is 350C, or Gs Hybrid is on this recall?

Check your VIN to confirm your specific Lexus is included in recall 18V432. If it is, contact a franchised Lexus dealer to schedule the free fuel delivery pipe replacement. Reference recall number 18V432 or Lexus recall code JLF when you call.

Is the recall repair free?

Yes. Federal recall law requires the manufacturer to repair the defect at no cost. For recall 18V432, a franchised Lexus dealer replaces the fuel delivery pipe with a new pipe that has improved pulsation dampers, free of charge.

What is the safety risk?

The safety risk is fire. If the fuel pulsation damper diaphragm cracks, fuel can leak, and a fuel leak near an ignition source increases fire risk. The remedy is a free replacement fuel delivery pipe with improved pulsation dampers.

What if I bought this Lexus used?

The free recall repair still applies. Recall eligibility follows the VIN, not the current owner. Check your VIN to confirm whether your specific Lexus is included, then call a franchised Lexus dealer and reference recall 18V432 or Lexus recall code JLF.

More information

NHTSA campaign pagenhtsa.gov/vehicle-recalls/18V432000
Lexus customer service1-800-255-3987
NHTSA recall #18V432
NHTSA recall # (full)18V432000

Source documents

This article is generated from NHTSA's primary recall filings and reviewed against the source on May 25, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →