Symptoms
Possible engine knocking, rough running, a no-start or a loss of motive power. Many affected trucks show no symptoms.
The fix, step by step
- Enter the VIN at lexus.com/recall or nhtsa.gov/recalls.
- NHTSA's recall record now gives the remedy: dealers inspect the No. 1 main bearing using inspection software and drive data and replace the engine if necessary, free of charge.
- Owner letters were mailed August 28, 2026.
- If your truck is affected, get the inspection result, and any engine replacement, in writing and keep the records.
- Future buyers will ask.
Tools & part numbers
- VIN
- Lexus dealer
Where to buy the parts
Hunting a used or discontinued part? Search eBay Motors for Lexus GX 550 parts →
Rated for a competent home mechanic with a decent tool kit. Confirm torque figures, fluids and procedures against the factory service manual for your VIN, support the truck on stands rather than a jack, and work at your own risk (disclaimer). Some parts links are affiliate links, which pay us a small commission at no cost to you.