Toyota has finally revealed how it plans to fix thousands of recalled 2024 Toyota Tundra trucks, and not every owner will be getting a new engine.
Instead, Toyota says dealers will use inspection software and vehicle drive data to determine whether an engine has been damaged by the manufacturing defect at the center of the recall. If the software cannot verify that the engine is free from abnormal wear, Toyota will replace the engine at no cost to the owner.
The announcement provides the first detailed repair procedure since Toyota expanded its Tundra engine recall earlier this year.
Toyota’s New Fix Relies on Software
According to Toyota, certain Tundra engines may contain machining debris left behind during the manufacturing process. The debris can damage the engine’s main bearings, potentially leading to engine knocking, rough running, a no-start condition, loss of power or complete engine failure.
The issue has now affected more than 145,000 Toyota Tundra trucks across multiple recall campaigns, including the latest recall expansion and the earlier NHTSA Recall 25V767.
Affected Vehicles
- 2022-2024 Toyota Tundra
- 2022-2024 Lexus LX 600
- 2024 Lexus GX 550
To address the problem, Toyota has developed a new inspection process that uses vehicle drive data and dealer diagnostic software to evaluate the condition of the engine’s #1 main bearing.
If the inspection confirms the bearing has not suffered abnormal wear, the vehicle will not require an engine replacement. However, if the software cannot verify the bearing is free from damage related to the defect, Toyota says the engine will be replaced at no cost to the owner.
Rather than automatically replacing every engine in the recall population, Toyota is now relying on software analysis and vehicle operating data to determine which trucks need a new engine and which can remain in service.
That decision marks a significant shift from Toyota’s earlier response to the Tundra engine issue, where affected owners were told their engines would be replaced regardless of whether symptoms were present.
Not Every Owner Will Get a New Engine
For many owners, the biggest takeaway is that Toyota is not automatically replacing every engine included in the expanded recall.
Instead, the company is relying on data collected from the vehicle and its inspection software to determine which engines may have suffered damage.
That approach could reduce repair times and parts demand, but it also raises an obvious question among owners:
Can software accurately determine whether an engine has already been damaged by manufacturing debris?
Given the intense scrutiny surrounding the Tundra engine failures over the past two years, expect that question to become a major topic of discussion among owners.
Owner Letters Begin July 6
Toyota says owner notification letters are expected to be mailed beginning July 6, 2026.
Owners who believe their truck may be affected can contact Toyota Customer Service at 1-800-331-4331.
Toyota’s internal recall numbers for the campaign are 25TB14 and 25TA14. The recall expands previous campaigns 24V381 and 25V767.
In addition, Toyota says owners currently experiencing symptoms such as engine knocking, rough running, loss of power or a no-start condition should contact their dealer immediately.
What Happens Next?
The success of this repair strategy will likely depend on whether owners trust Toyota’s software-based inspection process.
On one hand, replacing every engine would be expensive, time-consuming and potentially unnecessary if many engines never develop bearing damage.
On the other hand, many Tundra owners have already watched Toyota replace tens of thousands of engines because of debris-related failures. Asking owners to trust a software inspection instead of a guaranteed engine replacement may prove to be a tougher sell.
Either way, Toyota has finally moved beyond “remedy not available” and given owners a path forward.
The question now is whether owners will be comfortable letting software decide if their engine is healthy enough to stay under the hood.
