Toyota anunció que suspendió la entrega de motores diesel al descubrirse una serie de irregularidades durante el proceso de certificación de emisiones de esos impulsores. La automotriz japonesa admitió que, al momento de certificar las emisiones de esos motores, se utilizó un software para la central electrónica (ECU) que es diferente al que tienen los modelos que llegan a los clientes.

Por este motivo, y mientras continúe la investigación interna, la marca suspendió el envío de motores fabricados en Japón a las diferentes plantas que la empresa tiene en todo el mundo. Los motores diesel afectados son los 1GD, 2GD y F33A. Estos impulsores son utilizados por los siguientes modelos: Hilux, SW4/Fortuner, Hiace, Land Cruiser Prado, Innova, Land Cruiser 300, Lexus 500d y Hino Dyna/Dutro.

Estas irregularidades afectan a modelos que se comercializaron a partir del 2017 en adelante. Se vendieron en los mercados de Japón, Asia, Medio Oriente, Europa y Africa.

Si bien muchos de estos modelos se comercializan en la Argentina y hasta se producen en la planta de Toyota Argentina en Zárate (como es el caso de las Hilux, SW4 y Hiace), por el momento no se detectó que estos motores hayan llegado a nuestro mercado. La empresa informó que, a pesar de la irregularidad, los impulsores no representan un riesgo para los usuarios y pueden seguir usándolos mientras dure la investigación.

Se llamó "Dieselgate" a un caso de fraude con ensayos de emisiones de gases contaminantes, que tuvo como protagonista a todo el Grupo VW. En septiembre de 2015 se descubrió que la empresa manipuló los ensayos de emisiones contaminantes con un software especial para obtener resultados mejores a los reales. En ese caso hubo muchos modelos involucrados en la Argentina, que figuran en un recall publicado en noviembre de 2017, que aún hoy sigue activo (ver unidades afectadas).

En el caso del Grupo VW el fraude se conoció por una investigación externa a la compañía. En el caso de hoy de Toyota surgió por una investigación interna. Ya es el cuarto caso de irregularidades internas que Toyota admite haber detectado en este tipo de auditorías. Los casos anteriores se publicaron en agosto de 2022, abril de 2023 y diciembre de 2023.

En el comunicado de prensa de acá abajo, Toyota pide disculpas a los clientes por esta situación que provocará demoras en las entregas de vehículos. Los motores, modelos y mercados afectados se publican en el gráfico de más abajo.

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Comunicado de prensa de Toyota

Certification Irregularities at Toyota Industries

Toyota City, Japan, January 29, 2024―Today, Toyota Industries Corporation (TICO) reported to Toyota Motor Corporation (Toyota), which had commissioned TICO to develop diesel engines for automobiles, that it received a report from the special investigation committee (chaired by Mr. Hiroshi Inoue) that was commissioned to investigate potential irregularities of certification regulations related to inappropriate domestic emissions certification of engines for forklifts and construction machinery.

The investigation found that irregularities occurred during the horsepower output testing for the certification of three diesel engine models for automobiles that Toyota had commissioned to TICO. During certification testing, the horsepower output performance of engines was measured using ECUs with software that differed from that used for mass production so that results could measure to make values appear smoother with less variation. Ten vehicle models are using the affected engines globally, including six in Japan.
We have re-verified the mass-produced products manufactured at the plant and confirmed that the affected engines and vehicles meet engine performance output standards. Therefore, there is no need to stop using the affected engines or vehicles. However, we deeply apologize to our customers who have been supporting affected vehicles and waiting for a long time, and also to all other stakeholders for the significant inconvenience and concern that this has caused.

Based on the results of the investigation, TICO decided today to temporarily suspend shipments of the affected engines. Toyota has also decided to temporarily suspend shipments of vehicles equipped with the affected engines. Going forward, we will provide detailed explanations to the authorities and promptly proceed with appropriate measures, including conducting testing in the presence of witnesses if appropriate.

Certification consists of having the national authorities inspect and confirm in advance that vehicles meet various standards so that customers can drive their vehicles with peace of mind. We consider the appropriate process of certification to be a major prerequisite for doing business as an automobile manufacturer. We recognize the gravity of the fact that the repeated certification irregularities at TICO, following those at Daihatsu, have shaken the very foundations of the company as an automobile manufacturer.

TICO has informed us that they will start by providing detailed explanations to authorities regarding these findings and proceed with measures under their guidance in the hopes of regaining the trust of customers and other stakeholders as a manufacturer worthy of certification.

In addition, restructuring the relevant business will require a change in the mindset of all individuals, from management to employees, as well as a drastic reform of corporate culture. Such tasks cannot be accomplished overnight. Hence, as the party responsible for transferring the diesel engine business, Toyota will continue to provide support toward the revitalization of TICO's engine business.

Furthermore, as the commissioner of these tests, we regret that we were not sufficiently attentive and aware of the fact that the procedures were not carried out in accordance with laws and regulations. Going forward, we will be involved in all company-wide activities to help rebuild TICO and review the situation to thoroughly ensure that safety and quality are the top priorities.

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