White House Accuses Mexico of Masking Chinese Car Components

White House Trade and Manufacturing Advisor Peter Navarro has accused Mexico of acting as a staging platform for Chinese automotive components entering the United States. Writing in a column published by The Hill, Navarro alleged that vehicles assembled in Mexico under the USMCA contain high percentages of Chinese-manufactured parts misrepresented as North American content.

The allegations arrive days before a bilateral review meeting between US and Mexican officials scheduled for July 20 in Mexico City, where delegates will address unresolved trade issues, regional content rules, and tariffs. The meeting follows the US government’s decision on July 1 to decline the renewal of the USMCA in its current form, electing instead to limit the agreement to a 10-year term subject to annual reviews due to perceived structural flaws.

According to Navarro, Chinese trade strategists adapted to the tariffs imposed by the administration of President Donald Trump by halting the direct export of completed vehicles to US ports. Instead, manufacturers are routing industrial inputs through Mexico to bypass established customs duties.

"They can send electronic components, batteries, magnets, semiconductors, sensors, displays, and subassemblies to Mexico, where they are transformed, assembled, and shipped north inside nominally North American vehicles. The more complex the vehicle, the more possibilities there are to hide Chinese components," Navarro stated.

Navarro cited data from a recent report submitted to Congress by US Trade Representative Jamieson Greer. The report highlights that the domestic US component share within vehicles assembled in Mexico and Canada fell from more than 60% in 2017 to 35% in 2024. The document concluded that the original USMCA guidelines intended to enforce strict regional content percentages, raise labor value incentives, and secure North American supply chains have failed to achieve their targets.

"USMCA was supposed to increase US content. Instead, Mexican assembly has increasingly become a platform through which Chinese and other foreign content leaks into the US market," Navarro wrote.

According to the trade representative's report, the US trade deficit with Mexico within the automotive and auto parts sector expanded from US$91.9 billion in 2019 to approximately US$130 billion annually. Navarro cited these figures as the principal justification for the structural revision of the agreement.

"On July 1, the United States refused to renew the USMCA in its current form. The treaty's loopholes and deficiencies in the automotive sector, which must be corrected through negotiations, are one of the main reasons for this decision," Navarro said.

The White House advisor further stated that existing US tariffs have altered corporate manufacturing strategies, pointing to Toyota Motor Corporation's recent relocation of its Tacoma pickup truck production line from Mexico to Bexar County, Texas. US tariffs reportedly offset Toyota’s North American profit margins for the 2026 fiscal year, resulting in a US$1.9 billion operating loss in the region. Toyota estimated the cumulative financial impact of the tariffs at approximately US$9 billion.

"Toyota has not formally stated that the Trump tariffs prompted their move. Moving production destined for the United States to US territory is a viable solution for Toyota to reduce its tariff bill, a cost that, evidently, it cannot pass on to US consumers," Navarro said.

Navarro defended the broader implementation of import duties as an effective tool for re-shoring manufacturing infrastructure. "They modify the price signal," Navarro said. "They make it less attractive to export US demand to foreign factories and more attractive to manufacture where it is sold. And with the Trump tariffs, that means manufacturing right here in the United States."

Under current trade terms, automotive imports from Mexico face a 25% tariff, excluding verified US-origin content. A 25% tariff also applies to automotive parts, except for items fully compliant with USMCA criteria. Medium and heavy vehicles incur a 25% tariff unless they possess a specific USMCA permit or exceed 25 years of age, while imported buses are subject to a 10% tariff rate.