U.S. automakers will rest on some of the broad tariffs imposed by Donald Trump.

Yet, even with new exemptions, the prospects for the longest-lived automaker in the U.S. remain cloudy, GM said it was “reevaluating” its earnings guidance on Tuesday given the uncertainty impact on tariffs.

A White House spokesman confirmed that automakers that pay tariffs on imported cars that take effect this month will not be forced to pay other duties Trump has already performed, such as those on steel and aluminum.

However, the exemption is retroactive, which means that the company must first pay the duties and then apply for reimbursement.

In addition, U.S. automakers will be eligible for reimbursement of tariffs on foreign-made auto parts that will take effect on Saturday, May 3. These reimbursements will equal 3.75% of the value of a U.S.-made car, then drop to 2.5% of the value of a second year, then place it in Altogeroge, and then lower.

The new break is first reported by the Wall Street Journal.

The White House said the change reflects cooperation between the government and the automotive industry.

"President Trump is building important partnerships with domestic automakers and our great American workers," Commerce Secretary Howard Lutnick said in a statement. "This deal is a major victory for the president's trade policy, which is by rewarding companies that manufacture domestically while providing a runway to manufacturers that have expressed their commitment to investing in the United States and expanding their domestic manufacturing industry."

Automakers praised the new stance. Ford said, “Welcome President Trump’s decisions and appreciate them, which will help mitigate the impact of tariffs on automakers, suppliers and consumers.”

General Motors CEO Mary Barra said the company “thanks President Trump for his support to the U.S. auto industry and millions of Americans who rely on us.

"We believe that the president's leadership is providing a competitive environment for companies like General Motors and allowing us to invest more in the U.S. economy," Barra said in a statement. "We appreciate the productive dialogue with the president and his administration and look forward to continuing to work together."

Stellantis, a company that owns Dodge, Ram and Jeep, said it appreciates Trump's "tariff relief measures."

"While we further evaluate the impact of tariff policies on North American operations, we look forward to continuing to work with the U.S. government to strengthen the competitive U.S. auto industry and stimulate exports," it said.

But GM warned Tuesday that the impact of automatic tariffs on financial conditions could still be "important" and therefore, "reevaluate" its guidance as it awaits "greater clarity."

"Previous guidance cannot be relied on, and we will be able to return to the market clearly after we have one," the company said.

When the market opened, GM shares fell about 2%.

General Motors CFO Paul Jacobson declined to disclose tariffs starting April 3, including the levy of 25% of imported vehicles, which has so far lost the Detroit automaker's fees. The company also transferred its revenue calls with investors to Thursday.

Given that automakers will have to file for reimbursement, the new arrangement still raises potential cash flow issues for the company. According to the way the reimbursement policy is implemented, U.S. customers may also face higher costs.

Although new cars have remained stable in recent quarters, they could rise as tariffs begin to take effect and stocks are sold “pre-order”.

Keating told Kelley Blue Book that the price has risen 10% to 15%.