EPA puts a nail in the coffin of auto's start-stop systems that 'everyone hates'

The Environmental Protection Agency announced an end Thursday to credits to automakers who install automatic start-stop ignition systems in their vehicles, a device intended to reduce emissions that EPA Administrator Lee Zeldin said “everyone hates.”

Start-stop is a technology that automatically shuts down a vehicle’s engine when a driver comes to a complete stop, and then automatically restarts the engine when the driver takes their foot off the brake pedal. Developed in response to the 1970s oil crisis, the feature was intended to cut vehicle idling, fuel consumption and emissions.

In remarks Thursday at the White House, Zeldin called start-stop technology the “Obama switch” and said it makes vehicles “die” at every red light and stop sign. He said the credits, which also applied to options like improved air conditioning systems, are now “over, done, finished.”

“Countless Americans passionately despise the start/stop feature in cars,” Zeldin wrote in a post on X on Tuesday teasing the announcement. “So many have spoken out against this absurd start-stop-start-stop-start-stop concept.”

The announcement made good on Zeldin’s promises last year to “fix” the feature. Start-stop is “where your car dies at every red light so companies get a climate participation trophy,” Zeldin said in a post on X last May. “EPA approved it, and everyone hates it, so we’re fixing it,” he wrote at the time.

Start-stop systems — which are mostly useful for city driving — are said by critics to add faster wear and tear to vehicle starters and batteries, for a too-small benefit of improved gas economy.

About two-thirds of vehicles now have it, according to the Society of Automotive Engineers. Start-stop also causes a split-second lag in acceleration, a point of irritation for some consumers and automotive enthusiasts.

Although not required to implement the systems, most automakers did so to earn credits toward meeting federal emissions reduction rules.

Jeep-maker Stellantis welcomes the deregulatory effort, a spokesperson’s statement said: “We remain supportive of a rational, achievable approach on fuel economy standards that preserves our customers’ freedom of choice.”

A Ford Motor Co. statement said: “We appreciate the work of President Trump and Administrator Zeldin to address the imbalance between current emissions standards and customer choice.”


(AP Photo David Zalubowski)