Federal regulators are investigating Mercedes-Benz over whether it was too slow to mail out notices for a recall of 1.4 million cars in 2017.
The National Highway Traffic Safety Administration sent the German carmaker a 14-page letter asking it to explain why customers weren’t informed of the recall within the federally mandated time period.
The US arm of Mercedes-Benz “omitted critical information about the problem for which a recall decision was made, or details about its recall plans,” according to the letter.
