Telsa Motors issued a recall notice on Thursday called “Tesla To Do House Calls.” These house calls involve the Tesla technicians to the 345 owners of the now-infamous Tesla Roadsters to check whether their “rear, inner hub flange bolts” are properly torqued. All the Roadsters built before April 22, 2009 needs to have its engine examined.

According to Tesla, the problem was discovered after a “root-cause analysis” showed that the “uncharacteristic handling” reported by one owner was caused by improper torquing of those pesky bolts by Lotus, the Roadster’s contract manufacturer. Thus alerted, Lotus is also checking some of its Elise and Exige models.