Some 2014-2015 Lexus IS250/IS350 and 2016 IS200T/IS300 and IS350 vehicles may exhibit a rattle type noise from the rear parking brake assemblies when driving over bumps.
Adjust the parking brake (refer to the service manual). Make sure that the No. 1 wire adjusting nut is completely loose during adjustment. This will ensure that there is no gap between the shoe and anchor inside the parking brake assembly. If a gap is present, a rattle noise may occur.
Road test to confirm.
If the rattle is still present, remove the parking brake shoes and parking brake shoe lever sub-assembly.
Clean up the parking brake shoes, lever sub-assembly and backing plate.
Apply disc brake grease to the areas of the parking brake plate, which makes contact with the shoe and anchor block sub-assembly.
Road test to confirm the repair.
Clean and apply disc brake grease to the areas of the plate that make contact with the shoe and anchor block.
About the Author
Information courtesy of Mitchell 1
Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.
Mike Mavrigian
Motor Age Editor
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.