ation collected. The NPRM also would require that AEB systems detect malfunctions and provide a warning to the vehicle operator in the event of any system malfunction. However, NHTSA is not proposing a specific AEB malfunction indicator telltale.NHTSA requests comments on the following additional topics:Proposed three- and four-year lead timesAlternatives to the no-contact criterion for lead vehicle and pedestrian performance tests and the permissible collision speed to prevent serious injuries and fatalitiesWhether and how NHTSA could finalize a rule without AEB and PAEB false activation test requirementsModes of driver warnings, malfunction indicator for the AEB system, and display options, including warnings in the instrument panel versus a head-up displaySufficiency of proposed test track and performance test constants (including test mannequins and vehicles) to address the risks for real-world pedestrian crash scenariosComments on the NPRM are due by August 14, 2023.References188 Fed. Reg. 38632 (June 13, 2023).[View source.]