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Reduced Effort Brakes and Reduced Effort Vacuum Powered Brake Backup Systems
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STANDARD published on 1.6.2026
Designation standards: SAE J2671
Publication date standards: 1.6.2026
SKU: NS-1276011
Country: American technical standard
Category: Technical standards SAE
This Information Report relates to a special class of automotive adaptive equipment which consists of modifications to the power brake booster systems provided as original equipment of motor vehicles. These modifications are generically called "Reduced Effort Power Brakes" (REPB) The purpose of the modification is to lower the amount of driver effort required to apply the brakes. Retention of reliability, ease of use and maintainability for disabled drivers, passengers, and the general public is of primary concern. Reduced Effort Power Brake modifications should be qualified by the tests referenced in the Recommended Test Procedure. The tests set forth in that procedure should be applied, and failure of a Reduced Effort Power Brake modification to meet those tests should disqualify the modification from the claim of meeting the specifications of this Information Report. Because this is an Information Report, the numerical values for performance measurements presented in this report and in the accompanying Test Procedure, while based upon the best knowledge available at the time, have not been validated by a testing of the Test Procedure.
SUBFILE: Automotive
TYPE OF DOCUMENT: Ground Vehicle Standard
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Latest update: 2026-07-16 (Number of items: 2 287 999)
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