to stop the vehicle electronically. Information on other types of failure remain an open question. Industry recognition In 2001 the μ-Club, an association of international experts in the field of brake technology, honored Robert Bosch and Daimler Chrysler for the development of the electrohydraulic brake SBC. Problems In May 2004, Mercedes recalled 680,000 vehicles equipped with the system; in March 2005 a total of 1.3 million vehicles were recalled. In 2006 high-volume models such as the E-class returned to conventional hydraulic brake systems. Low-volume luxury models such as the SL, the Maybach and the SLR continued to use SBC due to the prohibitive cost of redesign. In a letter - only to US customers - dated August 2018 a warranty addendum was sent extending coverage for 25 years and unlimited miles on the following SBC components. Hydraulic control unit Hydraulic Pump Pressure Reservoir Brake Operating Unit Front and Rear wheel speed sensors Brake lamp switch Yaw Rate Sensor Out of warranty repairs of these items can be reimbursed by MB if proper documentation is provided. Sensotronic Brake Control applications 2003–2006 E-Class (W211) SLR Maybach 2003–2006 Mercedes-Benz CLS-Class (W219) 2001–2011 SL-Class Other production electro-hydraulic brake systems Toyota Prius (Introduced in 1997; uses an ehb system from Advics) Toyota Estima Hybrid (Introduced in 2001 in Japan) Ford Escape Hybrid (Introduced in 2003) Acura NSX, 2nd generation (Introduced in 2015) Audi e-tron (Introduced in 2018) References Vehicle braking technologies