Post by
excel_novice »
https://forums.nicoclub.com/excel-novice-u293407.html
Sat Oct 22, 2022 8:14 pm
i vaguely remember Indiana Jones say something like...Brakes. Why did it have to be brakes?
anyway, the update from the NHTSA is....
Remedy
Dealers will replace the hydraulic brake booster supply unit, free of charge. Interim Owner notification letters were mailed September 22, 2022. A second letter will be mailed October 31, 2022. Nissan's number for this recall is R22A6.
edit...i was just on the sight looking for details, and heres what's happening.
Due to the low heat capacity of the motor, certain driving conditions such as repeated
brake application (stop and go traffic) combined with high temperatures in the engine
room, can cause the brush temperature to increase inside the motor pump housing. If the
temperature exceeds the allowable range, lubricity deteriorates which can cause sparking
due to brush and commutator chatter that results in abnormal commutator wear.
This abnormal wear may lead to brush vibration, causing the pigtail to bend repeatedly and
disconnect, leading to a decrease in brake assist output. If brake assist output drops below
a predetermined level, the red brake system warning indicator will illuminate and the driver
will receive an audible buzzer. If the driver continues to operate the vehicle, the driver may
begin to experience a change in brake pedal travel and feel, and increased pedal effort.
Although the vehicle braking system will continue to function, the brake assist output may
not meet certain performance requirements specified in S7.5 and S7.6 of FMVSS 135; Light
vehicle brake systems. Reduced brake assist may result in increased stopping distance,
which can increase the risk of a crash.