Normal operation

The ABS operates at speeds above 3 to 6 MPH (5 to 10 km/h).
When the ABS senses that one or more wheels are close to locking up, the actuator rapidly applies and releases hydraulic pressure. This action is similar to pumping the brakes very quickly. You may feel a pulsation in the brake pedal and hear a noise from under the hood or feel a vibration from the actuator when it is operating. This is normal and indicates that the ABS is operating properly. However, the pulsation may indicate that road conditions are hazardous and extra care is required while driving.
See also:
Reporting safety defects
For USA
If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA ...
Infiniti Drive
The M's throttle sensitivity and transmission mapping are fine tuned
according to which of four driver-selectable modes is engaged via a switch
positioned behind the gear lever: Standard, Eco, Spo ...
Snow tires
If snow tires are needed, it is necessary to select tires equivalent in size and load rating to the original equipment tires. If you do not, it can adversely affect the safety and handling of your veh ...
