Definition of differential lock in English:

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differential lock

noun

A device that disables the differential of a motor vehicle in slippery conditions to improve grip.
Example sentences
  • This system serves as the differential lock on manual transmission models.
  • The traction control interacts with an electronic differential lock to provide effective yaw control, and brake pressure can be applied to all four wheels if necessary to correct excessive under steer.
  • An electrical switch transfers the box to low range but the differential lock can be activated manually by the driver.
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