Correct answer
Anti-lock braking system.
The anti-lock braking system. It uses wheel-speed sensors and modulates braking pressure to prevent wheel lock during braking, helping preserve steering ability. It is an active-safety aid but does not replace appropriate speed or following distance or guarantee avoiding every crash. It is not central door locking.
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Central door-locking system.
Cabin climate-control system.
Anti-lock braking system.
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