Kia K4: Air bag - Advanced Supplemental Restraint System / Air bag warning and indicator

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Air bag warning light

The airbag warning light located on your Kia K4 instrument panel is designed to alert you to any potential faults within your Supplemental Restraint System (SRS), including the sensors for the side and curtain airbags utilized for rollover protection.

SRS Airbag system warning light icon display on the Kia K4 dashboard

If the airbag warning light fails to extinguish after more than 6 seconds when you turn the ENGINE START/STOP button to the ON position, or if it illuminates unexpectedly while you are operating your Kia K4, this indicates that an SRS component may not be functioning correctly. In such an event, you should have your Kia K4 inspected immediately by an authorized Kia dealer.

A malfunction in the airbag system is indicated if any of the following conditions occur. Please arrange for an authorized Kia dealer to perform a comprehensive diagnostic inspection as soon as possible:

  • The warning light does not illuminate briefly as a system check when you turn the ENGINE START/STOP button to the ON position.

  • The light remains illuminated after the initial 3–6 second system self-check period has concluded.

  • The light activates or flashes while the Kia K4 is in motion.

  • The light blinks or exhibits erratic behavior when you turn the ENGINE START/STOP button to the ON position.

Other information:

Kia K4 (CL4) 2025-2026 Owner's Manual: Limitations of Smart Cruise Control

While the Smart Cruise Control (SCC) system in your Kia K4 is engineered to provide an advanced and comfortable driving experience, its performance can be significantly affected by external environmental factors, sensor conditions, and specific driving scenarios. Please be aware that the Smart Cruise Control may operate abnormally or unexpectedly under the following circumstances: The front detection sensor or the areas immediately surrounding it are contaminated, covered by debris, or physically damaged.

Kia K4 (CL4) 2025-2026 Owner's Manual: Lane Keeping Assist (LKA)

When operating your Kia K4 at speeds above a certain threshold, the Lane Keeping Assist (LKA) system actively monitors road lane markings and edges. Designed to enhance your driving experience, Lane Keeping Assist can provide proactive steering assistance to help prevent your Kia K4 from unintentionally drifting out of its lane. Furthermore, the system is engineered to provide an alert if it detects that the vehicle is departing from its lane without the driver engaging the turn signal.

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