Hyundai Tucson: General Information

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Restraint / General Information

Please read the following precautions carefully before performing the airbag system service.

Observe the instructions described in this manual, or the airbags could accidentally deploy and cause damage or injuries.

  • Except when performing electrical inspections, always turn the ignition switch OFF and disconnect the negative cable from the battery, and wait at least three minutes before beginning work.


The contents in the memory are not erased even if the ignition switch is turned OFF or the battery cables are disconnected from the battery.

  • Use the replacement parts which are manufactured to the same standards as the original parts and quality.

    Do not install used SRS parts from another vehicle. Use only new parts when making SRS repairs.

  • Carefully inspect any SRS part before you install it. Do not install any part that shows signs of being dropped or improperly handled, such as dents, cracks or deformation.

  • Before removing any of the SRSCM parts (including the disconnection of the connectors), always disconnect the SRSCM connector.


 Airbag Handling and Storage

Do not disassemble the airbags; it has no serviceable parts. Once an airbag has been deployed, it cannot be repaired or reused. For temporary storage of the air bag during sendee, please observe the following precautions. Store the removed

 Wiring Precautions

SRS wiring can be identified by special yellow outer covering Observe the instructions described in this section. Never attempt to modify, splice, or repair SRS wiring. If there is an open or damage in SRS wiring, replace the harness.

 Warning Lamp Activation

Warning Lamp Behavior after Ignition On As soon as the operating voltage is applied to the SRSCM ignition input, the SRSCM activates the warning lamp for a LED lamp check. The lamp shall turn on for 6 seconds during the initialization phase an


 Engine oil

Checking the engine oil level Engine oil is used for lubricating, cooling, and operating various hydraulic components in the engine. Engine oil consumption while driving is normal, and it is necessary to check and refill the engine oil regularl

 Battery Module Inlet Duct

Turn ignition switch OFF and disconnect the battery (-) terminal. Remove the 48V battery assembly (Refer to 48V Battery System - "Repair procedures") Remove the battery cover (A) after loosening the mounting bolts. Tightening