2023-2024 Hyundai Ioniq 5 TMK Sealant Leakage TSB

Hyundai has issued Technical Service Bulletin (TSB) 24-01-019H, also known as Service Campaign TBM, to address a potential issue with the Tire Mobility Kit (TMK) in certain 2023-2024 Hyundai Ioniq 5 (NE1) vehicles. This bulletin details procedures for inspecting and replacing parts if the TMK sealant is found to be leaking.

The Hyundai Ioniq 5 TMK sealant leakage can lead to contamination of other components both inside and outside the TMK bag. This service campaign ensures that affected vehicles are inspected and repaired to prevent further issues.

Symptoms

Owners of affected 2023-2024 Hyundai Ioniq 5 vehicles may notice sealant leakage from the Tire Mobility Kit (TMK). This leakage can contaminate the TMK bag itself or other surrounding parts, including the luggage isolation pad in the trunk area.

Diagnosis / Trigger Conditions

Technicians will perform a thorough inspection to determine if the TMK sealant is leaking. This involves opening the trunk and checking for sealant leakage near the TMK bag and the surrounding area. The inspection also includes checking the TMK bag itself for internal leakage and assessing the luggage isolation pad for any contamination.

Repair Procedure Summary

The repair procedure outlined in TSB 24-01-019H depends on the extent of the Hyundai Ioniq 5 TMK sealant leakage.

1. Initial Inspection: The technician will first inspect the trunk area and the TMK bag for any signs of sealant leakage.
2. Contaminated Luggage Isolation Pad: If the luggage isolation pad is contaminated, it will be removed and discarded. The area underneath will be inspected and cleaned. If the sealant has hardened, it may have rubber-like properties and can often be rubbed off with a dry towel. For cured sealant that doesn't easily come off, a wet towel can be used for 1-2 seconds before rubbing it off. However, prolonged contact with a wet towel should be avoided as it can spread contamination.
3. Leakage Inside TMK Bag: If sealant leakage is found inside the TMK bag, the entire TMK & Tool Set will be replaced.
4. No Leakage or External Contamination Only: If no sealant leakage is found, or if the leakage is limited to external contamination of the luggage isolation pad (which is then replaced), only the TMK Sealant Cap will be replaced.
5. Installation and Verification: New parts will be installed, and the new sealant cap will be tightened securely. Technicians will verify that the cap is not crooked and check for leaks. Repair validation photos (STUI) of the replaced parts, including the VIN and repair date, are required to be uploaded.

Required Tools or Parts

Depending on the inspection findings, the following parts may be required for the repair:

• TMK Sealant Cap Kit: Part Number 09131-N1001QQH (includes zip bag, yellow cap, and instruction pamphlet). This is used if no sealant leakage is found, or if only the cap needs replacement.
• TMK & Tool Set: Part Number 09130-G1300QQH. This is used if there is contamination inside the sealant bag or if leakage occurs outside the bag.
• Pad Assy-Luggage Isolation (with woofer speakers): Part Number 85703-G1500. This is used if the luggage isolation pad is contaminated and the vehicle has woofer speakers.
• Pad Assy-Luggage Isolation (without woofer speakers): Part Number 85703-G1000. This is used if the luggage isolation pad is contaminated and the vehicle does not have woofer speakers.

Important Warnings

Hyundai emphasizes several critical points regarding this service campaign:

• Dealers must perform this service campaign on all affected vehicles prior to customer retail delivery. It must also be performed whenever an affected vehicle is in the shop for any maintenance or repair.
• This service campaign, identified as 24-01-019H, can only be performed at IONIQ certified dealers.
• When replacing the sealant cap, technicians are advised to