2023 Hyundai Elantra TMK Sealant Leakage TSB 24-01-042H

Hyundai has released Technical Service Bulletin (TSB) 24-01-042H, also identified as Service Campaign TBR, to address a potential issue with the Tire Mobility Kit (TMK) in certain 2023 Hyundai Elantra models. This bulletin highlights that some vehicles may experience sealant leakage from the TMK, which could contaminate other parts both inside and outside the TMK bag. Owners of affected vehicles should be aware of this potential problem.

The TSB provides a detailed procedure for inspecting the TMK for leakage and outlines the necessary steps for parts replacement based on the inspection findings. This ensures that any instances of Hyundai Elantra TMK sealant leakage are properly resolved.

Symptoms

The primary symptom of this issue is sealant leakage from the Tire Mobility Kit (TMK). This leakage might be visible inside or outside the TMK bag, potentially contaminating surrounding components in the trunk area. Owners may notice a sticky residue or a hardened substance in the vicinity of the TMK.

Fault Codes / DTCs

This service bulletin does not mention any specific diagnostic trouble codes (DTCs) associated with the TMK sealant leakage. The issue is identified through visual inspection rather than electronic fault detection.

What the Service Bulletin Says

Hyundai Technical Service Bulletin 24-01-042H outlines a comprehensive inspection and repair process for the Hyundai Elantra TMK sealant leakage. Dealers are instructed to perform this service campaign on all affected vehicles prior to customer retail delivery and whenever an affected vehicle is brought in for maintenance or repair.

The procedure involves inspecting the TMK for sealant leakage. If no leakage is found, only the TMK Sealant Cap (part number 09131-N1001QQH) needs to be replaced. If leakage is detected only inside the plastic bag containing the TMK, the TMK Sealant itself should be replaced. The specific part numbers for the TMK Sealant are 52932-AA300QQH for 17-inch wheels and 52932-AA200QQH for 16-inch wheels.

In cases where sealant has leaked outside the plastic bag, indicating more extensive contamination, both the TMK Sealant and the TMK Kit Case (part number 09149-AA950QQH) must be replaced. The bulletin also provides operational codes for warranty claims, such as 40D016R2, 40D016R3, 40D016R4, 40D016R5, and 40D016R6, depending on the repair performed.

What to Do

If you own a 2023 Hyundai Elantra N or Elantra Hybrid within the specified production dates, it is recommended to contact your authorized Hyundai dealer. They can check if your vehicle is covered by Service Campaign 24-01-042H and perform the necessary inspection and repairs for any Hyundai Elantra TMK sealant leakage.

This is a proactive measure to prevent contamination and ensure the proper function of your vehicle's Tire Mobility Kit. Ensure you mention TSB 24-01-042H when scheduling your service appointment.

Source: NHTSA ID: 11000941