2021-2026 Jeep Wrangler/Gladiator Door Hem Corrosion Repair
This newsletter provides important updates for 2021-2026 Jeep Wrangler and Gladiator owners regarding door hem aluminum body panel corrosion repair, warranty claim procedures, and other key service bulletins. Notably, door corrosion should now be repaired, not replaced.

Si applica anche a
- Jeep Gladiator
- 2021–2026
- Jeep Wrangler
- 2021, 2022, 2023, 2025, 2026
Important Update for Jeep Door Hem Corrosion Repair
Owners of 2021-2026 Jeep Wrangler (JL) and 2021-2026 Jeep Gladiator (JT) vehicles should be aware of a significant change in the repair procedure for door hem aluminum body panel corrosion. Previously, these doors might have been replaced. However, the latest guidance indicates that these doors "should no longer be replaced. They can be repaired." This updated instruction applies to filiform corrosion and refinishing the Hem Flange area on the front and rear inner doors. For more detailed information, technicians are directed to Collision TSB 31-001-26.
Updated Warranty Claim Technician Selection Instructions
New guidelines are in place for selecting Technician Identification during warranty claim submissions. Dealers can "NO LONGER select 'NONE'" from the dropdown menu. For in-house body shop repairs, including filiform corrosion, a valid "Body Shop Technician MUST be selected" from the Technician Identification dropdown. If repairs are completed outside the dealership or at an Independent Repair Facility (IRF), "SUBLET" "MUST be selected" as the Technician Identification. All other repairs require a valid Technician from the dealership to be selected.
Recall Collateral Damage Claim Process Changes
Two new buttons, related to "Recall Collateral Damage," have been added to the DealerCONNECT Service tab and the Warranty Information Center (WIC). It is crucial to note that "These buttons are ONLY to be used for Recall Collateral Damage." Dealers have been incorrectly using these buttons for general warranty and warranty extension repairs. For these types of claims, the "LOP Related Inquiry" button on the DealerCONNECT Service tab or WIC should be used instead. The button names are being updated to clarify their specific purpose, changing from "Collateral Damage" to "Recall Collateral Damage."
Warranty Policy for Unsupported Gaskets with OE Engines
Effective March 2, 2026, a change in warranty claim policy will impact situations where an Original Equipment (OE) engine is used for a warranty repair when a remanufactured engine is available. Previously, such claims were adjusted based on the part price difference. This adjustment will now also apply to any gasket kits and other parts included with a remanufactured engine, as gaskets are typically included with reman engines.
Other 2026 Warranty Bulletin Highlights
The newsletter also highlights several other important bulletins for 2026:
- D-26-01: Addition of the 8HP75 8-Speed Automatic Transmission to the Powertrain Service Center (PTSC) Pre-Approval Program.
- D-26-02: Addition of the PentaStar 3.6L Upgrade Long Block or Complete Engine to the PTSC Pre-Approval Program.
- D-26-03: Addition of the 2.0L T4 Long Block or Complete Engine to the PTSC Pre-Approval Program.
- D-26-04: Addition of the 68RFE Transmission to the PTSC Pre-Approval Program.
- D-26-05: Technical Training Requirements for Message Codes TT9, TT7, TT6, and TT5.
- D-26-06: Updates for the (XU1) High Voltage Battery Pack in select 2021-2025 Jeep Wrangler (JL) and 2022-2026 Jeep Grand Cherokee/Grand Cherokee (WL) models.
Source: NHTSA ID: 11029692
Galleria
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Frequently Asked Questions
- What is the new procedure for door hem corrosion on my Jeep Wrangler or Gladiator?
- For 2021-2026 Jeep Wrangler (JL) and Gladiator (JT) models, door hem aluminum body panel corrosion should now be repaired instead of replaced, as per Collision TSB 31-001-26.
- What are the new rules for selecting a technician for warranty claims?
- Dealers can "NO LONGER select 'NONE'" for Technician Identification. A valid Body Shop Technician must be selected for in-house body repairs, "SUBLET" for independent repair facilities, and a valid dealership technician for all other repairs.
- Can I use the "Recall Collateral Damage" button for all warranty claims?
- No, the "Recall Collateral Damage" buttons are "ONLY to be used for Recall Collateral Damage." For other warranty or warranty extension repairs, you should use the "LOP Related Inquiry" button.
- How does the new policy affect warranty claims for OE engines with unsupported gaskets?
- Starting March 2, 2026, if an OE engine is used for a warranty repair when a remanufactured option is available, adjustments will now include gasket kits and other parts that would typically come with a remanufactured engine.
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