Jeep Grand Wagoneer 2024–2026 — technical service bulletin
Bulletin 9100768 · NHTSA communication 11029689 · issued Feb 16, 2026
Technical service bulletin
communication type
Electrical System
component
2024–2026
model years
6
vehicle entries
Official summary
If the Power Liftgate (PLG) does not operate following battery drainage or when DTCs B2199-16 or B21DD-16 are active, perform the following steps: 1. Verify Battery Voltage: Ensure battery voltage is at nominal value (minimum 12.5 V). Charge the battery, if necessary before proceeding. 2. Confirm Low Voltage DTCs: After charging, verify that any low battery voltage DTCs are stored. 3. Check PLGM Proxi Alignment: 4. If PLGM is not aligned: - Perform Proxi Alignment - Reset the module - Perform module recalibration. 5. If Proxi Is Correct: - Reset the module. - Perform module calibration. 6. Dia
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.