# Service bulletin 2101321

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10221676
- Published by NHTSA: 2022\-09\-26
- Manufacturer's number: 2101321
- Manufacturer's date: 2021\-07\-17
- NHTSA component: EXTERIOR LIGHTING; POWER TRAIN; ELECTRICAL SYSTEM

## NHTSA's summary

Flash: Transmission Control Module \(TCM\) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience the following on a vehicle with less than 644 km \(400 miles\) on the odometer: A Malfunction Indicator Lamp \(MIL\) event or failure withnoDiagnostic Trouble Codes \(DTCs\) and the vehicle has less than 644 km \(400 miles\) on the odometer indicates it is likely the vehicle has experienced an unintentional code clear event. Do not use this software update if vehicle odometer has over 644 km \(400 miles\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10221676-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10221676-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Lighting, Transmission and driveline

## Vehicles listed

- 2021 JEEP GLADIATOR

## Recalls for the same vehicles and component

- [24V652000](/recalls/nhtsa/24V652000.md), 2024-09-05: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [24V572000](/recalls/nhtsa/24V572000.md), 2024-08-01: POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE:SOFTWARE
- [2023089](/recalls/tc/2023089.md), 2023-02-23: Powertrain
- [23V116000](/recalls/nhtsa/23V116000.md), 2023-02-23: POWER TRAIN:CLUTCH ASSEMBLY
- [2021035](/recalls/tc/2021035.md), 2021-01-28: Powertrain
- [21V028000](/recalls/nhtsa/21V028000.md), 2021-01-28: POWER TRAIN:CLUTCH ASSEMBLY

## Other bulletins for the same vehicles and component

- [S2621000004](/bulletins/11038329.md), 2026-10-07, Service bulletin: POWER TRAIN. The Customer May Complain About a Popping Noise, Grinding Noise, or an Intermittent No Reverse or Forward Transmission Engagement. The Tech May Find Damaged and/or Worn Transmission Output Shaft Splines \(850RE Transmission Only\)
- [9100900](/bulletins/11037346.md), 2026-09-17, Service bulletin: ELECTRICAL SYSTEM; STRUCTURE:BODY. Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
- [16C Combo Rev3](/bulletins/11036183.md), 2026-08-13, Warranty extension: ELECTRICAL SYSTEM. EMISSION RECALL – NORTH AMERICA Check Engine/Malfunction Indicator Lamp 16C The instrument panel cluster on about 32,587 of the above vehicles may have an inoperable check engine/malfunction indicator lamp \(CEL/MIL\). \(JT\) vehicles: CEL/MIL and cargo lamp indicator function are swapped. \(JL\) vehicles: CEL/MIL will not turn on. The CEL/MIL in and of itself will not affect emissions. However, if there was an emission issue that would require illumination of the CEL/MIL, the customer would not be alerted. The vehicle would be non\-compliant to the OBD II regulation.
- [112862](/bulletins/11034372.md), 2026-07-02, Service bulletin: ELECTRICAL SYSTEM. MOTOR \- BLOWER WITH WHEEL
- [112863](/bulletins/11034371.md), 2026-07-02, Service bulletin: ELECTRICAL SYSTEM. MOTOR \- BLOWER WITH WHEEL
- [9100835](/bulletins/11033957.md), 2026-06-18, Service bulletin: ELECTRICAL SYSTEM. Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
- [S2623000040](/bulletins/11033896.md), 2026-06-16, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. Passive Entry Exterior Door Handle Inoperative When Touched To Lock And Or Unlock.
- [111760](/bulletins/11033882.md), 2026-06-16, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. MOTOR AND LINKAGE \- WINDSHIELD WIPER
- [08\-208\-26 REV. A](/bulletins/11032842.md), 2026-05-20, Service bulletin: ELECTRICAL SYSTEM. Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub \(no charging, no data\). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle.
- [08\-208\-26](/bulletins/11032824.md), 2026-05-20, Service bulletin: ELECTRICAL SYSTEM. Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub \(no charging, no data\). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle

JSON: [/v1/bulletins/10221676](/v1/bulletins/10221676)

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