# Service bulletin 08\-128\-21

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: 10218557
- Published by NHTSA: 2022\-08\-22
- Manufacturer's number: 08\-128\-21
- Manufacturer's date: 2021\-08\-05
- NHTSA component: SEATS

## NHTSA's summary

Flash: Memory Seat Module \- Driver \(MSMD\) Updates This bulletin involves reprogramming the MSMD with the latest available software. Customers may experience the following: Drivers massage seats do not recall lumbar and bolster position when profile selected on radio \(Recall from door switches and keyfob work as expected\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10218557-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10218557-9999.pdf)

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

## Components

Seats

## Vehicles listed

- 2021 JEEP GRAND CHEROKEE

## Recalls for the same vehicles and component

- [2022136](/recalls/tc/2022136.md), 2022-03-24: Seats And Restraints
- [22V180000](/recalls/nhtsa/22V180000.md), 2022-03-24: SEATS:CRITICAL FASTENERS; CHILD SEAT:VEHICLE TETHER ANCHOR

## Other bulletins for the same vehicles and component

- [08\-274\-26](/bulletins/11035048.md), 2026-07-18, Service bulletin: ELECTRICAL SYSTEM; SEATS. Power Folding Seat Wire Harness Pinched Customers may experience one or more of the following: SYMPTOM: ● Battery is depleted. NOTE: Battery depletion may be due to a pinched power folding seat wire harness behind the left quarter panel by the cargo tie down fastener. ● Loss of function of the rear folding seats. ● Rear folding seat behavior is not functioning as expected. This bulletin involves repairing a pinched power folding seat wire harness behind the left quarter panel.
- [S2608000015](/bulletins/11030266.md), 2026-03-25, Service bulletin: ELECTRICAL SYSTEM; SEATS. Memory Seat Does Not Work There Is No Response from The Seat While Pressing the Memory Seat Profiles from the Switch Diagnostic Trouble Code \(DTC\) B1D9B\-54\- Seat Horizontal Front Stop Not Learned\-Missing Calibration
- [109157](/bulletins/11026813.md), 2025-12-23, Service bulletin: SEATS. ARMREST \- REAR DOOR TRIM
- [S2123000084 REV.A](/bulletins/11015023.md), 2025-03-05, Service bulletin: SEATS. 1st Row Seat Belt Retractor D\-Ring Is Binding And Not Able To Rotate
- [S2310000003](/bulletins/11012378.md), 2025-01-07, Service bulletin: SEATS. The customer may experience an airbag light on or seat belt chime when buckled.
- [101790](/bulletins/11012358.md), 2025-01-06, Service bulletin: SEATS. BUCKLE ASSY \- BUCKLE ASSYS/BELT
- [9100448](/bulletins/11011512.md), 2024-12-05, Service bulletin: SEATS. HEADREST Incoming Vehicles with Deployed Active Head Rest \(AHR\) should have a through enquiry. If there is no Broken Pieces or Electrical failure, Direction to follow the RESET Procedure in service Library to RESET the AHR
- [S2423000041 REV.A](/bulletins/11007981.md), 2024-09-24, Service bulletin: SEATS. 2nd Row Seat Is Hard To Put Back In Position After Moving It Forward To Access The 3rd row seat.
- [S2423000041](/bulletins/11007712.md), 2024-09-11, Service bulletin: SEATS. 2 nd Row Seat Is Hard To Put Back In Position After Moving It Forward To Access The 3rd row seat.
- [S2423000036](/bulletins/11006212.md), 2024-08-09, Service bulletin: SEATS. Third Row Upper Seat Back Handle Inoperative And Or Cables Disconnected.

JSON: [/v1/bulletins/10218557](/v1/bulletins/10218557)

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