Service bulletin TSB 21-2353

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	10202710
Published by NHTSA	2021-11-02
Manufacturer's number	TSB 21-2353
Manufacturer's date	2021-10-14
NHTSA component	EQUIPMENT; SEATS; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

NHTSA's summary

Some 2019-2021 Transit vehicles built on or before 11-Feb-2021 may experience a front seat cushion sagging. This may be due to a broken seat suspension mat. To correct this condition, follow the Service Procedure to install additional webbing to the seat frame.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Equipment and accessories, Labels and manuals, Seats

Vehicles listed
FORD TRANSIT	2019, 2020, 2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
25V876000	2025-12-17. EQUIPMENT ADAPTIVE/MOBILITY:WHEELCHAIR RESTRAINTS/SECUREMENT:LATCH/ANCHOR:
2023328	2023-06-05. Accessories
2021481	2021-08-04. Seats And Restraints
19V229000	2019-03-22. SEATS

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SSM 52476	2024-05-03. Service bulletin. All accessory stick-on keyless entry keypads come with a wallet card containing the master code. If the accessory keypad was factory installed, this card will be placed in the glove box and should be handed to the vehicles owner during initial delivery. Unlike the integrated (wired) factory keypad, the accessory keypad master code cannot be retrieved from the vehicle using a diagnostic scan tool. If the wallet card for an accessory keypad is lost, follow these steps to recover the code. Dealer Key Code access is granted through the Dealer Program Enrollment System (DPES); dealership management can authorize users. The authorized user must go to FMCDealer.com > Parts and Service > Parts Product Line Information > Keys/Entry Devices > Aftermarket Keyless Entry Keypad Code Access. Follow the instructions on the screen to obtain the master code for the accessory keypad.
TSB 24-2053	2024-04-03. Service bulletin. This article supersedes TSB 23-2235 to correct the Parts List and update Step 2 of the Service Procedure. Some 2019-2021 Transit vehicles built on or before 11-Feb-2021 may experience a front seat cushion sagging. The vehicle may also exhibit an illuminated air bag warning indicator with diagnostic trouble codes (DTCs) B1408, B1405, B1407, B0001, B0010 and/or B1404 stored in the restraints control module (RCM). To correct this condition, follow the Service Procedure to replace the suspension mat assembly and install additional webbing strap assemblies to the seat frame.
TSB 23-2235	2023-11-01. Service bulletin. This article supersedes TSB 22-2263 to update the Title, Issue, Action, Service Procedure, and Part List. Some 2019-2021 Transit vehicles built on or before 11-Feb-2021 may experience a front seat cushion sagging. The vehicle may also exhibit an illuminated air bag warning indicator with diagnostic trouble codes (DTCs) B1408, B1405, B1407, B0001 and/or B0010 stored in the restraints control module (RCM). To correct this condition, follow the Service Procedure to replace the suspension mat assembly and install additional webbing strap assemblies to the seat frame.
SSM 51937	2023-10-05. Service bulletin. Some vehicles equipped with power folding mirrors may exhibit power folding mirrors that are inoperative or exhibit a clicking sound. This may be due to the mirrors being manually folded in, during transportation, going through a car wash, bumped in a parking lot, or found during pre-delivery inspection (PDI). Prior to the replacement of any components, attempt to synchronize the mirrors by following the Power Mirrors Synchronization procedure. Refer to Workshop Manual (WSM) Section 501-09 Rear View Mirrors - General Procedures - Power Mirrors Synchronization.
SAN-Vol1 I1	2023-08-16. Service bulletin. The Service Awareness Newsletter is an informal communication that contains information that may not be presently available in a TSB, SSM, GSB, or other electronic communication. This article includes information on warranty, technical service tips and other service information.
SSM 51687	2023-06-16. Service bulletin. TSB 22-2428 is missing some labor operations. For any missing labor operations, claim available new model labor operations or m-time. Refer to this article on the repair order. When replacing the CDF cylinder, the current TSB does not require a complete transmission overhaul or cooler and converter flushing. Ford is currently reviewing the TSB. Monitor OASIS for updates.
22B40	2023-05-02. Service bulletin. Certain 2021 Model Year Single Rear Wheel Transit Vehicles Equipped with Aluminum Alloy Wheels Incorrect Color Wheels Installed
SSM 51449	2023-04-05. Service bulletin. Some 2020-2023 Ford and Lincoln SYNC3 equipped vehicles may experience an inaccurate notification in the FordPass®/LincolnWay® app indicating Vehicle Has Entered Deep Sleep Mode. Vehicle Has Entered Deep Sleep Mode message is expected if the vehicle has not been started for 14 consecutive days, battery voltage is at/below 9.5 volts or the body control module (BCM) 12 volt battery state of charge (SoC) drops below 50%. If the vehicle is going into deep sleep outside these conditions, this may be due to the telematics control unit (TCU) software. To correct this condition, follow the Service Procedure to update the TCU to the latest software. For claiming, use causal part 14G229 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
SSM 51265	2023-01-06. Service bulletin. Some vehicles equipped with power folding mirrors may exhibit power folding mirrors that are inoperative or exhibit a clicking sound. This may be due to the mirrors being manually folded in, during transportation, going through a car wash, bumped in a parking lot, or found during pre-delivery inspection (PDI). Prior to the replacement of any components, attempt to synchronize the mirrors by following the Power Mirrors Synchronization procedure. Refer to Workshop Manual (WSM) Section 501-09 Rear View Mirrors - General Procedures - Power Mirrors Synchronization.
TSB 22-2321	2022-08-23. Service bulletin. Some 2015-2022 Transit vehicles may experience a snap, click and/or pop noise from the door check when opening/closing the front door(s). This may be due to a cracked/broken door check and/or fastener. To correct the condition, follow the Service Procedure to inspect/replace the front door check and/or fastener.