RoadVitals

2025 Oshkosh S-Series

Recalls, owner-reported complaints, investigations and safety data

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
0
Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
1
Latest Apr 10, 2025
InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
0
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
0

Overview

Our database contains no NHTSA owner-reported complaints for the 2025 Oshkosh S-Series. 1 safety recall has been issued covering this model year; and 11 manufacturer communications are on file.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Safety recalls

1 campaign cover this model year

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov
25V228000

POWER TRAIN:AXLE ASSEMBLY

Apr 10, 2025
469 units potentially affected
The defect: Oshkosh Corporation (Oshkosh) is recalling certain 2024-2025 S-Series vehicles. The front axle housing wall thickness may not be sufficient and can cause the axle to fail.
The risk: Front axle failure can cause a sudden loss of vehicle handling and control, increasing the risk of a crash.
The remedy: Oshkosh will inspect and replace the front axles as necessary, free of charge. Owner notification letters were mailed on May 30, 2025. Owners may contact Oshkosh customer service at 1-833-304-8100.
Oshkosh CorporationView on NHTSA.gov

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

No owner complaints recorded for this model year

Either none have been filed with NHTSA, or this vehicle is too new for reports to have accumulated.

Manufacturer communications

A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.

FDM-SVC-045

ELECTRICAL SYSTEM

This bulletin provides instructions to install the latest battery disconnect switch on S-Series 2.0 vehicles in serial number range 788727 - 814085.

FDM-SVC-044

This bulletin provides instructions to install a check valve in the chute return hydraulic circuit to prevent fluid back flow through the chute manifold if a chute up or down hose fails, and install a shut-off valve on the fan manifold to turn off flow of hydraulic oil to the chutes and water pump.

FDM-IB-013

This bulletin provides instruction for replacing the existing chute drive washer with a hardened steel washer. This change prolongs the service life of the drive sprocket and chute operation.

FDM-IB-011

ELECTRICAL SYSTEM; ENGINE

This bulletin provides information on verifying powertrain harness grounds are correctly installed, and covers the installation of an optional engine ground cable.

FDM-IB-011

ENGINE

This bulletin provides information on making sure the dedicated ground from the battery negative to the engine block ground stud remains installed when a powertrain harness is replaced. Service personnel have found instances of this ground cable not being reconnected when a powertrain harness has been replaced, this dedicated ground MUST be installed as it was when the vehicle left the factory. Failure to keep the dedicated ground installed could lead to engine failure over time.

FDM-TSB-005

This bulletin provides instructions for installing a longer hydraulic hose between the auxiliary pump and the hydraulic manifold load sense port, and a straight fitting to the hydraulic manifold load sense port to reduce pressure spikes. The longer hose provides additional hydraulic fluid volume between the auxiliary pump and hydraulic manifold and acts as an accumulator for the load sense auxiliary pump function.

Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Compare model years

Complaint and recall counts across every year of this model

Oshkosh S-Series by model year
YearComplaintsRecallsInvestigationsIssue Index
2025Viewing010—
2024020—
2023010—
2022050—
2021070—
2020070—
2019060—
2018030—
2017020—
2016030—
2015040—
2014050—
2013030—
2012020—
2011000—
2010000—
2009000—
2008010—
2007110—
2006020—
2005020—
2000110—
1999010—
1998010—
1997010—
1995010—
1994010—
1993010—
1992010—
1991020—
1990010—
1989010—
1988020—
1987020—
1986020—
1985030—
1984040—
1983030—
1982010—
1981010—
1980010—
1979010—
1978010—

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.