AI DamageOshkosh S-Series: problems, complaints, bulletins
Summary for the Oshkosh S-Series across 10 model years: 0 owner complaints and 49 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 56 |
| Equipment | 0 | 0 | 39 |
| Powertrain | 0 | 0 | 24 |
| Engine | 0 | 0 | 14 |
| Structure | 0 | 0 | 8 |
| Suspension | 0 | 0 | 8 |
| Fuel system | 0 | 0 | 7 |
| Steering | 0 | 0 | 3 |
| Engine and cooling | 0 | 0 | 1 |
| Parking brake | 0 | 0 | 1 |
| Service brakes | 0 | 0 | 1 |
| Wheels | 0 | 0 | 1 |
| Other | 0 | 0 | 68 |
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- This bulletin provides instructions for the inspection, weld repair, and installation of reinforcement…
- This bulletin provides instructions for the inspection, weld repair, and installation of reinforcement…
- This bulletin provides instructions for identifying and locating all driveline grease zerk fittings
- This bulletin provides instruction for replacing the existing chute drive washer with a hardened steel washer
- This bulletin provides instructions to install a check valve in the chute return hydraulic circuit to…
- This bulletin provides instructions to install the latest battery disconnect switch on S-Series 2.0…
- This bulletin provides information on verifying powertrain harness grounds are correctly installed, and…
- This bulletin provides instructions for removing an inoperative vehicle TCU
- This bulletin provides guidance on a new torque procedure for securing the fuel tank to prevent tank rotation
- This bulletin provides instructions for installing a longer hydraulic hose between the auxiliary pump and…
- This bulletin provides information on making sure the dedicated ground from the battery negative to the…
- This bulletin provides information on installing metal door linkage rod clips in place of original plastic…
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.