TSB N252527500 — Chevrolet Service campaign
N252527500 is a service campaign on file with NHTSA for the Chevrolet Silverado 2500, 2025–2026 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. Certain vehicles may have a condition in which the Rear Spring U-bolt fasteners are torqued below specification. Dealers are to torque both the right and left side Rear Spring U-bolt fasteners to specification.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Worth checking your VIN against. N252527500 is filed as a service campaign, which unlike an ordinary bulletin can mean free or reimbursed work when a vehicle qualifies. Ask a dealer using the document ID below, and check open recalls separately at nhtsa.gov/recalls.
Vehicles and model years N252527500 names
| Vehicle | Model years |
|---|---|
| Chevrolet Silverado 2500 | 2025, 2026 |
Every document filed under N252527500
| Document ID | Filed | Type |
|---|---|---|
| N252527500 | November 12, 2025 | Service campaign |
What N252527500 covers
Suspension — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB N252527500?
N252527500 is a service campaign filed with NHTSA by Chevrolet, covering the Chevrolet Silverado 2500 across the 2025–2026 model years. NHTSA's summary reads: Certain vehicles may have a condition in which the Rear Spring U-bolt fasteners are torqued below specification. Dealers are to torque both the right and left side Rear Spring U-bolt fasteners to specification.
Which vehicles does N252527500 cover?
NHTSA's file names Chevrolet Silverado 2500 (2025–2026). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB N252527500 a recall, and is the repair free?
N252527500 is filed as a service campaign, not a recall — but this is the kind of communication that can mean free or reimbursed work if your VIN qualifies. Take the number to a dealer and ask. Recalls are separate and always free; check yours by VIN at nhtsa.gov/recalls.
How do I get the full text of N252527500?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under N252527500, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under N252527500. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.