TSB N252494003 — Cadillac, Chevrolet and GMC Service campaign
N252494003 is a service campaign on file with NHTSA for 6 Cadillac, Chevrolet and GMC models, 2021–2024 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. Certain vehicles listed above, may have a condition where the connecting rod and/or crankshaft engine components in these vehicles may have manufacturing defects that can lead to engine damage and engine failure. This special coverage covers if an engine failure occurs in the…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Worth checking your VIN against. N252494003 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 N252494003 names
| Vehicle | Model years |
|---|---|
| Cadillac Escalade | 2021, 2022, 2023, 2024 |
| Chevrolet Silverado 1500 | 2021, 2022, 2023, 2024 |
| Chevrolet Suburban | 2021, 2022, 2023, 2024 |
| Chevrolet Tahoe | 2021, 2022, 2023, 2024 |
| GMC Sierra 1500 | 2021, 2022, 2023, 2024 |
| GMC Yukon | 2021, 2022, 2023, 2024 |
Every document filed under N252494003
| Document ID | Filed | Type |
|---|---|---|
| N252494003 | May 23, 2025 | Service campaign |
What N252494003 covers
Engine — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB N252494003?
N252494003 is a service campaign filed with NHTSA by Cadillac, Chevrolet and GMC, covering 6 Cadillac, Chevrolet and GMC models across the 2021–2024 model years. NHTSA's summary reads: Certain vehicles listed above, may have a condition where the connecting rod and/or crankshaft engine components in these vehicles may have manufacturing defects that can lead to engine damage and engine failure. This special coverage covers if an engine failure occurs in the…
Which vehicles does N252494003 cover?
NHTSA's file names Cadillac Escalade (2021–2024); Chevrolet Silverado 1500 (2021–2024); Chevrolet Suburban (2021–2024); Chevrolet Tahoe (2021–2024); GMC Sierra 1500 (2021–2024); GMC Yukon (2021–2024). 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 N252494003 a recall, and is the repair free?
N252494003 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 N252494003?
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 N252494003, 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 N252494003. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.