TSB N242454441-01 — Chevrolet and GMC Service campaign
N242454441-01 is a service campaign on file with NHTSA for 6 Chevrolet and GMC models, 2020–2022 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 transmission control valve has worn, resulting in a gradual loss of pressure within the valve. The effects can cause harsh shifting, setting a service engine soon message, reduced engine performance or P0747…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Worth checking your VIN against. N242454441-01 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 N242454441-01 names
| Vehicle | Model years |
|---|---|
| Chevrolet Silverado 1500 | 2020, 2021, 2022 |
| Chevrolet Silverado 2500 | 2020, 2021, 2022 |
| Chevrolet Suburban | 2021, 2022 |
| Chevrolet Tahoe | 2021, 2022 |
| GMC Sierra 1500 | 2020, 2021, 2022 |
| GMC Yukon | 2021, 2022 |
Every document filed under N242454441-01
| Document ID | Filed | Type |
|---|---|---|
| N242454441-01 | December 12, 2024 | Service campaign |
What N242454441-01 covers
Transmission & drivetrain — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB N242454441-01?
N242454441-01 is a service campaign filed with NHTSA by Chevrolet and GMC, covering 6 Chevrolet and GMC models across the 2020–2022 model years. NHTSA's summary reads: Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve. The effects can cause harsh shifting, setting a service engine soon message, reduced engine performance or P0747…
Which vehicles does N242454441-01 cover?
NHTSA's file names Chevrolet Silverado 1500 (2020–2022); Chevrolet Silverado 2500 (2020–2022); Chevrolet Suburban (2021–2022); Chevrolet Tahoe (2021–2022); GMC Sierra 1500 (2020–2022); GMC Yukon (2021–2022). 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 N242454441-01 a recall, and is the repair free?
N242454441-01 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 N242454441-01?
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 N242454441-01, 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 N242454441-01. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.