TSB PIT-4722 — Chevrolet Service bulletin
PIT-4722 is a service bulletin on file with NHTSA for the Chevrolet Avalanche, 2000–2001 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. GMC: FLUID LEAK FROM TRANSMISSION OIL COOLER LINES DUE TO CORROSION. ALL 2000-2006 LIGHT DUTY TRUCKS EQUIPPED WITH THE LIGHT DUTY AUTOMATIC TRANSMISSION.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years PIT-4722 names
| Vehicle | Model years |
|---|---|
| Chevrolet Avalanche | 2000, 2001 |
Every document filed under PIT-4722
| Document ID | Filed | Type |
|---|---|---|
| PIT-4722 | October 1, 2008 | Service bulletin |
What PIT-4722 covers
Transmission & drivetrain — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB PIT-4722?
PIT-4722 is a service bulletin filed with NHTSA by Chevrolet, covering the Chevrolet Avalanche across the 2000–2001 model years. NHTSA's summary reads: GMC: FLUID LEAK FROM TRANSMISSION OIL COOLER LINES DUE TO CORROSION. ALL 2000-2006 LIGHT DUTY TRUCKS EQUIPPED WITH THE LIGHT DUTY AUTOMATIC TRANSMISSION.
Which vehicles does PIT-4722 cover?
NHTSA's file names Chevrolet Avalanche (2000–2001). 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 PIT-4722 a recall, and is the repair free?
No. PIT-4722 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.
How do I get the full text of PIT-4722?
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 PIT-4722, 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 PIT-4722. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.