TSB 22-NA-074 — Buick, Cadillac, Chevrolet, GMC, Pontiac and Saturn Service bulletin
22-NA-074 is a service bulletin on file with NHTSA for 34 Buick, Cadillac, Chevrolet, GMC, Pontiac and Saturn models, 2000–2011 model years, filed and re-filed as 4 documents. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years 22-NA-074 names
Every document filed under 22-NA-074
Manufacturers re-issue a bulletin as the repair changes, and file separate copies for technicians and for owners. All of them carry the same number.
| Document ID | Filed | Type |
|---|---|---|
| 22-NA-074 | January 30, 2025 | Service bulletin |
| 22-NA-074 | February 22, 2024 | Service bulletin |
| 22-NA-074 | November 9, 2022 | Service bulletin |
| 22-NA-074 | March 31, 2022 | Service bulletin |
What 22-NA-074 covers
Engine — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB 22-NA-074?
22-NA-074 is a service bulletin filed with NHTSA by Buick, Cadillac, Chevrolet, GMC, Pontiac and Saturn, covering 34 Buick, Cadillac, Chevrolet, GMC, Pontiac and Saturn models across the 2000–2011 model years. NHTSA's summary reads: This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
Which vehicles does 22-NA-074 cover?
NHTSA's file names Buick Enclave (2011); Cadillac CTS (2003–2004, 2011); Cadillac Escalade (2000–2004); Cadillac SRX (2004); Chevrolet Avalanche (2002–2004); Chevrolet Aveo (2004–2006, 2011); Chevrolet Blazer (2000–2004); Chevrolet Camaro (2000–2002); Chevrolet Cobalt (2000, 2002); Chevrolet Colorado (2004, 2011), and 24 more vehicles listed on this page. 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 22-NA-074 a recall, and is the repair free?
No. 22-NA-074 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 22-NA-074?
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 22-NA-074, 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 22-NA-074. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.