TSB PIT5578E — Chevrolet and GMC Service bulletin
PIT5578E is a service bulletin on file with NHTSA for 2 Chevrolet and GMC models, 2018–2020 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. This preliminary information advises technicians the heater hose clamps are one time use only.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years PIT5578E names
| Vehicle | Model years |
|---|---|
| Chevrolet Equinox | 2018, 2019, 2020 |
| GMC Terrain | 2018, 2019, 2020 |
Every document filed under PIT5578E
| Document ID | Filed | Type |
|---|---|---|
| PIT5578E | August 27, 2025 | Service bulletin |
Questions buyers ask
What is TSB PIT5578E?
PIT5578E is a service bulletin filed with NHTSA by Chevrolet and GMC, covering 2 Chevrolet and GMC models across the 2018–2020 model years. NHTSA's summary reads: This preliminary information advises technicians the heater hose clamps are one time use only.
Which vehicles does PIT5578E cover?
NHTSA's file names Chevrolet Equinox (2018–2020); GMC Terrain (2018–2020). 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 PIT5578E a recall, and is the repair free?
No. PIT5578E 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 PIT5578E?
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 PIT5578E, 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 PIT5578E. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.