TSB PIP4902U — Buick, Cadillac, Chevrolet, GMC, Pontiac and Saturn Service bulletin
PIP4902U is a service bulletin on file with NHTSA for 36 Buick, Cadillac, Chevrolet, GMC, Pontiac and Saturn models, 2010–2024 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 a dealer on how to email GDS2 session logs into Technical Assistance.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years PIP4902U names
Every document filed under PIP4902U
| Document ID | Filed | Type |
|---|---|---|
| PIP4902U | January 8, 2026 | Service bulletin |
Questions buyers ask
What is TSB PIP4902U?
PIP4902U is a service bulletin filed with NHTSA by Buick, Cadillac, Chevrolet, GMC, Pontiac and Saturn, covering 36 Buick, Cadillac, Chevrolet, GMC, Pontiac and Saturn models across the 2010–2024 model years. NHTSA's summary reads: This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
Which vehicles does PIP4902U cover?
NHTSA's file names Buick Enclave (2010–2023); Buick LaCrosse (2010–2019); Cadillac CTS (2010–2019); Cadillac Escalade (2010–2020); Cadillac SRX (2010–2016); Chevrolet Avalanche (2010–2013); Chevrolet Aveo (2010–2011); Chevrolet Blazer (2019–2022); Chevrolet Bolt EV (2017–2023); Chevrolet Camaro (2010–2024), and 26 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 PIP4902U a recall, and is the repair free?
No. PIP4902U 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 PIP4902U?
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 PIP4902U, 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 PIP4902U. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.