TSB 2028902 — Audi Service bulletin
2028902 is a service bulletin on file with NHTSA for 3 Audi models, 2012–2015 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. This bulletin provides informaiton when the transmission warning message appears in the cluster; P074100 stored in the TCM.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years 2028902 names
| Vehicle | Model years |
|---|---|
| Audi A4 | 2012, 2013, 2014, 2015 |
| Audi Q5 | 2012, 2013, 2014, 2015 |
| Audi Q7 | 2012, 2013, 2014, 2015 |
Every document filed under 2028902
| Document ID | Filed | Type |
|---|---|---|
| TSB_2028902_5 | June 23, 2026 | Service bulletin |
What 2028902 covers
Transmission & drivetrain — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB 2028902?
2028902 is a service bulletin filed with NHTSA by Audi, covering 3 Audi models across the 2012–2015 model years. NHTSA's summary reads: This bulletin provides informaiton when the transmission warning message appears in the cluster; P074100 stored in the TCM.
Which vehicles does 2028902 cover?
NHTSA's file names Audi A4 (2012–2015); Audi Q5 (2012–2015); Audi Q7 (2012–2015). 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 2028902 a recall, and is the repair free?
No. 2028902 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 2028902?
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 2028902, 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 2028902. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.