TSB 21-042-26 — Jeep Service bulletin
21-042-26 is a service bulletin on file with NHTSA for 2 Jeep models, 2021–2025 model years, filed and re-filed as 2 documents. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. Not applicable to vehicles built for US market. 1.5L Transmission Diagnosis Service Solution Customers may experience one or more of the following: SYMPTOM: ● Transmission warning light on and/or vehicle jerking. ● Vehicle is not shifting correctly or has no traction. This…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years 21-042-26 names
| Vehicle | Model years |
|---|---|
| Jeep Compass | 2021, 2022, 2023, 2024, 2025 |
| Jeep Renegade | 2021, 2022, 2023 |
Every document filed under 21-042-26
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 |
|---|---|---|
| 21-042-26 REV. A | June 30, 2026 | Service bulletin |
| 21-042-26 | May 28, 2026 | Service bulletin |
What 21-042-26 covers
Transmission & drivetrain — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB 21-042-26?
21-042-26 is a service bulletin filed with NHTSA by Jeep, covering 2 Jeep models across the 2021–2025 model years. NHTSA's summary reads: Not applicable to vehicles built for US market. 1.5L Transmission Diagnosis Service Solution Customers may experience one or more of the following: SYMPTOM: ● Transmission warning light on and/or vehicle jerking. ● Vehicle is not shifting correctly or has no traction. This…
Which vehicles does 21-042-26 cover?
NHTSA's file names Jeep Compass (2021–2025); Jeep Renegade (2021–2023). 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 21-042-26 a recall, and is the repair free?
No. 21-042-26 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 21-042-26?
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 21-042-26, 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 21-042-26. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.