Technical Service Bulletin 21-010-26 — 2026 RAM 3500
POWER TRAIN
Bulletin Details
| TSB ID | 21-010-26 |
| Manufacturer | |
| Vehicle | 2026 RAM 3500 |
| Component | POWER TRAIN |
| Communication Date |
Bulletin Summary
Flash: Transmission Control Module (TCM) Updates Customers may also experience one or more of the following: ● Customer is unable to switch the ignition to OFF when in Park gear. ● After shifting into Park, the Instrument Panel Cluster (IPC) will display that the transmission is in Neutral. NOTE: The transmission will actually be in Park and able to hold the vehicle, but the cluster display would indicate Neutral, preventing the engine from shutting off. This bulletin involves inspecting and possibly reprogramming the TCM with the latest available software.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2026 RAM 3500
S268A000006
ELECTRICAL SYSTEM
08-056-26
ELECTRICAL SYSTEM
110082
SERVICE BRAKES
08-033-26
ELECTRICAL SYSTEM
18-011-26
ELECTRICAL SYSTEM
S2609000001
UNKNOWN OR OTHER
21-005-26
POWER TRAIN
21-008-26
POWER TRAIN
S2525000003
UNKNOWN OR OTHER
18-102-25
UNKNOWN OR OTHER