Service bulletins for the 2026 Mack LR
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
8 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Transmission and driveline are shown. Show all
| CBR 2573-1 202604 | 2026-05-05. Service bulletin. POWER TRAIN. CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers. |
|---|---|
| CBR 2362-3 202604 | 2026-05-04. Service bulletin. POWER TRAIN. CBR - Mack Carrier Nut Adhesive Change. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.