Service bulletins for the 2021 Mack Granite
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.
225 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Glass, wipers and mirrors are shown. Show all
| CBR 2432-2 202601 | 2026-02-03. Service bulletin. STRUCTURE:BODY; VISIBILITY/WIPER. CBR - Mack Chassis - AN And GR Models - Door Glass Shattering. |
|---|---|
| CBR-2432 202501 | 2025-02-04. Service bulletin. VISIBILITY/WIPER. This CBR solution provides detailed instructions for diagnosing and addressing window glass shattering issues, including replacement specifications, interference checks, fastener verification, and reinforcement tab adjustments to ensure proper installation and functionality. |
| CBR-2384 202406 | 2024-07-03. Service bulletin. STRUCTURE:BODY; VISIBILITY/WIPER; UNKNOWN OR OTHER. CBR - Mack Chassis - Day Cab Glass Breakage |
| M-371-004 | 2023-01-03. Service bulletin. EQUIPMENT:ELECTRICAL; VISIBILITY/WIPER. TBS- Jumper Harness,Wiper Motor,Replacement |
| FSB 801-004 | 2020-11-01. Service bulletin. VISIBILITY. Cab Door Glass Bracket, Installation |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.