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: Body and frame are shown. Show all
| CBR 2575-1 202604 | 2026-05-05. Service bulletin. STRUCTURE:BODY; UNKNOWN OR OTHER. CBR - Mack Chassis - Dash Panel Cracking at Mounting to BIW. |
|---|---|
| CBR 2432-2 202601 | 2026-02-03. Service bulletin. STRUCTURE:BODY; VISIBILITY/WIPER. CBR - Mack Chassis - AN And GR Models - Door Glass Shattering. |
| CBR 70-8 202505 | 2025-06-02. Service bulletin. STRUCTURE:BODY. Lack of lateral structural hood support. |
| CBR-2384 202407 | 2024-08-01. Service bulletin. STRUCTURE:BODY. CBR: Mack Chassis - Day Cab Glass Breakage |
| CBR-2384 202406 | 2024-07-03. Service bulletin. STRUCTURE:BODY; VISIBILITY/WIPER; UNKNOWN OR OTHER. CBR - Mack Chassis - Day Cab Glass Breakage |
| CBR-2016 202401 | 2024-02-02. Service bulletin. STRUCTURE; SUSPENSION. CBR: Frame Or Cab Lean |
| M-700-001 | 2023-05-03. Service bulletin. STRUCTURE. TSB: Frame Flange Relief Cut-out Templates with 105 millimeter Frame Flanges |
| KC-70 | 2021-12-07. Service bulletin. STRUCTURE:BODY:HOOD; STRUCTURE. Mack Chassis - Model GR/GU - Hood Warpage |
| KC-8 | 2021-11-05. Service bulletin. STRUCTURE. (Back Office Only) Mack Chassis - Granite Models (GR) - Body Raised Out Of Position Message Not Dislaying In Driver Information Display - INT-GEN2 |
| KC-70 | 2021-08-02. Service bulletin. STRUCTURE. Mack Chassis - Model GR/GU - Hood Warpage |
| KC-70 | 2021-04-05. Service bulletin. STRUCTURE. Mack Chassis - Model GR/GU - Hood Warpage |
| S7552 | 2021-02-01. Service bulletin. EQUIPMENT:OTHER:LABELS; STRUCTURE:BODY:DOOR. Incorrect Data on Door Label Set |
| K31126441 | 2020-06-03. Service bulletin. STRUCTURE:BODY:HOOD. Diagnostic Trouble Code (DTC) P2042-01: Diagnostic Instructions - US17+OBD16 Emissions And Newer |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.