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Service bulletins for the 2024 Mack Pinnacle

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.

104 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with type: Service campaign are shown. Show all

Bulletins, newest first
S4342 0220262026-03-03. Service campaign. FUEL/PROPULSION SYSTEM. SC - Mack Trucks has determined that a select group of trucks were built with an AHI Module fuel pressure sensor which does not meet our specifications.
S4558 2025062025-07-03. Service campaign. POWER TRAIN. Mack trucks has determined that certain model year 2021-2024 PI models built with 4.19 rear axle ratios could experience elevated axle oil temps under high road speeds. To correct this issue the 4.19 ratio carriers need to be swapped to 3.79 ratio carriers. Follow the instructions below to replace both carriers with new ones.
S0310 2024092024-10-04. Service campaign. ELECTRICAL SYSTEM. Service Campaign: TGW3 Non-Communication
S3284 2024082024-09-04. Service campaign. STEERING. Service Campaign: Mack trucks has determined that certain AN, GR, and PI models were built using the incorrect power steering cooler hose clamps.
S0310 2024082024-09-04. Service campaign. ELECTRICAL SYSTEM. Service Campaign: Mack trucks has determined that certain AN, GR, PI, TE, and LR model trucks built with TGW3 have stopped communicating after production.
S3949 2024062024-07-03. Service campaign. STEERING. SC - Steering Stub Shaft Hardware Replacement

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.