Service bulletins for the 1989 Mack RM
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.
22 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Electrical system are shown. Show all
| KC-2112 | 2022-07-05. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; ENGINE AND ENGINE COOLING. Programming Failure - Chassis With Cummins Engine And An Allison Transmission |
|---|---|
| KC-2172 | 2022-06-07. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. No Start Condition After Over The Air Programing - VECU5 No Start "Safe State" |
| KC-2169 | 2022-06-07. Service bulletin. ELECTRICAL SYSTEM. Low Voltage Disconnect (LVD), Function Description |
| KC-699 | 2022-06-07. Service bulletin. ELECTRICAL SYSTEM. Mack Chassis - Bendix Vendor Configuration Program ( VCP ) Software Download Information |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.