Service bulletin K93394430
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10162592 |
| Published by NHTSA | 2019-07-15 |
| Manufacturer's number | K93394430 |
| Manufacturer's date | 2019-07-01 |
| NHTSA component | ELECTRICAL SYSTEM |
NHTSA's summary
Engine Brake - Diagnostic Trouble Code (DTC) P1021-11 Volvo Compression Brake (VCB) Control Circuit Short To Ground - US17+OBD16 Through US17+OBD19 Emissions, Model Years 2018 To 2020
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Electrical system
Trouble codes named
P1021
| MACK ANTHEM (AN) | 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
|---|---|
| MACK CHU | 2018 |
| MACK CXU | 2018 |
| MACK GRANITE (GR) | 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| MACK GRANITE (GU) | 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| MACK GU | 2018 |
| MACK MRU | 2018 |
| MACK PINNACLE (CHU) | 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| MACK PINNACLE (CXU) | 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| MACK PINNACLE (PI/PN) | 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| MACK TE | 2019 to 2020 |
| MACK TERRAPRO (TE) | 2018 (the catalog's model; the bulletin names a series or trim of it) |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 24V792000 | 2024-10-23. ELECTRICAL SYSTEM:SOFTWARE; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE |
|---|---|
| 18V152000 | 2018-03-06. INTERIOR LIGHTING; VISIBILITY:WINDSHIELD WIPER/WASHER; EXTERIOR LIGHTING; ELECTRICAL SYSTEM |
| 17V261000 | 2017-04-18. ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| CBR 159 202608 | 2026-09-01. Service bulletin. Mack Trucks Equipped With A Cummins Engine - Engine Preheat Icon Does Not Illuminate In The Instrument Cluster (IC) During Engine Pre-heat (Intake Air Heater) Operation - Vehicles With 2018Instrument Cluster Update, Model Year2018 And Newer |
|---|---|
| CBR 126 022026 | 2026-03-03. Service bulletin. CBR - The purpose of this solution is to give information on Engine Control Module (EMS) Software content. |
| CBR 2171-11 202511 | 2025-12-03. Service bulletin. CBR - Mack Temperature Sensor Troubleshooting Guide |
| CBR 407 072025 | 2025-08-04. Service bulletin. CBR - To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP file will need to downloaded. |
| CBR 2488 072025 | 2025-08-04. Service bulletin. CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication but failing to transmit GPS location data. |
| CBR 901-5 202505 | 2025-06-02. Service bulletin. Remote Control Central Door Lock, Programming; Key Fob Cannot Be Programmed Or Does Not Work After Programming - Model Year 2018 And Newer |
| CBR-2452 202503 | 2025-04-02. Service bulletin. If the vehicle door is open and the truck is in neutral, a popup message may appear on the Driver Information Display (DID) instructing the operator to shift into neutral. If this message appears while the vehicle is already in neutral, the Instrument Cluster (IC)requires a software update. |
| CBR-570 202409 | 2024-10-03. Service bulletin. CBR: US17 GHG Common Rail Fuel System Component Electrical Faults - Model Year 2017 To 2024 |
| CBR-471 202409 | 2024-10-03. Service bulletin. CBR: The procedure to eliminate the Mack Chassis "Air Restriction Light On" seen in the cluster is to confirm that the parameter YYT is set to "Enable" with Premium Tech Tool. |
| CBR-2391 202408 | 2024-09-04. Service bulletin. CBR: Diagnostic Trouble Code (DTC) U010187- Lost Communication With TECU |