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Service bulletin CBR-2131 202308

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10241914
Published by NHTSA2023-09-06
Manufacturer's numberCBR-2131 202308
Manufacturer's date2023-08-14
NHTSA componentENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM

NHTSA's summary

CBR: Intermittent Diagnostic Trouble Codes U02A3,U029D, U029E - USE FOR NEW VEHICLES (US21+OBD22 Emissions)

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, Engine

Trouble codes named

U029D, U029E, U02A3

Vehicles listed
MACK ANTHEM (AN)2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
MACK GRANITE (GR)2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
MACK GRANITE (GU)2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
MACK LR2021, 2022, 2023
MACK PINNACLE (CHU)2021, 2022 (the catalog's model; the bulletin names a series or trim of it)
MACK PINNACLE (CXU)2021, 2022 (the catalog's model; the bulletin names a series or trim of it)
MACK PINNACLE (PI/PN)2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
MACK TE2021
MACK TERRAPRO (MRU)2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
MACK TERRAPRO (TE)2022, 2023 (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.

Recalls for the same vehicles and component
26V1390002026-03-11. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE
24V7920002024-10-23. ELECTRICAL SYSTEM:SOFTWARE; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
20236302023-11-22. Electrical
20230212023-01-24. Electrical

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
TSB M-913-001 2026092026-10-02. Service bulletin. Parker engine-mounted hydraulic pump service bulletin.
CBR 159 2026082026-09-01. 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
M0039 0320262026-04-02. Emissions. Emissions - EC0039 MST21 Failure to Detect P20EE - AN, CHU.
CBR 2712-7 0320262026-04-02. Service bulletin. CBR - No Start Condition After Over the Air Programing.
CBR 2128-7 2026012026-02-03. Service bulletin. CBR - Engine Control Module (EMS) Software Information - Improvement List (Change Log), US21+OBD2021 Emissions ONLY
CBR 2107-22 2026012026-02-02. Service bulletin. CBR - Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions to US22+OBD2023 (DOES NOT APPLY TO AN(4) and PR(4)).
CBR 199 2025122026-01-05. Service bulletin. Vehicles affected by this issue will show coolant runoff on the front rights side of the engine.
CBR 2495-4 2025112025-12-03. Service bulletin. CBR - Carb 24 Phase 1 - 48V Diagnostics Guide.
CBR 2171-11 2025112025-12-03. Service bulletin. CBR - Mack Temperature Sensor Troubleshooting Guide
CBR 199-6 2025112025-12-03. Service bulletin. CBR - 13 Liter Engines ONLY - Engine Coolant Pump Housing Leak; Coolant Found Around The Oil Cooler Duct Cover Or In Between The Coolant Pump Housing And Oil Cooler Housing.