TSB: MACK ANTHEM (AN), GRANITE (GR), GRANITE (GU), GU, LR, MACK, MRU, PINNACLE (CHU), PINNACLE (CXU), PINNACLE (PI), R, TERRAPRO (LEU/MRU), TERRAPRO (TE), VAH, VHD, VN, VNL, VNR, VNX (2013–2019)

Bulletin K94743326 — February 12, 2019

Bulletin Details

Bulletin IDK94743326
ManufacturerMACK
ModelsANTHEM (AN), GRANITE (GR), GRANITE (GU), GU, LR, MACK, MRU, PINNACLE (CHU), PINNACLE (CXU), PINNACLE (PI), R, TERRAPRO (LEU/MRU), TERRAPRO (TE), VAH, VHD, VN, VNL, VNR, VNX
Model Years2013–2019
Date IssuedFebruary 12, 2019
Date Added to NHTSAMay 20, 2019
ComponentENGINE AND ENGINE COOLING:ENGINE
Vehicles Affected61 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

Diagnostic Trouble Code (DTC) P009B-13 Fuel Pressure Relief Control - Circuit Open; Possible Derate - US17+OBD16 and Newer Emissions

Affected Vehicles

MakeModelYearComponent
MACK ANTHEM (AN) 2019 080000 FUEL SYSTEM, DIESEL
MACK GRANITE (GR) 2019 080000 FUEL SYSTEM, DIESEL
MACK GRANITE (GU) 2019 080000 FUEL SYSTEM, DIESEL
MACK LR 2019 080000 FUEL SYSTEM, DIESEL
MACK PINNACLE (CHU) 2019 080000 FUEL SYSTEM, DIESEL
MACK PINNACLE (CXU) 2019 080000 FUEL SYSTEM, DIESEL
MACK PINNACLE (PI) 2019 080000 FUEL SYSTEM, DIESEL
MACK TERRAPRO (LEU/MRU) 2019 080000 FUEL SYSTEM, DIESEL
MACK TERRAPRO (TE) 2019 080000 FUEL SYSTEM, DIESEL
VOLVO VAH 2019 070000 FUEL SYSTEM, GASOLINE
VOLVO VHD 2019 070000 FUEL SYSTEM, GASOLINE
VOLVO VNL 2019 070000 FUEL SYSTEM, GASOLINE
VOLVO VNR 2019 070000 FUEL SYSTEM, GASOLINE
VOLVO VNX 2019 070000 FUEL SYSTEM, GASOLINE
VOLVO VNX 2019 110000 ELECTRICAL SYSTEM
VOLVO VNX 2019 070000 FUEL SYSTEM, GASOLINE
MACK ANTHEM (AN) 2018 080000 FUEL SYSTEM, DIESEL
MACK GRANITE (GR) 2018 080000 FUEL SYSTEM, DIESEL
MACK GU 2018 080000 FUEL SYSTEM, DIESEL
MACK LR 2018 080000 FUEL SYSTEM, DIESEL
MACK MRU 2018 080000 FUEL SYSTEM, DIESEL
MACK PINNACLE (CHU) 2018 080000 FUEL SYSTEM, DIESEL
MACK PINNACLE (CXU) 2018 080000 FUEL SYSTEM, DIESEL
MACK PINNACLE (PI) 2018 080000 FUEL SYSTEM, DIESEL
MACK TERRAPRO (LEU/MRU) 2018 080000 FUEL SYSTEM, DIESEL
MACK TERRAPRO (TE) 2018 080000 FUEL SYSTEM, DIESEL
VOLVO VAH 2018 070000 FUEL SYSTEM, GASOLINE
VOLVO VHD 2018 070000 FUEL SYSTEM, GASOLINE
VOLVO VNL 2018 070000 FUEL SYSTEM, GASOLINE
VOLVO VNR 2018 070000 FUEL SYSTEM, GASOLINE
VOLVO VNX 2018 070000 FUEL SYSTEM, GASOLINE
VOLVO VNX 2018 070000 FUEL SYSTEM, GASOLINE
VOLVO VNX 2018 110000 ELECTRICAL SYSTEM
VOLVO VNX 2017 110000 ELECTRICAL SYSTEM
VOLVO VNX 2017 070000 FUEL SYSTEM, GASOLINE
VOLVO VNX 2016 110000 ELECTRICAL SYSTEM
VOLVO VNX 2016 070000 FUEL SYSTEM, GASOLINE
VOLVO VNX 2015 070000 FUEL SYSTEM, GASOLINE
VOLVO VNX 2015 110000 ELECTRICAL SYSTEM
VOLVO VNX 2014 110000 ELECTRICAL SYSTEM
VOLVO VNX 2014 070000 FUEL SYSTEM, GASOLINE
VOLVO VNX 2013 110000 ELECTRICAL SYSTEM
VOLVO VNX 2013 070000 FUEL SYSTEM, GASOLINE
MACK LR 073100 FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL
MACK LR 061000 ENGINE AND ENGINE COOLING:ENGINE
MACK MACK 070000 FUEL SYSTEM, GASOLINE
MACK R 061000 ENGINE AND ENGINE COOLING:ENGINE
MACK R 073100 FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL
VOLVO VAH 070000 FUEL SYSTEM, GASOLINE
VOLVO VAH 110000 ELECTRICAL SYSTEM
VOLVO VAH 070000 FUEL SYSTEM, GASOLINE
VOLVO VHD 070000 FUEL SYSTEM, GASOLINE
VOLVO VHD 110000 ELECTRICAL SYSTEM
VOLVO VHD 070000 FUEL SYSTEM, GASOLINE
VOLVO VN 070000 FUEL SYSTEM, GASOLINE
VOLVO VNL 070000 FUEL SYSTEM, GASOLINE
VOLVO VNL 110000 ELECTRICAL SYSTEM
VOLVO VNL 070000 FUEL SYSTEM, GASOLINE
VOLVO VNR 070000 FUEL SYSTEM, GASOLINE
VOLVO VNR 110000 ELECTRICAL SYSTEM
VOLVO VNR 070000 FUEL SYSTEM, GASOLINE

Related MACK Recalls

CampaignModelYearComponentSummary
ANTHEM AN (4) 2026 SERVICE BRAKES, AIR:ANTILOCK:CONTROL ... Mack Trucks, Inc. (Mack) is recalling certain 2025-2027 Pioneer (4) and 2026-...
ANTHEM AN (4) 2027 SERVICE BRAKES, AIR:ANTILOCK:CONTROL ... Mack Trucks, Inc. (Mack) is recalling certain 2025-2027 Pioneer (4) and 2026-...
PIONEER PR (4) 2025 SERVICE BRAKES, AIR:ANTILOCK:CONTROL ... Mack Trucks, Inc. (Mack) is recalling certain 2025-2027 Pioneer (4) and 2026-...
PIONEER PR (4) 2026 SERVICE BRAKES, AIR:ANTILOCK:CONTROL ... Mack Trucks, Inc. (Mack) is recalling certain 2025-2027 Pioneer (4) and 2026-...
PIONEER PR (4) 2027 SERVICE BRAKES, AIR:ANTILOCK:CONTROL ... Mack Trucks, Inc. (Mack) is recalling certain 2025-2027 Pioneer (4) and 2026-...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized MACK dealer. Bring this bulletin ID (K94743326) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.