TSB: MACK AC, ANTHEM (AN), CHU, CXU, GRANITE (GR), GU, LEU, LR, MRU, PINNACLE (PI), TD, TERRAPRO (TE), VAH, VHD, VN, VT, WC, WG, WI, WX, WXLL (2017–2020)

Bulletin K53580514 — January 6, 2020

Bulletin Details

Bulletin IDK53580514
ManufacturerMACK
ModelsAC, ANTHEM (AN), CHU, CXU, GRANITE (GR), GU, LEU, LR, MRU, PINNACLE (PI), TD, TERRAPRO (TE), VAH, VHD, VN, VT, WC, WG, WI, WX, WXLL
Model Years2017–2020
Date IssuedJanuary 6, 2020
Date Added to NHTSAJanuary 13, 2020
ComponentSERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:DRUM
Vehicles Affected53 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

Brake Drum Inspection - Checking Runout, Wear, And Other Characteristics

Affected Vehicles

MakeModelYearComponent
MACK ANTHEM (AN) 2020 350000 EQUIPMENT
MACK ANTHEM (AN) 2020 356000 EQUIPMENT ADAPTIVE/MOBILITY
MACK ANTHEM (AN) 2020 060000 ENGINE (PWS)
MACK GRANITE (GR) 2020 350000 EQUIPMENT
MACK GRANITE (GR) 2020 356000 EQUIPMENT ADAPTIVE/MOBILITY
MACK GRANITE (GR) 2020 060000 ENGINE (PWS)
MACK LR 2020 060000 ENGINE (PWS)
MACK LR 2020 350000 EQUIPMENT
MACK LR 2020 356000 EQUIPMENT ADAPTIVE/MOBILITY
MACK PINNACLE (PI) 2020 060000 ENGINE (PWS)
MACK PINNACLE (PI) 2020 356000 EQUIPMENT ADAPTIVE/MOBILITY
MACK PINNACLE (PI) 2020 350000 EQUIPMENT
MACK TERRAPRO (TE) 2020 350000 EQUIPMENT
MACK TERRAPRO (TE) 2020 356000 EQUIPMENT ADAPTIVE/MOBILITY
MACK TERRAPRO (TE) 2020 060000 ENGINE (PWS)
MACK TD 2019 350000 EQUIPMENT
MACK TD 2019 356000 EQUIPMENT ADAPTIVE/MOBILITY
MACK TD 2019 060000 ENGINE (PWS)
MACK CHU 2018 356000 EQUIPMENT ADAPTIVE/MOBILITY
MACK CHU 2018 350000 EQUIPMENT
MACK CHU 2018 060000 ENGINE (PWS)
MACK CXU 2018 350000 EQUIPMENT
MACK CXU 2018 356000 EQUIPMENT ADAPTIVE/MOBILITY
MACK CXU 2018 060000 ENGINE (PWS)
MACK GU 2018 060000 ENGINE (PWS)
MACK GU 2018 356000 EQUIPMENT ADAPTIVE/MOBILITY
MACK GU 2018 350000 EQUIPMENT
MACK MRU 2018 356000 EQUIPMENT ADAPTIVE/MOBILITY
MACK MRU 2018 060000 ENGINE (PWS)
MACK MRU 2018 350000 EQUIPMENT
MACK LEU 2017 350000 EQUIPMENT
MACK LEU 2017 356000 EQUIPMENT ADAPTIVE/MOBILITY
MACK LEU 2017 060000 ENGINE (PWS)
VOLVO AC 034430 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:DRUM
VOLVO AC 044000 SERVICE BRAKES, AIR:DRUM
VOLVO VAH 044000 SERVICE BRAKES, AIR:DRUM
VOLVO VAH 034430 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:DRUM
VOLVO VHD 044000 SERVICE BRAKES, AIR:DRUM
VOLVO VHD 034430 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:DRUM
VOLVO VN 044000 SERVICE BRAKES, AIR:DRUM
VOLVO VN 034430 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:DRUM
VOLVO VT 034430 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:DRUM
VOLVO VT 044000 SERVICE BRAKES, AIR:DRUM
VOLVO WC 044000 SERVICE BRAKES, AIR:DRUM
VOLVO WC 034430 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:DRUM
VOLVO WG 044000 SERVICE BRAKES, AIR:DRUM
VOLVO WG 034430 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:DRUM
VOLVO WI 034430 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:DRUM
VOLVO WI 044000 SERVICE BRAKES, AIR:DRUM
VOLVO WX 034430 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:DRUM
VOLVO WX 044000 SERVICE BRAKES, AIR:DRUM
VOLVO WXLL 034430 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:DRUM
VOLVO WXLL 044000 SERVICE BRAKES, AIR:DRUM

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 (K53580514) 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.