TSB: MACK ANTHEM, ANTHEM (AN), CHU, CXU, GRANITE (GR), GRANITE (GU), GU, LEU, LR, MRU, PINNACLE (CHU), PINNACLE (CXU), PINNACLE (PI), TD, TERRAPRO (LEU), TERRAPRO (LEU/MRU), TERRAPRO (MRU), TERRAPRO (TE), TITAN, TITAN (TD), VAH, VHD, VN (2007–2024)

Bulletin KC-2229-Ver2 — May 10, 2023

Bulletin Details

Bulletin IDKC-2229-Ver2
ManufacturerMACK
ModelsANTHEM, ANTHEM (AN), CHU, CXU, GRANITE (GR), GRANITE (GU), GU, LEU, LR, MRU, PINNACLE (CHU), PINNACLE (CXU), PINNACLE (PI), TD, TERRAPRO (LEU), TERRAPRO (LEU/MRU), TERRAPRO (MRU), TERRAPRO (TE), TITAN, TITAN (TD), VAH, VHD, VN
Model Years2007–2024
Date IssuedMay 10, 2023
Date Added to NHTSAJune 5, 2023
ComponentPOWER TRAIN
Vehicles Affected184 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

CBR: Automated Manual Transmission (AMT) Transmission Kickdown Mode

Affected Vehicles

MakeModelYearComponent
MACK ANTHEM (AN) 2024 100000 POWER TRAIN
MACK GRANITE (GR) 2024 100000 POWER TRAIN
MACK LR 2024 100000 POWER TRAIN
MACK PINNACLE (PI) 2024 100000 POWER TRAIN
MACK TERRAPRO (MRU) 2024 100000 POWER TRAIN
MACK TERRAPRO (TE) 2024 100000 POWER TRAIN
VOLVO VAH 2024 100000 POWER TRAIN
VOLVO VHD 2024 100000 POWER TRAIN
VOLVO VN 2024 100000 POWER TRAIN
MACK ANTHEM (AN) 2023 100000 POWER TRAIN
MACK GRANITE (GR) 2023 100000 POWER TRAIN
MACK GRANITE (GU) 2023 100000 POWER TRAIN
MACK LR 2023 100000 POWER TRAIN
MACK PINNACLE (PI) 2023 100000 POWER TRAIN
MACK TERRAPRO (MRU) 2023 100000 POWER TRAIN
MACK TERRAPRO (TE) 2023 100000 POWER TRAIN
VOLVO VAH 2023 100000 POWER TRAIN
VOLVO VHD 2023 100000 POWER TRAIN
VOLVO VN 2023 100000 POWER TRAIN
MACK ANTHEM (AN) 2022 100000 POWER TRAIN
MACK GRANITE (GR) 2022 100000 POWER TRAIN
MACK GRANITE (GU) 2022 100000 POWER TRAIN
MACK LR 2022 100000 POWER TRAIN
MACK PINNACLE (CHU) 2022 100000 POWER TRAIN
MACK PINNACLE (CXU) 2022 100000 POWER TRAIN
MACK PINNACLE (PI) 2022 100000 POWER TRAIN
MACK TERRAPRO (MRU) 2022 100000 POWER TRAIN
MACK TERRAPRO (TE) 2022 100000 POWER TRAIN
VOLVO VAH 2022 100000 POWER TRAIN
VOLVO VHD 2022 100000 POWER TRAIN
VOLVO VN 2022 100000 POWER TRAIN
MACK ANTHEM (AN) 2021 100000 POWER TRAIN
MACK GRANITE (GR) 2021 100000 POWER TRAIN
MACK GRANITE (GU) 2021 100000 POWER TRAIN
MACK LR 2021 100000 POWER TRAIN
MACK PINNACLE (CHU) 2021 100000 POWER TRAIN
MACK PINNACLE (CXU) 2021 100000 POWER TRAIN
MACK PINNACLE (PI) 2021 100000 POWER TRAIN
MACK TERRAPRO (MRU) 2021 100000 POWER TRAIN
MACK TERRAPRO (TE) 2021 100000 POWER TRAIN
VOLVO VAH 2021 100000 POWER TRAIN
VOLVO VHD 2021 100000 POWER TRAIN
VOLVO VN 2021 100000 POWER TRAIN
MACK ANTHEM (AN) 2020 100000 POWER TRAIN
MACK GRANITE (GR) 2020 100000 POWER TRAIN
MACK GRANITE (GU) 2020 100000 POWER TRAIN
MACK LR 2020 100000 POWER TRAIN
MACK PINNACLE (CHU) 2020 100000 POWER TRAIN
MACK PINNACLE (CXU) 2020 100000 POWER TRAIN
MACK PINNACLE (PI) 2020 100000 POWER TRAIN
MACK TERRAPRO (MRU) 2020 100000 POWER TRAIN
MACK TERRAPRO (TE) 2020 100000 POWER TRAIN
VOLVO VAH 2020 100000 POWER TRAIN
VOLVO VHD 2020 100000 POWER TRAIN
VOLVO VN 2020 100000 POWER TRAIN
MACK ANTHEM (AN) 2019 100000 POWER TRAIN
MACK GRANITE (GR) 2019 100000 POWER TRAIN
MACK GRANITE (GU) 2019 100000 POWER TRAIN
MACK LR 2019 100000 POWER TRAIN
MACK PINNACLE (CHU) 2019 100000 POWER TRAIN
MACK PINNACLE (CXU) 2019 100000 POWER TRAIN
MACK PINNACLE (PI) 2019 100000 POWER TRAIN
MACK TD 2019 100000 POWER TRAIN
MACK TERRAPRO (LEU/MRU) 2019 100000 POWER TRAIN
MACK TERRAPRO (MRU) 2019 100000 POWER TRAIN
MACK TERRAPRO (TE) 2019 100000 POWER TRAIN
VOLVO VAH 2019 100000 POWER TRAIN
VOLVO VHD 2019 100000 POWER TRAIN
VOLVO VN 2019 100000 POWER TRAIN
MACK ANTHEM (AN) 2018 100000 POWER TRAIN
MACK CHU 2018 100000 POWER TRAIN
MACK CXU 2018 100000 POWER TRAIN
MACK GRANITE (GR) 2018 100000 POWER TRAIN
MACK GRANITE (GU) 2018 100000 POWER TRAIN
MACK GU 2018 100000 POWER TRAIN
MACK LR 2018 100000 POWER TRAIN
MACK MRU 2018 100000 POWER TRAIN
MACK PINNACLE (CHU) 2018 100000 POWER TRAIN
MACK PINNACLE (CXU) 2018 100000 POWER TRAIN
MACK PINNACLE (PI) 2018 100000 POWER TRAIN
MACK TD 2018 100000 POWER TRAIN
MACK TERRAPRO (LEU/MRU) 2018 100000 POWER TRAIN
MACK TERRAPRO (MRU) 2018 100000 POWER TRAIN
MACK TERRAPRO (TE) 2018 100000 POWER TRAIN
MACK TITAN (TD) 2018 100000 POWER TRAIN
VOLVO VAH 2018 100000 POWER TRAIN
VOLVO VHD 2018 100000 POWER TRAIN
VOLVO VN 2018 100000 POWER TRAIN
MACK ANTHEM (AN) 2017 100000 POWER TRAIN
MACK CHU 2017 100000 POWER TRAIN
MACK CXU 2017 100000 POWER TRAIN
MACK GRANITE (GR) 2017 100000 POWER TRAIN
MACK GRANITE (GU) 2017 100000 POWER TRAIN
MACK GU 2017 100000 POWER TRAIN
MACK LEU 2017 100000 POWER TRAIN
MACK LR 2017 100000 POWER TRAIN
MACK MRU 2017 100000 POWER TRAIN
MACK PINNACLE (CHU) 2017 100000 POWER TRAIN
MACK PINNACLE (CXU) 2017 100000 POWER TRAIN
MACK TD 2017 100000 POWER TRAIN
MACK TERRAPRO (LEU/MRU) 2017 100000 POWER TRAIN
MACK TERRAPRO (MRU) 2017 100000 POWER TRAIN
MACK TERRAPRO (TE) 2017 100000 POWER TRAIN
MACK TITAN (TD) 2017 100000 POWER TRAIN
VOLVO VAH 2017 100000 POWER TRAIN
VOLVO VHD 2017 100000 POWER TRAIN
VOLVO VN 2017 100000 POWER TRAIN
MACK ANTHEM 2016 100000 POWER TRAIN
MACK CHU 2016 100000 POWER TRAIN
MACK CXU 2016 100000 POWER TRAIN
MACK GRANITE (GR) 2016 100000 POWER TRAIN
MACK GRANITE (GU) 2016 100000 POWER TRAIN
MACK GU 2016 100000 POWER TRAIN
MACK LEU 2016 100000 POWER TRAIN
MACK LR 2016 100000 POWER TRAIN
MACK MRU 2016 100000 POWER TRAIN
MACK PINNACLE (CHU) 2016 100000 POWER TRAIN
MACK PINNACLE (CXU) 2016 100000 POWER TRAIN
MACK TD 2016 100000 POWER TRAIN
MACK TERRAPRO (LEU) 2016 100000 POWER TRAIN
MACK TERRAPRO (LEU/MRU) 2016 100000 POWER TRAIN
MACK TERRAPRO (MRU) 2016 100000 POWER TRAIN
MACK TITAN (TD) 2016 100000 POWER TRAIN
VOLVO VAH 2016 100000 POWER TRAIN
VOLVO VHD 2016 100000 POWER TRAIN
VOLVO VN 2016 100000 POWER TRAIN
MACK CHU 2015 100000 POWER TRAIN
MACK CXU 2015 100000 POWER TRAIN
MACK GRANITE (GR) 2015 100000 POWER TRAIN
MACK GRANITE (GU) 2015 100000 POWER TRAIN
MACK GU 2015 100000 POWER TRAIN
MACK LEU 2015 100000 POWER TRAIN
MACK LR 2015 100000 POWER TRAIN
MACK MRU 2015 100000 POWER TRAIN
MACK PINNACLE (CHU) 2015 100000 POWER TRAIN
MACK PINNACLE (CXU) 2015 100000 POWER TRAIN
MACK TD 2015 100000 POWER TRAIN
MACK TERRAPRO (LEU) 2015 100000 POWER TRAIN
MACK TERRAPRO (LEU/MRU) 2015 100000 POWER TRAIN
MACK TERRAPRO (MRU) 2015 100000 POWER TRAIN
MACK TITAN 2015 100000 POWER TRAIN
MACK TITAN (TD) 2015 100000 POWER TRAIN
VOLVO VAH 2015 100000 POWER TRAIN
VOLVO VHD 2015 100000 POWER TRAIN
VOLVO VN 2015 100000 POWER TRAIN
MACK CHU 2014 100000 POWER TRAIN
MACK CXU 2014 100000 POWER TRAIN
MACK GRANITE (GU) 2014 100000 POWER TRAIN
MACK GU 2014 100000 POWER TRAIN
MACK LEU 2014 100000 POWER TRAIN
MACK LR 2014 100000 POWER TRAIN
MACK MRU 2014 100000 POWER TRAIN
MACK PINNACLE (CHU) 2014 100000 POWER TRAIN
MACK PINNACLE (CXU) 2014 100000 POWER TRAIN
MACK TD 2014 100000 POWER TRAIN
MACK TERRAPRO (LEU) 2014 100000 POWER TRAIN
MACK TERRAPRO (LEU/MRU) 2014 100000 POWER TRAIN
MACK TERRAPRO (MRU) 2014 100000 POWER TRAIN
MACK TITAN 2014 100000 POWER TRAIN
MACK TITAN (TD) 2014 100000 POWER TRAIN
VOLVO VAH 2014 100000 POWER TRAIN
VOLVO VHD 2014 100000 POWER TRAIN
VOLVO VN 2014 100000 POWER TRAIN
VOLVO VAH 2013 100000 POWER TRAIN
VOLVO VHD 2013 100000 POWER TRAIN
VOLVO VN 2013 100000 POWER TRAIN
VOLVO VAH 2012 100000 POWER TRAIN
VOLVO VHD 2012 100000 POWER TRAIN
VOLVO VN 2012 100000 POWER TRAIN
VOLVO VAH 2011 100000 POWER TRAIN
VOLVO VHD 2011 100000 POWER TRAIN
VOLVO VN 2011 100000 POWER TRAIN
VOLVO VAH 2010 100000 POWER TRAIN
VOLVO VHD 2010 100000 POWER TRAIN
VOLVO VN 2010 100000 POWER TRAIN
VOLVO VAH 2009 100000 POWER TRAIN
VOLVO VHD 2009 100000 POWER TRAIN
VOLVO VN 2009 100000 POWER TRAIN
VOLVO VAH 2008 100000 POWER TRAIN
VOLVO VHD 2008 100000 POWER TRAIN
VOLVO VN 2008 100000 POWER TRAIN
VOLVO VHD 2007 100000 POWER TRAIN
VOLVO VN 2007 100000 POWER TRAIN

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 (KC-2229-Ver2) 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.