TSB: MACK ANTHEM (AN), CHU, CXU, GRANITE (GR), GRANITE (GU), GU, LEU, LR, MRU, PINNACLE (CHU), PINNACLE (CXU), PINNACLE (PI), TD, TERRAPRO (LEU/MRU), TERRAPRO (MRU), TERRAPRO (TE), TITAN (TD), VAH, VHD, VN, VNL, VNM, VNR, VNX (2017–2018)

Bulletin KC-544 — May 11, 2021

Bulletin Details

Bulletin IDKC-544
ManufacturerMACK
ModelsANTHEM (AN), CHU, CXU, GRANITE (GR), GRANITE (GU), GU, LEU, LR, MRU, PINNACLE (CHU), PINNACLE (CXU), PINNACLE (PI), TD, TERRAPRO (LEU/MRU), TERRAPRO (MRU), TERRAPRO (TE), TITAN (TD), VAH, VHD, VN, VNL, VNM, VNR, VNX
Model Years2017–2018
Date IssuedMay 11, 2021
Date Added to NHTSAJune 3, 2021
ComponentELECTRICAL SYSTEM
Vehicles Affected90 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

Model Year 2017, 2018 - ** Tech Tip ** TT - 000 - 2017 GPS Inoperative Message In DID ( Driver Information Display ) - Telematics Gateway ( TGW )

Affected Vehicles

MakeModelYearComponent
MACK ANTHEM (AN) 2018 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK ANTHEM (AN) 2018 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK CHU 2018 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK CHU 2018 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK CXU 2018 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK CXU 2018 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK GRANITE (GR) 2018 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK GRANITE (GR) 2018 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK GRANITE (GU) 2018 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK GRANITE (GU) 2018 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK GU 2018 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK GU 2018 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK LR 2018 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK LR 2018 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK MRU 2018 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK MRU 2018 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK PINNACLE (CHU) 2018 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK PINNACLE (CHU) 2018 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK PINNACLE (CXU) 2018 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK PINNACLE (CXU) 2018 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK PINNACLE (PI) 2018 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK PINNACLE (PI) 2018 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK TD 2018 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK TD 2018 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK TERRAPRO (LEU/MRU) 2018 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK TERRAPRO (LEU/MRU) 2018 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK TERRAPRO (TE) 2018 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK TERRAPRO (TE) 2018 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK TITAN (TD) 2018 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK TITAN (TD) 2018 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
VOLVO VAH 2018 110000 ELECTRICAL SYSTEM
VOLVO VAH 2018 350000 EQUIPMENT
VOLVO VHD 2018 350000 EQUIPMENT
VOLVO VHD 2018 110000 ELECTRICAL SYSTEM
VOLVO VN 2018 350000 EQUIPMENT
VOLVO VN 2018 110000 ELECTRICAL SYSTEM
VOLVO VNL 2018 350000 EQUIPMENT
VOLVO VNL 2018 110000 ELECTRICAL SYSTEM
VOLVO VNM 2018 350000 EQUIPMENT
VOLVO VNM 2018 110000 ELECTRICAL SYSTEM
VOLVO VNR 2018 350000 EQUIPMENT
VOLVO VNR 2018 110000 ELECTRICAL SYSTEM
VOLVO VNX 2018 350000 EQUIPMENT
VOLVO VNX 2018 110000 ELECTRICAL SYSTEM
MACK ANTHEM (AN) 2017 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK ANTHEM (AN) 2017 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK CHU 2017 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK CHU 2017 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK CXU 2017 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK CXU 2017 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK GRANITE (GR) 2017 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK GRANITE (GR) 2017 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK GRANITE (GU) 2017 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK GRANITE (GU) 2017 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK GU 2017 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK GU 2017 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK LEU 2017 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK LEU 2017 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK LR 2017 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK LR 2017 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK MRU 2017 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK MRU 2017 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK PINNACLE (CHU) 2017 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK PINNACLE (CHU) 2017 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK PINNACLE (CXU) 2017 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK PINNACLE (CXU) 2017 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK TD 2017 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK TD 2017 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK TERRAPRO (LEU/MRU) 2017 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK TERRAPRO (LEU/MRU) 2017 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK TERRAPRO (MRU) 2017 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK TERRAPRO (MRU) 2017 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK TERRAPRO (TE) 2017 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK TERRAPRO (TE) 2017 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
MACK TITAN (TD) 2017 346000 COMMUNICATION:MANUFACTURER TELEMATICS
MACK TITAN (TD) 2017 284100 BACK OVER PREVENTION:DISPLAY FUNCTION
VOLVO VAH 2017 350000 EQUIPMENT
VOLVO VAH 2017 110000 ELECTRICAL SYSTEM
VOLVO VHD 2017 350000 EQUIPMENT
VOLVO VHD 2017 110000 ELECTRICAL SYSTEM
VOLVO VN 2017 350000 EQUIPMENT
VOLVO VN 2017 110000 ELECTRICAL SYSTEM
VOLVO VNL 2017 350000 EQUIPMENT
VOLVO VNL 2017 110000 ELECTRICAL SYSTEM
VOLVO VNM 2017 350000 EQUIPMENT
VOLVO VNM 2017 110000 ELECTRICAL SYSTEM
VOLVO VNR 2017 350000 EQUIPMENT
VOLVO VNR 2017 110000 ELECTRICAL SYSTEM
VOLVO VNX 2017 350000 EQUIPMENT
VOLVO VNX 2017 110000 ELECTRICAL SYSTEM

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-544) 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.