Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
167-T2608-3
Service Bulletin/Repair Instructions
Driveshaft Center Bearing Damage 2022 through 2026 model year Hino L-Series trucks If the truck experiences driveshaft center bearing damage or repeated damage, visually inspect the installed position of the center bearing, specifically the relationship between the dust cover and center bearing strap. If the installed position reassemblies the photograph below, open a TechAssist case describing the condition/concern and attach an image of the trucks driveline dust cover to center bearing alignment for further direction.
167-T2505-1
Service Bulletin/Repair Instructions
The VSC relearn is required after Vehicle Stability Control repairs are completed
167-T2501-1
Service Bulletin/Repair Instructions
TT-24-013 22-25 MY RF BRAKE AIRLINE REROUTE
167-R2408-1
Service Campaign
We have determined that certain 2022 – 2024MY Hino S-Series vehicles equipped with 5.2L (4HK1) diesel engines and option (IE1) 4-wheel disc brakes were built with an Engine Control Module (ECM) and Diesel Exhaust Fluid Control Unit (DCU) containing an On Board Diagnostic (OBD) calibration error for Diagnostic Trouble Codes (DTC) P2201 NOx Sensor Circuit Performance Sensor 1 and P20EE Diesel Exhaust Fluid (DEF) System NOx Trap Low Efficiency.
167-T2408-1
Service Bulletin/Repair Instructions
2022 to 2025 MY L-series are equipped with an engine start detection frequency monitor. Once the monitor has detected a predetermined amount of starts the meter will display “Change starter & starter relay”. The monitor must be reset any time the starter is replaced .
167-T2407-3
Service Bulletin/Repair Instructions
2024 L-SERIES TRANSMISSION OIL COOLER LINE FLARE NUT AND ADAPTER TORQUE SPECIFICATIONS TECH TIP NO: 24-008
167-T2407-5
Service Bulletin/Repair Instructions
2022-2025 MY L SERIES LOW DEF FAULT CODES 3497, 3498 TECH TIP NO: 24-011
167-T2406-1
Service Bulletin/Repair Instructions
After connecting to a truck using DX3, it may be necessary to review or create a DX Diagnostic Report for review.
167-T2406-2
Service Bulletin/Repair Instructions
This article will provide dealership technicians with information on how to open a tech assist case and discuss what is required when opening a Tech Assist Case.
167-L2405-1
Service Bulletin/Repair Instructions
Customer Letter sent to the Dealer Network
167-R2402-1
Service Bulletin/Repair Instructions
Some Vehicle Emissions Control Information Labels may contain incorrect information due to incorrect data being input to the production control system, or due to mislabeling during repair