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.
TSB23-540-001
Service Bulletin/Repair Instructions
This service bulletin is about certain vehicles equipped with 92 inch or longer roof mounted light bars that could experience fracture of the light bar mounting brackets, as well as provides instructions to replace the light bar bracket with improved bracket design.
TSB23-260-001
Service Bulletin/Repair Instructions
This service bulletin is about the power steering fluid level sensor could exhibit leaks where sensor seals against power steering reservoir and provides instructions on replacing current power steering level sensor with improved sensor design.
4VZ-H6C7B-03
Service Bulletin/Repair Instructions
This service bulletin provides instructions on how to improve clearance between the air spring and sway bar ends.
4VZ-T5Z6X-03
Service Bulletin/Repair Instructions
This service bulletin provides instructions on how to replace air springs that may be subject to a blistering condition.
4VZ-G8K8G-03
Service Bulletin/Repair Instructions
CSB16-330-001 was issued to correct the plumbing of the air lines that may have been installed opposite of their intended connections.
TSB16500001
Service Bulletin/Repair Instructions
This service bulletin provides directions on eliminating interference between the "Hadley" bulkhead connector and an adjacent fuel line.
4VZ-H6X8W-01
Service Bulletin/Repair Instructions
This technical service bulletin is to supply instructions on increasing adding a spacer to the rear axle suspension spacer to increase clearance between rear axle and floor of vehicle.
4VZ-H6X8W-06
Service Bulletin/Repair Instructions
This technical service bulletin is to supply instructions on increase clearance between exhaust tube and chassis crossmembers