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.
REVO
Service Bulletin/Repair Instructions
On certain 2007 - 2017 model year REV Ambulance Group Orlando, Inc. ambulances equipped with web style Oxygen retention straps it has come to our attention that some end users may not be aware of the proper belt placement. Proper placement is essential to achieve appropriate vertical retention of the 02 bottle. Failure to restrain the compressed 02 air bottle vertically during a roll over event could cause a potential hazard.
080713
Service Bulletin/Repair Instructions
Wheeled Coach/Road Rescue is recommending that you inspect the U-Bolts on the Dodge Four Link Suspension. The U-Bolts used to fasten the suspension unit bottom to the axle should be installed so that equal amount of threads above the nuts exists in all positions. If these nuts are not tightened equally, the length of the bolt can be excessive, causing the potential for the top of bolt to come in contact with the bottom of the bump stop bracket on Dodges. Inspect your Dodge for evidence of the top of the U-Bolt hitting the bottom of the bump stop bracket. If contact exist cut off any excessive threads on the U-bolt and inspect frame and cross member for damage.
072313
Service Bulletin/Repair Instructions
Wheeled Coach/Road Rescue is recommending that you inspect the vent hose at the fuel tank to verify that there is a quick connect fitting on the hose that connects to the tank.