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.
512020
Service Bulletin/Repair Instructions
According to Ford Recall 25V793: "According to Ford’s records, the remedy software for Safety Recall 20S73 may not have been installed correctly during a prior dealership visit. Because the correct software may not have been installed on your vehicle, the underlying condition specified in Safety Recall 20S73 may still exist. On your vehicle, it may be possible that the engine cover insulation does not fully extend to the perimeter of the factory engine cover. This may result in elevated temperatures at certain areas of the engine cover surface in the passenger compartment on both driver and passenger sides. Direct and continuous contact with exposed skin at these locations may increase the risk of skin irritation and/or a minor burn.
511869
Service Bulletin/Repair Instructions
According to GM Recall 24V702: "The brake lines in these cutaway vehicles may not meet the recommended clearance to the GM-provided body mounts. If brake lines contact the body mounts, the brake line may experience wear or damage that could lead to a brake fluid leak. A brake fluid leak can result in reduced stopping performance or inoperative service brakes, increasing the risk of a crash.
511640
Service Bulletin/Repair Instructions
According to General Motors Recall 23V247: "These vehicles are equipped with an unused circuit that a final-stage manufacturer may elect to use to install an optional rear HVAC system. If the final-stage manufacturer leaves the circuit's connectors or cut wires unsealed, exposure to moisture or contamination may, over time, cause corrosion. This could result in high current draw through the circuit at the vehicles' lower left side B-pillar. Unintended release of excessive heat from the circuit may pose a risk of a vehicle fire and increase the risk of injury."