How To Fix Acc/fcw Unavailable Service Required? Noticed automatic high beams, lane assist, adaptive cruise control all inoperative. On startup a quick message is flashed "ACC/FCW limited functionality" and. 2 Posts. #21 · Jun 17, 2020. Simple fix , the ACC/FCW alert basically means your FCW ( Forward Collision Warning) sensor in the front of your vehicle is dirty. The. I bought this vehicle on Sept 7th. I drove it home and the next day the light up saying ACC/FCW UNAVAILABLE, and Service 4wd. If you turn the vehicle off and turn it.
ACC/FCW is a service that helps maintain the safety of drivers and passengers by preventing vehicle collisions. Unfortunately, this service can become unavailable due to a variety of reasons. If you find yourself in this situation and need to fix this issue, here is what you should do.
The first step is to check the fuse box. The fuse box is typically located near the driver’s side of the engine compartment. Open the fuse box and check if the ACC/FCW fuse is in good condition and firmly seated in the box. If the fuse is damaged, replace it with a new one of the same rating.
The second step is to check the wiring. Make sure that all the wires connecting the ACC/FCW system are not loose or frayed. Check the connector for any signs of rust or corrosion. If the wires are damaged, replace them with new ones.
The third step is to check the ACC/FCW system itself. If the system is not working properly, you may need to reset it. To reset the system, press and hold the reset button for a few seconds. This will reset the system and should fix the issue.
The fourth step is to check the software. Make sure that the software installed in the ACC/FCW system is up to date. If it is not, download the latest version and install it. After installation, restart the system to apply the changes.
The fifth step is to check if the ACC/FCW system is working properly. Take your vehicle for a test drive and check if the system is working as intended. If not, you may need to take the vehicle to a professional for further inspection.
These are the steps you should follow if you find yourself with an ACC/FCW unavailable service. Following these steps should help you fix the issue and get the system working properly again. If the issue persists, contact a professional for further assistance.
👉 What is Adaptive Cruise Control
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