They do make a lot of sense, as drivers behind you and just off to your side will have a much clearer idea of what you are planning, and that is especially true of the “blind” side. The Muth Signal Mirror System, distributed by MITO Corp., enables you to add flashing LED turn signals to your mirrors, and the system is available for a host of GM trucks: Chevy Silverado, Suburban, Tahoe, Avalanche, Cadillac Escalade, GMC Sierra, Yukon and others.

Installation of the Signal Mirrors is not overly complicated, but it does involve just enough disassembly, wiring and nervous moments that we were concerned about damaging the ’01 Tahoe that we used to help illustrate the install. So we turned the job over to a professional. Pierre Hoffmann at Auto Indulgence in Lomita, California, does this work for a living, and he sees this sort of thing all day long. He also has all the tools he needs, he knows the little tricks involved and he has the process down pat. We followed along so that you, too, could see just what is involved in upgrading to such a system. There are other kits available, marketed under other names and for different trucks, so check around and see what fits your needs. We were happy we did. These signals work every bit as well as claimed, and they are a terrific convenience and safety item. And should you ever leave your indicator on, you won’t miss it now!