View CartA problem some people face is that many factory keyless entry systems these days use multiple remote transmitters. For instance, it is quite common now for a given make-model-year vehicle application to offer both a keyfob remote for vehicles with a keyed ignition and a proximity remote for vehicles with push-button start. It is also common for the same application to offer vehicles with remote start and those without. Vehicle manufacturers also often mint vans and SUVs with an array of power door options.
In some cases, it does not matter if you buy a remote with additional buttons to replace an original remote. Often, the additional buttons simply will not work. However, there are also situations where a different remote, even one with the same FCC ID, will not work in place of a remote with a different button configuration. The greatest challenge for consumers is knowing all of the options and then being able to select the correct remote for their vehicle.
Aftermarket alarm systems generally offer fewer options. In fact, apart from two-way systems, most aftermarket alarm systems only have a single original remote associated with it. The main exception to this is two-way systems, which often have both a 2-way transceiver and a 1-way companion remote. The options that come with the system are generally a function of the system model, so if a consumer knows the model of their system, they can usually find the correct replacement remote.
