The Land Cruiser has ranked near the top of theft statistics for several years running, and the 250 is a frequently targeted model. The basic principle is not to rely on a single measure, but to layer protections with different roles.

As a rough guide, we typically propose:

• Around ¥100,000s: Start with a "won't-let-them-open" measure. This type prevents illicit unlocking from succeeding and is strong against relay attacks and key emulators (nicknamed "Game Boy"), with almost no change to everyday convenience. Installation takes about half a day.

• Around ¥200,000: A two-stage setup of "won't-let-them-move" (start prevention) plus "alert immediately." Start-prevention types do not sound an alarm on their own, so you either add a siren or choose a type that includes alarm functions from the start. Installation takes about half a day to a day.

• ¥300,000 and up: Built around a higher-end model with high-sensitivity sensors as standard, combined with a "won't-let-them-open" measure. Adding a GPS type for locating the vehicle covers prevent, alert and search (GPS types incur a separate monthly communication fee). Installation takes about two days.

If you are also considering audio, we can supply model-specific pre-assembled speaker kits (for 10-speaker and 6-speaker cars) and a subwoofer baffle for the LC250. Installing them together with security is efficient, since the trim only needs to be removed once.

The amounts and durations above are guides only. The best answer varies with grade, equipment and any existing aftermarket parts, so we provide an accurate quote after checking your vehicle. Please feel free to consult us.

If protection against the CAN invader is a priority, we most recommend building the setup around the IGLA series — which keeps directly monitoring regardless of the vehicle's communication state — and especially AUTHOR ALARM with its dedicated CAN invader operating mode.