Wiring Kits for Lexus IS 300h

Our wiring kits for the Lexus IS 300h provide a high-quality solution for retrofitting a towbar. They ensure that tail, brake, and indicator lights as well as optional lighting and power features connect cleanly and reliably with the vehicle’s electrical system — even for this hybrid model and moderate trailer loads.

Technical Features & Benefits

7- or 13-pin connection options: Whether you need the basic lighting setup or want extras like reverse lights, constant live power, or accessory sockets.
Hybrid-compatible components: Connectors, insulation and wiring are chosen to match hybrid system demands and minimize risk of electrical conflicts or warning signals.
Weatherproof & durable construction: Sealed connections, high-quality insulation and corrosion-resistant materials ensure longevity in changing conditions.
Secure wiring & proper fuse protection: Thoughtful routing of cables, solid connector fit, and correct fuse sizing reduce wear, electrical losses, and risk of faults.

Towing & Load Specifications

Key figures for the Lexus IS 300h (depending on trim/year):

Braked towing capacity: **≈ 750 kg** :contentReference[oaicite:3]{index=3}
Unbraked towing capacity: **≈ 750 kg** :contentReference[oaicite:4]{index=4}
Curb weight: approx. 1,620–1,720 kg; Gross vehicle weight about 2,130 kg :contentReference[oaicite:5]{index=5}

Installation & Technical Notes

Check if your car has rearview camera, parking sensors or driver assistance features — these may require activation or electrical adjustments when adding trailer lighting.
Ensure connectors are securely fastened; cables routed safely and protected from heat, moisture or mechanical strain.
Use correctly rated fuses; verify that the vehicle’s electrical system can handle the lighting load of a trailer plus any extra accessories.
Pick a wiring kit that is mechanically and electrically capable of matching the towing requirements.

FAQ – Frequently Asked Questions

Which wiring kit (7- or 13-pin) is suitable?
A 7-pin wiring kit generally suffices for standard lighting (tail, brake, indicator). If you need reverse lights, constant live power or accessory connections, then a 13-pin variant is recommended.

Is coding or activation required?
It depends on vehicle trim, year, and what electronics are installed. On the IS 300h, hybrid systems and assist/comfort features sometimes require that added lighting signals be recognized by existing control systems; activation or adaptation might be necessary.

Can I install the wiring kit myself?
Yes — with proper tools and basic knowledge of automotive electrical systems. If the vehicle is heavily equipped with sensors, cameras or assistance systems, or warning lights appear, then professional installation is safer.

Is the wiring kit weatherproof and durable?
Yes — our kits use weather-sealed connectors, good insulation and robust materials designed to resist moisture, corrosion and environmental stress.

What should I do if warning messages or electrical faults appear?
Often caused by loose connectors, incorrect wiring path, or incompatible components. Proper installation, correct fuse size and, if needed, using auxiliary modules or relays usually resolve these issues and ensure stable operation.

Filter products