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Expert Answers about Lexus RX 450h


  • How to Install a Prodigy RF Brake Controller on a Vehicle with a 4-Way
  • To install the Prodigy RF Brake Controller part # TK94FR that you referenced all you will need is a 7-way with the 12 volt circuit active. For that you would only need the part # 37185. The black wire of the this adapter would need to get run to the 12 volt terminal of the battery of your vehicle through a circuit breaker like part # 9510. You would want to use 10 gauge wire like the part # 10-1-1 sold by the foot. For a ring terminal to attach to the battery you would want the part #...
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  • Trunk-Mount Bike Rack to Fit Both 2010 Lexus RX450h & 2014 Honda Accord Sport Sedan
  • For a trunk-mount 2-bike rack that fits both your 2010 Lexus RX 450h (without rear spoiler) and your 2014 Honda Accord Sport sedan, I suggest the Thule Passage 2 carrier, part # TH910XT, if you don't need locks on the rack. If you prefer a Thule rack that includes integrated locks for both the rack itself and for your two loaded bikes, then the better choice is their OutWay , part # TH45JV. The Saris Bones racks fit the Accord, but not the Lexus. In terms of ease of installation, the OutWay...
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  • Roof Rack Recommendation for 2017 Lexus Lexus 450h with Panoramic Moon Roof
  • The Thule Roof Rack part numbers # TH711220, # TH710601, and # TH186044 is a confirmed fit for your 2017 Lexus RX 450H with a glass roof. Thule states that your glass roof cannot be opened with this rack installed though. Their warning is: Do not open, vent, or retract the sunroof/moonroof/glass roof when rack is installed
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  • Bike Carrying Options for 2012 Lexus RX450H
  • Beginning with a hitch, I would recommend the Draw-Tite part # 75676. The Swagman XTC-2 is a reasonably-priced platform-type rack that can carry up to two bikes. The rack is very highly rated by our customers. An anti-rattle threaded hitch pin is included, but an optional locking hitch pin/cable lock is also available as part # S64031. For 4 bikes, Swagman offers the XTC-4, part # S64665. The hitch/cable lock is included. Although a roof mounted bike rack like the Yakima front loader...
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  • Recommended Brake Controller For 2010 Lexus RX450R With Tow Package
  • On your 2010 Lexus RX450h, there is not a wire run for you from the dash to the rear connector. I recommend using the Tekonsha Prodigy RF Wireless Trailer Brake Controller - 1 to 3 Axles - Proportional # TK94FR you mentioned. This is a proportional brake controller that will apply the brakes on your trailer at the same time and with the same amount of force as you hit the brake pedal in your Lexus. This controller automatically adjust trailer braking based on deceleration. The unit...
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  • Does Trailer Wiring for 2014 Lexus RX 450h Require Trip to Dealer for Reprogramming
  • The trailer wiring kits we offer for your 2014 Lexus RX 450h like the Tekonsha part # 118255 do not require a trip to a dealer to reprogram anything. This installs really easily and you're on your way!
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  • Trailer Hitch and Bike Rack Recommendations for a 2012 Lexus RX 450 H
  • The spoiler on your 2012 Lexus RX 450h is going to prevent a trunk mount bike rack from being installed. The best option would be a trailer hitch. However, you will need to consult the lease agreement and the dealership from which the vehicle was leased to determine if you can install a hitch. If you can install a trailer hitch, I recommend the Draw-Tite hitch # 75676. There is no drilling to install the hitch but you would need to trim or remove a rubber air deflector/fascia to install...
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  • Recommended Trailer Hitch and Wiring for 2018 Lexus RX 450h
  • Starting with the trailer hitch for your 2018 Lexus RX 450h I recommend the Curt Class III Receiver Hitch # C13282 because it allows for an easier installation than the Draw-Tite model that is also available and is made right here in the USA. Unlike with the Draw-Tite unit, the Curt hitch has an angled crosstube that allows you to leave the factory exhaust pipe in its original location (see attached image). The Draw-Tite hitch requires that the pipe be lowered by a couple inches which would...
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  • Does Handsfree Tailgate of 2018 Lexus RX 450h Still Function with Curt Trailer Hitch
  • With the Curt # C56434 that fits your 2018 Lexus RX 450H we have found that the handsfree liftgate is still functional but you'll just need to kick to either side of the hitch opening. There isn't a different option that doesnt require doing this.
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  • Recommended Trunk Mount Bike Rack for a 2011 Lexus RX 450h
  • We do not have a trunk rack available for your Lexus with a spoiler. To carry two bikes, I recommend installing a hitch like the Draw-Tite Max-Frame Trailer Hitch Receiver - Custom Fit - Class III - 2" # 75676. Then you could choose from a hanging rack like the Thule Camber # TH9058, or a platform rack like the Swagman Semi 4.0 # S64698. I included a couple installation videos and a helpful article for you.
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  • Bike Rack Recommendation for 2016 Lexus RX 450H
  • Due to the sloped rear windshield and larger rear spoiler we don't have any trunk mounted bike racks that fit your 2016 Lexus RX 450h. But we have a better solution with a hitch bike rack. Hitch racks don't touch the vehicle paint or windows, are much more secure, and easier to install. So you'd need a hitch installed first like the Curt Class III Hitch # C73DR and then you could use a hitch rack like the Hollywood Racks Trail Rider # HR200Z which is a easy to use and also very stable rack. I...
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  • Hitch and Bike Rack Recommendation for 2010 Lexus RX 450 for Bike with Fenders
  • For a bike that has fenders the Thule DoubleTrack Pro XT # TH92BJ is a great option. Reason being that it grabs the bikes at the frame with a very easy to use and effective clamp system instead of needing to grab the bike's tire which a fender would interfere with. For a hitch for your 2010 Lexus RX450H we have the Curt hitch part # C13143 which would work well for the bike rack mentioned and on your vehicle as it is a custom fit.
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  • Availability of Adjustable Ball Mount For Varying Trailer Heights
  • We have adjustable ball mounts like the B and W Tow and Stow part # BWTS10037B which allow to have a two different ball sizes and can adjust the rise to up to 5-1/2 inches or the drop down to 5 inches.
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  • Does Redarc Tow-Pro Elite Trailer Brake Controller Have to Draw Power from Battery
  • When powering a brake controller like the Redarc Tow-Pro Elite Trailer Brake Controller # RED44FR you have to power it directly from the vehicle battery. Mainly because it would prevent the controller from shorting out any of your vehicle's power circuit in the event of a short, but also because none of the aux power sources are going to be rated high enough for the amperage load of a brake controller. I attached a help article on installing brake controllers plus a diagram for you to...
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  • Recommended Roof Rack and Kayak Carrier for a 2017 Lexus RX 450h with Raised Side Rails
  • As of yet (July 2017) Yakima does not have a roof rack fit for your 2017 Lexus RX 450h, but I did call them and my contact said that they will be finished testing and have a fit in a month or two. Because of this I recommend going with the Malone AirFlow2 # MPG215 which is confirmed to fit your raised side rails. This roof rack option uses Aero style Crossbars which will help to reduce wind noise and drag. These will install quickly and come with built-in locks to secure the roof rack...
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  • Recommended Trailer Hitch and Trailer Wiring Harness for 2012 Lexus RX450h
  • A Lexus dealer should be able to tell you how the vehicle's equipped if you provided them with the VIN. You can also determine this for yourself using a circuit tester like part # PTW2993 on the trailer wiring connector located behind the bumper under the driver's side of the vehicle at the rear (see provided photo). Have a helper activate each turn signal function as you probe the pins in the connector under the vehicle. If the plug is active, all you'll need is the # 118252. If it's not...
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  • Trailer Wiring Harness Recommendation for a 2011 Lexus RX450H without Tow Package
  • Sounds like your 2011 Lexus RX450H does not have the tow package so there is a missing harness needed to activate the 4-way wiring. Because of that you would want the Tow Ready Wiring harness part # 118255 that you referenced as it comes with the converter harness needed and will activate the 4-way wiring port.
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  • Modifications Needed to Install Curt Hitch # C13282 on 2018 Lexus RX450h
  • I attached an install video link for the Curt hitch part # C13282 that you referenced that will detail how it installs exactly on your 2018 Lexus 450h. I also attached a picture that shows how the rear fascia needs to be trimmed as well. That's the only modification needed to install the hitch.
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  • Do I Need To Put Snow Chains on the Front and Back Wheels of my 2010 Lexus RX 450H AWD
  • You can put a pair of Snow Tire Chains on just the front wheels of your 2010 Lexus RX 450H AWD and you would be fine in the snow. For added stability it would not hurt to have another pair on the rear wheels, but it is not necessary. You should also check with the owners manual of the vehicle to ensure that your vehicle is compatible with snow chains. I have attached a snow chain FAQ article that you might find helpful below. There is also the snow chain laws for your state listed in...
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  • Roof Rack for 2021 Lexus Rx 450h with Panoramic Sun Roof for Carrying Thule Cargo Box
  • For your 2021 Lexus RX 450h with flush rails and the panoramic glass roof Thule has the Wingbar Evo roof rack part numbers # TH711320, # TH710601, and # TH186044 as a confirmed fit that will work great with your cargo box as well. Thule does not recommend opening the roof with the rack and box installed as it may cause interference but also the rack would also create a lot of wind noise which you'd most likely not enjoy either.
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