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Expert Answers about Lexus RX 350


  • Installing Wiring Harness on 2009 Lexus RX350 with Factory Tow Package
  • The RX350 with the tow package is somewhat of a rarity. Since your Lexus has the wiring port in the rear driver's side cargo area, I would recommend using a circuit tester like part # PTW2993 and check to see if that port is active. Activate the left turn signal and probe the wires until you locate the one that makes your tester light. Repeat this procedure to identify the right turn and running light circuit. I would recommend also testing the right and left turn wire on the port to make...
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  • Where Does the Tekonsha 118255 Plug Into During Installation
  • Yes, you do have the correct part. The Tekonsha # 118255 is the correct harness for your 2010 Lexus RX350, but I think you might be looking in the wrong spot. The plug you're looking for is located under the vehicle on the drivers side and not hidden behind the cargo panels as some other harnesses for the 2010 Lexus RX350. There is not an installation video available for this harness currently, but you should be able to find the harness easily near the bumper and under the vehicle. If...
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  • Is Trimming Required to Install Curt Hitch C13272 on 2016 Lexus RX350 F Sport
  • The Curt 2-inch Class III hitch # C13272 is a confirmed fit on your 2016 Lexus RX 350 F Sport version and Curt rates this installation as being pretty easy since it is a no-drill fit. I reviewed the installation instructions on their website and they confirm this hitch mounts without drilling and without any trimming of cosmetic panels. All tools required are also indicated in the instructions. A helpful article and installation video are linked to assist your install.
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  • Recommendation for Bike Rack that is Easy to Install and Remove
  • Installing and removing the Swagman XC 2-Bike Rack # S64650 will require you to screw in and unscrew the threaded anti-rattle hitch pin that it comes with in order to install and remove it from a hitch such as the Curt # C13272 that fits your 2018 Lexus RX 350, and this would also be true if you wanted to lock your rack to your hitch with the Anti-Rattle Hitch Lock and Cable for Swagman Bike Racks # S64031. It is not a difficult process and the minimal time you'll spend doing this is a...
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  • Trailer Wiring Harness Installation Location on a 2010 Lexus RX 350 with Factory Tow Package
  • The connection point for trailer wiring harness # 56083 is located behind the rear bumper, on the driver side. I have included a picture and a link to the instructions that show this for you. That connection point may be there even if the vehicle does not have the factory tow package. The easiest way to determine how the vehicle is equipped is to call a dealer service department and have them run the VIN through their system. They can tell you if you have the tow package or not. If you...
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  • Installing Trailer Wiring Harness on 2009 Lexus RX350 with Factory Tow Package
  • If you are using harness # 18002 then you would ground the white wire to a clean, bare metal surface. The white is the ground for the harness. The wires that you are tapping into on the vehicle will use that ground and it should still work. It is possible that the ground on the factory harness is tucked up further towards the front of the vehicle for some reason so you will want to cut back the covering/loom to see if there are more wires. The ground may not be white on the vehicle harness....
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  • Factory Brake Controller Wiring Harness Location on a 2015 Mercedes Sprinter Motorhome
  • If Mercedes installed the factory brake controller harness on your 2015 Mercedes Sprinter Motorhome, it would be under the driver's seat. It would have a green connector. If the harness is not under the seat, then from our experience, it was not included on the vehicle and a brake controller must be hard wired. One way you could try to verify if your motorhome came with the brake controller harness would be to provide your VIN to either a Mercedes dealer or to your RV dealer. If the...
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  • Installing Tekonsha Trailer Wiring Options for a 2015 Lexus RX 350
  • If you are talking about the Tekonsha T-One # 118255 for your 2015 Lexus RX 350 then no, you will not need to run a separate wire to the battery for power. This is a simple plug-in option that does not require any splicing. If, however, you were talking about the Tekonsha ZCI # 119250KIT then yes, you will need to run the included Black wire up to the battery for power. I have attached a video of this process being done on a 2015 BMW X5 that you can use as a reference. Installation instructions...
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  • Availability of Install Video Showing Hitch Install on 2013 Lexus RX350
  • We do indeed have videos showing the Curt Class III, part # C13143 being installed on a 2015 Lexus RX350, and the Draw-Tite # 75676 being installed on a 2013 RX350. You can see the videos and the installation instructions by clicking the provided links. The install on your 2013 RX350 would be identical. All three hitches have identical weight capacities and would install in a similar manner. Therefore, you'll sacrifice nothing by choosing the lowest-priced option, the Hidden Hitch, part...
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  • Is Rear Damper of 2016 Lexus RX 350 F Sport Removed for Hitch Install
  • Since the Curt Hitch part # C13272 installs by simply raising up into position at the rear of your vehicle and then bolting it into place there would be no need for you to remove the rear damper or any body panels to installation. If you wanted to do some towing you might be interested in etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and one with a 2-3/4 inch rise or 4 inch drop. It also includes a 1-7/8 inch ball, 2 inch ball, hitch...
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  • Troubleshooting No Power to 4-Way on 2014 Lexus RX 350 After Curt Harness 56083 Install
  • The only way to know for certain is to contact at Lexus dealer with your VIN to determine if you have the tow package. Sounds like you are missing some relays or fuses under the hood of your 2014 Lexus RX 350 that will allow the trailer wiring harness to be active. There is a tech note for this harness that it may require additional components such as relays or fuses depending on how the vehicle is equipped.
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  • Installation of Trailer Wiring Harness on a 2007 Lexus RX-350
  • I do not have the Valley wiring harness # 30226 for your 2007 Lexus RX-350 so I am not familiar with their instructions on the wiring harness, but it sounds similar to the Tow Ready T-One Connector Wiring Harness, part # 118478, that we carry for your vehicle. The Tow Ready wiring harness draws power directly from the vehicles battery via an in-line fuse so your electrical system is safe. Part # 118478 is designed this way to protect your electrical system. There would only be a slight...
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  • Final Appearance of Trailer Hitch Installation on a 2016 Lexus RX350
  • Since we have not had a chance to install the hitch on 2016 Lexus RX350, I have attached the representative photo used by the manufacture of the hitch, installed on the vehicle from the instructions, which I've linked to this page for you. The Curt hitch # C13272 is installed in the photo on a RX350. This hitch will fit both the F-Sport and non F-Sport models.
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  • Torque Rating for M12 Hardware on Curt C13143 Hitch Installation on 2015 Lexus RX350
  • Because the torque ratings can change according to the nature of the hardware that Curt sources, we don't publish the torque ratings in case they should change. I've linked to the current installation instructions for the Curt # C13143, the correct torque ratings are listed on page 5, step # 13. If you'll be towing with the hitch, you'll also need a trailer wiring harness like # 118252 for vehicles with the tow package or # 119250KIT for vehicles without the tow package. You'll also need...
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  • Finding Connector for Install of Tekonsha Trailer Wiring Harness on 2022 Lexus RX 350 w Tow Package
  • If you check out the attached install video you'll see exactly where to find the connector to install the Tekonsha 4-way kit part # 18252 on your 2022 Lexus RX 350. If you cannot find it that would indicate you most likely would not have the tow package.
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  • Is Any Trimming Required to Install etrailer Trailer Hitch on a 2016 Lexus RX350
  • You should not have to trim anything on your 2016 Lexus RX350 to install etrailer trailer hitch # e94AR. Ther is also no drilling required for installation. If Your Lexus is equipped with the lateral performance damper, the damper will need to be removed to install this hitch. This hitch is an excellent choice for use with a bike rack. There is another hitch that will fit, # C13272. But if it were me I would go with the less expensive etrailer hitch. If you ever plan on doing some towing...
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  • Does Curt Trailer Hitch For 2022 Lexus RX 350 Require Cutting Rear Bumper
  • You will need to trim a small section of the fascia underneath the bumper of your 2022 Lexus RX 350 in order to install the Curt hitch that fits, which is the following part number: - Curt Trailer Hitch Receiver # C73DR That said, it is just a small 3" x 3" square that needs to be cut for the receiver to protrude under your Lexus, so it won't be noticeable.
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  • How to Install a Brake Controller on a 2008 Lexus RX 350 with Factory Towing Package
  • In order to install a brake controller like the Curt Venturer, # C74VV, on your 2008 Lexus RX 350, you will need to hardwire it in. There isn't a plug-in harness available for your vehicle. The first thing you will need is a 4-Way flat trailer connector, # 18002, unless your Lexus already has one. I have linked a video showing how it installs. After the 4-Way is installed, or if the vehicle already has a 4-Way, you will need to install a 7-Way. Use # ETBC7 which comes with the 7-Way and...
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  • Installing a Trailer Hitch on a 2015 Lexus RX 350 F Sport
  • It is actually very easy to remove that bar and install the hitch then reattach the bar to the hitch. I have included a picture from the instructions for trailer hitch # C13143 (as well as a link to the instructions). It is as simple as unbolting it and then reattaching it to the hitch using the same hardware. This step is only done on F Sport models which is why it is not in the video. If you plan on doing some towing you might be interested in etrailer ball mount kit # 989900. It comes...
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  • Instructions For Installing Wiring Harness On 2010 Lexus RX 350
  • I am attaching the instructions for the Curt T-Connector Vehicle Wiring Harness, part # C55563 for your 2010 Lexus RX350. As the instructions say, you will need to remove the access panels on each side of the rear area and then remove the rear hatch threshold plate. You will then need to locate the vehicle harness behind the access panel. Check out the connectors on the Curt harness and find the connectors that match. Then disconnect the vehicle connector on the driver side. Insert the...
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