Towing with highlander hybrid - Page 14 - Toyota Nation Forum : Toyota Car and Truck Forums
Highlander Hybrid The first hybrid SUV from Toyota, the Highlander Hybrid!

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post #196 of 202 Old 01-16-2019, 09:58 AM
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We had same issue with RX300 and it was bad heating element. I'd suggest to check for continuity in it. I am not really an electrician, but have no doubt it can be done. Also, check heating element plug for 12V. If you have 12V, it's element. Mof, the switch itself can go bad, right?

Start with determining if you have power to the element. Then work your way down from that.



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post #197 of 202 Old 01-16-2019, 10:54 AM
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ukrkoz
Thank you for your reply.
I tried Highlander 1st gen with 1 unrelated reply hence I went here. It has noting to do with Hybrid it is a interior Highlander or like yours RX300 or RX350 factory type option and therefore tried to get an answer here.

I have continuity I have good clean contacts just not always heat. Being a process of heating a coil with higher amperage I assume it is switched on and off via a relay.

My owners manual is not like in cars the olden days when it basically was a shop manual.

The question therefore is where are these relays located and are they replaceable.
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post #198 of 202 Old 01-16-2019, 11:16 AM
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Quote:
Originally Posted by EJO View Post
Being a process of heating a coil with higher amperage I assume it is switched on and off via a relay.
I've worked on several Toyota and Lexus models with heated seats there was no relay the switch supplied power to the element directly. To diagnose this hook up a light bulb by back probing the connector and watch to see if it stays on solid. The cars I worked on had bad heating elements replacing them is no fun.
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post #199 of 202 Old 01-16-2019, 11:40 AM
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OK thank you
Time to sell the car as that will be a lot less hassle to keep the wife happy. In the meantime while it is cold we'll drive the Subaru as those heated seats work perfect.
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post #200 of 202 Old 01-21-2019, 12:57 PM
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To address #16 post:
Conventional Highlander engine
  • 295 horsepower
  • 263 lbs.-ft. of torque
  • Compression Ratio10.8:1
  • 23 mpg combined
  • 5,000-pound max trailer weight
Hybrid Highlander engine


  • 231 horsepower
  • 215 lbs.-ft. of torque
  • Compression Ratio

    12.5:1
  • 29 mpg combined
  • 3,500-pound max trailer weight
Atkinson cycle is electronically simulated via VVT-I system, controlled by ECM.

Original Atkinson engine has additional components, not implemented in conventional engines


"Cycle Engine" This engine used poppet valves, a cam, and an over-center arm to produce four piston strokes for every revolution of the crankshaft. The intake and compression strokes were significantly shorter than the expansion and exhaust strokes.


.2AZ-FXE

The 2AZ-FXE is an Atkinson cycle variant of the 2AZ-FE. It has the same bore and stroke, but the cams and pistons are unique. It has a physical compression ratio of 12.5:1.
The large valve overlap leads to a reduction in cylinder charge and reduced torque and power output, but efficiency is increased. This combination makes the 2AZ-FXE suitable for use only in hybrid vehicles, where peak torque and power demands can be met by the electric motor and battery.
Maximum output when used in the Camry hybrid is 211 hp (147 kW) at 6000 rpm with 108 lb·ft (257 N·m) of torque at 4400 rpm.

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post #201 of 202 Old 01-22-2019, 07:57 AM
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Well with conflicting info here and from our dealer we’ve gone with the “no problem” opinions. We have the towing package on our 2017 Limited Platinum HiHy and took our 1500 lb popup camper about 300 miles from Houston to San Antonio and back. It towed like a champ, like the camper wasn’t even there. Much better than our old Honda Odyssey3.5L V6. We’re sold, and looking forward to lots more camping trips! We did drop from a 27 average MPG to to under 15 but that’s to be expected. And we DID follow the manual’s advice and DID NOT use cruise control, even though it was mostly level traveling with few hills or upgrades.
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post #202 of 202 Old 02-05-2019, 02:42 AM
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Smile

My advice if you are shopping for a new vehicle and you need to tow alot is buy a vehicle designed from the ground up to do heavy duty towing.

My salesman said no when I asked him about a towing package.
Since I do not normally tow this was not a deal breaker for me. Strongly suggest a HD truck or 4 Runner for towing.

So the question is does the Platinum have any prewiring etc for a hitch?

Great thread BTW and right on topic.

2019 Platinum Hybrid

Last edited by etp7; 02-05-2019 at 02:48 AM.
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