Hi,
I recently Bought a 2021 Rav4 Prime XSE. Where I live, it can easily get to -30c. Because it was not originally in my province it did not come with a block heater. Where I am a blocker is only required on new vehicles. I also have to park outside as I do not have a heated garage.
I became interested in the Toyota Comfort+. I tried doing research on it and found that the information on this was lacking. Also the dealership I went to does not seem to understand their products. When they gave me the items list it was missing items. For example, the Defa cabin heaters comes in either 1000w and 1200w options. The toyota manual contains the stats for both options. Both options also show up on the tag on the power cord you plug in. There it implies that you can have a 1200w cabin heater with a 200w block heater or a 1000w cabin heater with a 400w block heater. The Parts department did not know what I was talking about. Both heaters are mentioned in the specifications page in the Toyota manual.
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I also am not entirely clear on the performance issues of these units. A few things have seemed clear. The heat pump is pointless after -10c. I've seen some comments that on colder days they say the cabin heater cannot keep up. This still leaves me with a few questions. At what temperature is it that it can't keep up? Does it at least take the edge off the cold/better then nothing? Is there a point where the windows wont clear?
I have decided to install it myself. I am also going to install this in stages. Mainly because of cost. I still have to get my winter tires in order. Below is the expected cost in parts. I expect it to end up at $861 CAD
So far, The only 2 parts I do not have are the block heater and the cabin heater.
Block heater
Considering 0w16 flows freely at -40c im not as worried. As long as it starts it should be fine. If I do it it will be more for consistency and what is expected where I live. The problem is, I'm not sure exactly where it goes or even if I can access it. My best guess is on the drivers side of the engine towards the rear but that is a very cluttered area. Also if the only option is the 400w then that would restrict me to a 1000w cabin heater. I would rather try the 1200w cabin heater. If I opt not to do the block heater and I can only get the 1000w cabin heater then I might try to source the Defa 1200w from another source.
Cabin heater
When I get it I will probably send the cable through the firewall on the passenger side grommet as it is very visible just standing in front.
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Bluetooth Hub
The most interesting thing is the Ignition wire. It is optional. It run from the ignition switch from under the dash to the Bluetooth hub. Its purpose is to send you a notification if it sees the car is on and you are still plugged into the house. This is so you don't drive away while plugged in. The manual even admits that this function is not compatible with all hybrids. While it would be interesting to hook up there are 2 strikes against me doing it. The grommet that is near the break cylinder looks very busy. As it is, it looks like there is a massive capacitor back there. I would need to remove the cowl to investigate. Also I don't think I will ever see a diagram for the ignition switch. I have no idea how it even works with the push button. To me it would make sense if that button was monitored by the computer. Then there is no need for that wire to be anywhere under the dash. The temperature sensor I will mount Behind the grill or bumper. I'll probably do that in I install the inlet cable.
The Trickle Charger
The 2 main things is where do I want to mount it and how do I want to connect it. Since the Booster terminal is in the fuse box I will probably tie into that. I don't see the need to run it to the trunk.
So far I have tested a few things by connecting enough cables to sync the Bluetooth hub to the app. I was able to use my phone to stop charging and I heard the inverter click off. I also updated its firmware. This was inside my house on my counter. Now I just need to schedule the install.
Before I do if there is anything I should be aware of let me know. If people would like a follow up then I would be more then happy to post it here and I move along this project. I hope to have this done before snow flies. Or at least before my hand freeze outside.
I'm also including a picture of the parts as reference.
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I recently Bought a 2021 Rav4 Prime XSE. Where I live, it can easily get to -30c. Because it was not originally in my province it did not come with a block heater. Where I am a blocker is only required on new vehicles. I also have to park outside as I do not have a heated garage.
I became interested in the Toyota Comfort+. I tried doing research on it and found that the information on this was lacking. Also the dealership I went to does not seem to understand their products. When they gave me the items list it was missing items. For example, the Defa cabin heaters comes in either 1000w and 1200w options. The toyota manual contains the stats for both options. Both options also show up on the tag on the power cord you plug in. There it implies that you can have a 1200w cabin heater with a 200w block heater or a 1000w cabin heater with a 400w block heater. The Parts department did not know what I was talking about. Both heaters are mentioned in the specifications page in the Toyota manual.
I also am not entirely clear on the performance issues of these units. A few things have seemed clear. The heat pump is pointless after -10c. I've seen some comments that on colder days they say the cabin heater cannot keep up. This still leaves me with a few questions. At what temperature is it that it can't keep up? Does it at least take the edge off the cold/better then nothing? Is there a point where the windows wont clear?
I have decided to install it myself. I am also going to install this in stages. Mainly because of cost. I still have to get my winter tires in order. Below is the expected cost in parts. I expect it to end up at $861 CAD
| Part # | Name | Paid (CAD) | Notes |
| PK5A4-89J14 | Block Heater | $ 120.00 | 200W |
| PK5A4-89J21 | Cable | $ 45.00 | From block heater to trickle charger |
| PK5A4-89J22 | 1.5m Armored Extention Cable | $ 35.00 | Extend length to cabin heater to trickle charger |
| PK5A4-89J30 | 0.8m Armored Inlet Cable | $ 45.00 | From bumper to trickle charger or block heater (if it is on its own) |
| PK5A4-89J40 | 2.5m Home Power Cord | $ 45.00 | Wall outlet to car |
| PK5A4-89J50 | +12V Battery Charger and Straight Bracket | $ 190.00 | Trickle charger |
| PK5A4-89J60 | Bluetooth Hub | $ 190.00 | Optional, This communicates with the app |
| PK5A4-89J70 | Cabin Heater | $ 235.00 | 1200W |
| 90119-A0429 | Bolt | $ 1.00 | To secure block heater |
So far, The only 2 parts I do not have are the block heater and the cabin heater.
Block heater
Considering 0w16 flows freely at -40c im not as worried. As long as it starts it should be fine. If I do it it will be more for consistency and what is expected where I live. The problem is, I'm not sure exactly where it goes or even if I can access it. My best guess is on the drivers side of the engine towards the rear but that is a very cluttered area. Also if the only option is the 400w then that would restrict me to a 1000w cabin heater. I would rather try the 1200w cabin heater. If I opt not to do the block heater and I can only get the 1000w cabin heater then I might try to source the Defa 1200w from another source.
Cabin heater
When I get it I will probably send the cable through the firewall on the passenger side grommet as it is very visible just standing in front.
Bluetooth Hub
The most interesting thing is the Ignition wire. It is optional. It run from the ignition switch from under the dash to the Bluetooth hub. Its purpose is to send you a notification if it sees the car is on and you are still plugged into the house. This is so you don't drive away while plugged in. The manual even admits that this function is not compatible with all hybrids. While it would be interesting to hook up there are 2 strikes against me doing it. The grommet that is near the break cylinder looks very busy. As it is, it looks like there is a massive capacitor back there. I would need to remove the cowl to investigate. Also I don't think I will ever see a diagram for the ignition switch. I have no idea how it even works with the push button. To me it would make sense if that button was monitored by the computer. Then there is no need for that wire to be anywhere under the dash. The temperature sensor I will mount Behind the grill or bumper. I'll probably do that in I install the inlet cable.
The Trickle Charger
The 2 main things is where do I want to mount it and how do I want to connect it. Since the Booster terminal is in the fuse box I will probably tie into that. I don't see the need to run it to the trunk.
So far I have tested a few things by connecting enough cables to sync the Bluetooth hub to the app. I was able to use my phone to stop charging and I heard the inverter click off. I also updated its firmware. This was inside my house on my counter. Now I just need to schedule the install.
Before I do if there is anything I should be aware of let me know. If people would like a follow up then I would be more then happy to post it here and I move along this project. I hope to have this done before snow flies. Or at least before my hand freeze outside.
I'm also including a picture of the parts as reference.
