I've spent the last few days reading dozens of threads on this here and still am at a loss as of to how to best get a new MYP with HW 4.0 to tow so i can get rid of my gas tow vehicle. My MYP is an inventory car that I put a deposit on, so I was unable to add the hitch option. It's due to arrive in a couple of weeks and I'd like to get this squared away sooner rather than later.
A few points to consider for this thread: I do not want to read discussions about crash protection or the safety aspect of towing without tow mode activated so please don't drag those dead horses into this thread.
I do NOT want to lose my FSD by having Tesla install their hitch and activating tow mode for $1,300. This is an absolute last resort.
My second-to-last resort would be to have Tesla install their hitch and NOT activate tow mode if possible. I've seen some posts saying that it's automatically activated when Tesla hooks up their hitch or wiring somehow and not manually activated by the tech. Not sure how accurate that is.
I also see multiple posts saying that Tesla is not yet stocking the necessary parts for towing to be added post-build MY's with HW4.0 for some reason.. Not sure what's different or if this is still the case. I have not taken delivery of my newest MYP so I cannot confirm this in the app.
It seems like the Draw Tite hitch is the aftermarket best option with EcoHitch in 2nd.
However I'm at a loss about the wiring hook-up. Is there a basic trailer 4-wire or 7-wire hook up already in place behind the bumper? If not, where do I find the correct wiring harness to add to the vehicle? A search online has come up with nothing. I've emailed Draw Tite and they have not responded.
If there is already a trailer plug in place, is it active or not? If not, how do I activate it without needing to have Tesla do it?
To make things more complicated, I found a post by @k24a2 stating that Model Y cars made after 2022 are usually missing the Front Left Body controller chip to control/give power to the rear trailer hook up. Does this mean I am stuck going to Tesla only, or can I order just this part from Tesla and add it myself? Tesla puts it down as a 45 minute job. Factory Service Bulletin about this here
However, reading his post carefully:
Can somebody explain to me as if I were a simple child, what he meant by his last sentence? It sounds like he found an aftermarket controller and wired that to an existing factory 7-pin factory plug that may already be in place behind the bumper in order to use a 4-wire trailer plug? In which case the factory cars come with a 7-wire plug already under the bumper and working? Yea or nay?
-Paul
A few points to consider for this thread: I do not want to read discussions about crash protection or the safety aspect of towing without tow mode activated so please don't drag those dead horses into this thread.
I do NOT want to lose my FSD by having Tesla install their hitch and activating tow mode for $1,300. This is an absolute last resort.
My second-to-last resort would be to have Tesla install their hitch and NOT activate tow mode if possible. I've seen some posts saying that it's automatically activated when Tesla hooks up their hitch or wiring somehow and not manually activated by the tech. Not sure how accurate that is.
I also see multiple posts saying that Tesla is not yet stocking the necessary parts for towing to be added post-build MY's with HW4.0 for some reason.. Not sure what's different or if this is still the case. I have not taken delivery of my newest MYP so I cannot confirm this in the app.
It seems like the Draw Tite hitch is the aftermarket best option with EcoHitch in 2nd.
However I'm at a loss about the wiring hook-up. Is there a basic trailer 4-wire or 7-wire hook up already in place behind the bumper? If not, where do I find the correct wiring harness to add to the vehicle? A search online has come up with nothing. I've emailed Draw Tite and they have not responded.
If there is already a trailer plug in place, is it active or not? If not, how do I activate it without needing to have Tesla do it?
To make things more complicated, I found a post by @k24a2 stating that Model Y cars made after 2022 are usually missing the Front Left Body controller chip to control/give power to the rear trailer hook up. Does this mean I am stuck going to Tesla only, or can I order just this part from Tesla and add it myself? Tesla puts it down as a 45 minute job. Factory Service Bulletin about this here
However, reading his post carefully:
For cars that are built after 2022.. The Front Left Body controller is missing the chip to control/give power to the rear trailer 13pin plug....
Only way is to upgrade the body controller with the one capable with tow mode...
Attached is the bullitin for body controller upgrade...
I found out this after I bought a after market hitch and trailer plug...
But now I just wired a aftermarket 4pin trailer controller, and wire a 4 pin to 7 pin trailer plug and ran the wires the old ways
Can somebody explain to me as if I were a simple child, what he meant by his last sentence? It sounds like he found an aftermarket controller and wired that to an existing factory 7-pin factory plug that may already be in place behind the bumper in order to use a 4-wire trailer plug? In which case the factory cars come with a 7-wire plug already under the bumper and working? Yea or nay?
-Paul