Stuck in trailer assist mode? No trailer to hook up and fix it? Here’s my solution!

SXTHElement · 2025-04-15T13:47:16+00:00

We're working on a new intercooler upgrade for the 4th gen Tacoma, and it's shaping up to be a solid improvement over the factory unit. The core features more charge air rows for better thermal efficiency, and we're using cast aluminum end tanks for improved strength and flow characteristics. Lower intake air temperatures during high-stress conditions are the main goal here. As most know, once IATs rise past a certain point, the ECU begins pulling timing and boost to protect the engine, which means power drops off. This setup is designed to delay that threshold and keep performance consistent for longer periods. The prototype is already in development. We're currently testing with 3D printed aluminum-magnesium end tanks to validate fitment and flow. Once we have it on the truck, we'll be posting dyno and temperature data so everyone can see the actual performance difference. If you're pushing your Tacoma hard or live somewhere hot, this will be worth watching.

evlfred

New member

Jan 5, 2025

#1

I towed my snow blower to get it serviced with my buddies utility trailer (4 pin) and my truck got the infamous “stuck in trailer assist mode” issue ever since. Tried all kinds of things and the dealer was two weeks out to try the TSB which they said my truck didn’t even qualify for (?!). So I ordered one of these 7 pin emulators off Amazon.

https://a.co/d/dZL16Ui

Plugged it in and it detected a trailer (made it “horse” cause I’ll never have a horse) and drove up the road with the emulator attached. Stopped with it running, Unplugged the emulator then drove a little ways and stopped. Got the trailer disconnected message and selected yes. Bam!!! All better!

Almost blew a gasket on the next stop when the light came back on but it was just snow on the back sensors whew.

You are all welcome!!

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