Downhill Assist Control DAC system activation

Tiny
APPSHEETSCREEK
  • MEMBER
  • 2015 TOYOTA HIGHLANDER HYBRID
  • 3.5L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 78,000 MILES
Almost all mid and top of the line 2015 Toyota Highlander cars have Downhill Assist Control DAC system. But, for some reason, not the top of the top of the line. We bought the Platinum version of the 2015 Highlander Hybrid and noticed that the DAC feature was removed, even though there is a space under the dash for another button, and the intelligent cruise control and traction control are already activated. Nevertheless, I really want to add the DAC to our car as we live among steep rolling hills with snow and ice in the wintertime and every year, we find ourselves kicking ourselves for not having this feature to slowly traverse the tricky slippery areas. Is it possible to add it now to our car? Please help! Thanks!
Thursday, September 30th, 2021 AT 6:18 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Hi,

You have a very good question, and I believe I found the answer. I did research on this vehicle. The downhill assist control system is available on non-hybrid vehicles. However, I went through two manuals and both show the system but are listed under "non-hybrid" vehicles. When I go specifically to a hybrid, the circuit is not listed.

With that information, it is not available on a hybrid vehicle. Therefore, I don't feel it is something that can be added. If it was possible, it would have been included or an option. Although you see the place for the switch, it is likely for the same vehicle in a non-hybrid model.

I wish I had better news for you. However, this is what I'm finding. Let me know if you have other questions.

Take care,

Joe
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Thursday, September 30th, 2021 AT 8:30 PM

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