P15a1 2010 gmc terrain? What code is that and how to fix it?

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Carguy1 · Answer 1 · 2018-05-28T19:39:45+0000

Hi there,

This code indicates an issue with the fuel economy mode switch. Here is some info for you.

P15A1 GMC - Fuel Economy Mode Switch Performance

Read more: https://www.autocodes.com/p15a1_gmc.html