Can`t detect parking brake on

Group using the GM3 and GM5 firmware for Onstar bluetooth, sat radio, Door chime, turn signal retention and steering wheel control, custom gauges, vehicle info, park assist... * see specific firmware for full feature list.
Post Reply
New User
Posts: 1
Joined: Tue Aug 07, 2018 8:36 pm

Can`t detect parking brake on

Post by 56kz2slow » Tue Aug 07, 2018 8:42 pm

I just installed a Pioneer Nex with a Maestro RR with the GM3 kit in my 2015 Sierra. Installation went as planned, everything works. Well almost.

There's a few features that only work when parked with the parking brake on and they don't work. The Pioneer has a light green wire in the harness that is supposed to connect to the light green wire on the GM3 harness and that`s done.

Any ideas?

User avatar
Dara DeGrand
ADS Team
Posts: 5500
Joined: Mon Dec 02, 2013 1:34 pm

Re: Can`t detect parking brake on

Post by Dara DeGrand » Wed Aug 08, 2018 8:20 am

Have you tried engaging the parking brake, releasing it, and engaging it again? Pioneers need to see multiple pulses on the brake wire in order for you to get into the menus.
Dara DeGrand
Maestro Technical Support Manager
Automotive Data Solutions Inc.
8400 Bougainville, QC
T 514.807.2888
TF 866.427.2999

Post Reply

Return to “Chevrolet, GMC, Buick, Cadillac, Pontiac, Saturn, Hummer”