GMC Troubleshooting Questions? Ask a Mechanic for Answers
Hello, I am Randall , did this just happen? anything lead up to this? engine size?
HUmm, not thinking switch related, could be, could be the lock tumbler but more common? the brake light switch, No, brake lighst may still work but there is another circuit in the brake light switch that activates the solenoid at the shifter to unlock it., May be brake light switch but,, with this information about hard turn tumbler? could be the lock/key tumbler. I am leaning more to the brake light switch
When you turn key to ON? if you listen carefully, when you hit the brakes you should hear a light click, That is the solenoid. Again, could? be tumbler. just more common is brake light switch, I inlcuded a link to a picture of it on the brake pedal bracket