The truck is a 2013 Yukon xl Denali, 6 speed awd. It won't register park or manual from the shifter, even though it physically is in park(I double triple checked this and set the parking brake hard just in case). If I go to neutral, I can start it. But it won't unlock the doors, or even if I unlock it, I can't open th e tailgate. Luckily the hatch glass still opens. So where's the sensor that tells the pcm shifter position? Steering column or at the trans?
Won't register park electrically
- Thread starter LazloZ28
- Start date
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CaptainAmerica1
Full Access Member
Transmission manual shift shaft position switch assembly
Last edited:
It’s on the trans. The neutral safety switch.
CaptainAmerica1
Full Access Member
Trans
the neutral safety switch works, that’s how he can start it in neutral.
TollKeeper
Full Access Member
Not necessarily, if the bushings, or contacts, in the park position, are out of wack, it will do this.
Edit: I have seen this before on a silverado. The truck had been repoed, and they popped the linkage off at the transmission so they could tow it. It wallowed out the bushing at the Neutral Safety Switch. I cant remember if they replaced the bushing, the shift cable, or the NSS.
Edit: I have seen this before on a silverado. The truck had been repoed, and they popped the linkage off at the transmission so they could tow it. It wallowed out the bushing at the Neutral Safety Switch. I cant remember if they replaced the bushing, the shift cable, or the NSS.
Well the neutral position on it works but it’s not registering the park position, it probably thinks it’s in reverse. It might just need adjusting.
It was the nut that fastens the shift lever to the trans. It must've just been loose, it left all together today and I couldn't shift at all. Luckily I parked where I didn't have to back up and didn't just shut it off and was able to get it home. Took longer to find a nut in the hardware cans than to fix it. Just goes to show you, don't throw out those "spare" nuts and bolts. Also, probably, don't just keep driving it if something like this is happening,lol.
Yeah I have a coffee can with all kinds of nuts and bolts off GM's that I keep around. I'm always looking for one. Glad you got it fixed.
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