[Zl1guyinSoCal]

'18 zl1 - (becoming more frequent)... when i shift into park i get the above msg, and have to wiggle the shifter a bit to get the car to realize it IS in park.

Is this(i'm hoping) a relatively inexpensive position sensor? Anyone with this issue? Solutions?

34k miles.

No mods.

No codes(no light on)

[Katech_Zach]

Oddly enough, I have this same issue in my 18 Malibu. I want to say it is the shifter assembly, but i do not know.

Have you had the shifter ever our of the car (or the trim around it?), I thought mine was caused when I disassembled it and wrapped the wood trim to brushed aluminum. Started happening after I reassembled it

[george]

Originally Posted by Katech_Zach

Oddly enough, I have this same issue in my 18 Malibu. I want to say it is the shifter assembly, but i do not know.

Have you had the shifter ever our of the car (or the trim around it?), I thought mine was caused when I disassembled it and wrapped the wood trim to brushed aluminum. Started happening after I reassembled it

It's a known issue with the 18 Malibu and Camaro, a TSB is out on it. See below.

https://www.tsbsearch.com/Chevrolet/18-NA-297

BTW, Zach, I just changed the oil and had an oil analysis. The oil pressure still at 29-31 at idle.

[#8ZL1Man]

I put an aftermarket carbon fiber knob on and it was the cam up inside the knob getting 'sticky' to the point the shifter mechanism spring could not push it back.

The carbon fiber process had left some crud up in there and I had to take it back off, remove the knob cap, and clean it out with a screwdriver.