I would shift the car to park, key would not come out. Would have wiggle the key excessively until it would click over further counter clockwise and then release. WD 40 into the cylinder did not help at all.
Also the button you squeeze to pull the shifter out of park was very sticky.
I found a TSB on the issue which required pulling out the center console and adjusting the park lock cable mechanism, which is cable that goes into the side of the ignition cylinder. It looked like a lot of work. Also, that turned out not to be the issue.
Instead I pulled out the little coin (pen?) tray directly infront of the shifter. This reveals the cable in question. The raw cable is exposed before going into the outer cable.
I could see that the cable was getting hung up and not releasing smoothly.
Put a little WD 40 where the cable/ wire goes into the outer cable. Now the key releases perfectly, and the release for the gear shifter is much better. I could also swear that my MPG's and horsepower increased, j/k!
I hope this helps anyone else with this infuriating problem.
Really useful information. I'd like to point out that WD-40 is good for the water displament application but is a poor substitite for a lube (I should know, I use it to dry out wet skate bearings in a pinch).
Then if you look to the drivers right of the shifter there is a cable tension adjust knob. I had to release (turn clockwise) this knob a few times. This lets the pin that release the shift button all the way out rise all the way to the top. This pin can be seen from the passenger side if you take off the side panel to this center dash area. I also sprayed everything around these mechanisms with WD40 (I didn't have silicon spray) to make sure nothing is getting hung up. This seems to have fixed this really annoying problem and didn't take long even with me needing to figure out my own problem.
Similar issue, similar solution;
2005 Maxx LS; dealer did the Trans Recall repair, then the "key locked" issue occurred. Dealer (Momentum Chevrolet in San Jose) claimed "we didn't touch it, we won't fix it (unless you pay us)". So...
What happened is that when they repaired the transmission shift cable, they removed the wiring harness. When they replaced the wiring harness they did it under the shift cable but *over* the key interlock cable. removing the little cup in front of the shifter and adjusting the wiring harness fixed the problem.
Sammy, Thanks so much for this info. My key was doing something similar where I could almost turn it off, but the key would not fully move to the off position.
for a 2010 Malibu, there is a small plastic panel on the passenger side that is removable without tools. Once off, you can see the cable running from the shifter to the key switch. The plastic piece which attaches to the shifter had been stuck out of proper position. Once I jiggled the wire and moved the plastic piece, my keys came right out.
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