Key doesnt turn to off position, it stays in run or forward position! Its my sons 2004 saturn ion coupe

try turning your steering wheel from left to right while you gently try removing the key. if that doesnt work and your car is a automatic with the shifter in the center console there is a cable running to the transmission that sometimes becomes loose causing the car not to be fully into the park position.

There is a relay under the hood in the fuse box. Check that and the fuses and if they are ok, it is the BCM and those are not cheap.

It is. You have damaged or disrupted the passlock antitheft system.

This link explains and there are some solutions on there too that you can do to fix this yourself.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

is the button pushed or on the dash to dim the dash lights is that turned for the dome light is on. if none of that then the switch in the door is bad/shorted

probably a dead battery, cold is a car batteries worse enemy.

I think you may suspect the hazard (4 way flasher) switch at this moment. The indicator wiring goes thru the Haz switch as standard because of the system requirments. Either a loose plug connector or improper reset hazard on / off position at switch. Good luck

its what your front bumper bolts to

GM has just came out with a recall for this problem. It involves the power steering motor. You will get a notice in the mail if your car is involved.

Good question, the answer is "yes", "no", and "maybe". GM shares a lot of parts internationaly with Opel, Saturn, GM, Chevy, Pontiac, etc. Especialy engine parts. Chassis and body is a different story. You may find tie rods, struts, etc the same, but a headlight won't fit from one to the other. If you've got a 2004 Saturn Ion, you likely have a 2.2 EcoTec. Pretty much all EcoTec parts will fit in one form or another, from one to another. Alternators, starters, etc. You may need to swap plug locations or types, but the actual hard part should "fit". You would need to go dumpster diving to compare or contrast. I guess it all depends on what you need? the Stick

More likely the transmission - could be the overdrive solenoid is stuck in the engaged position.