2009 Aveo transmission issues

SOURCE: 05 Chev Aveo stuck in park

I also own a 05 Aveo, same problem without the new stereo, could be your brake light switch I just replaced it and now get out of park no problem ($18.00) Autozone. 2nd problem could be your Brake Transaxle Shifter Interlock Solenoid. Save money ask Dealer for printout on how to install, I did. I hope this info helps out. P.S. try replacing brake switch first.

SOURCE: transmission will not shift

I am having the same problem in my 2005. Did you ever find a solution? Please let me know because this is really annoying. Thanks

SOURCE: 2009 Aveo 5 how do you reset the change oil

Try with key on, press gas pedal to the floor three times then turn key off & back on. This should reset it.

Testimonial: "WOW IT WORKED!!!"

SOURCE: 2004 Chevrolet Aveo Brake lights not working

A couple of days ago my brake lights on my 2004 Chevy Aveo wouldn't work, so I attempted to remove the lamp covers to check the bulbs. Also, before this my shifter would get stuck in park and could only be released by pressing the unlock gadget next to the shifter. Back to the brakes...Well, you open the trunk and remove the two screws just like the manual said, but it was very hard to pull off. There's 2 prongs holding the other half of the light on. The lamp will come loose by prying it (very hard). You think the cover will break, but it'll come loose. The bulbs were all OK.

After much frustration and internet info, the STOP LAMP SWITCH, GM#96436331 ($9.30 at Chevy dealer), which is located under the dash and has contact with the brake pedal, was defective. Once replaced, both my brake lights AND SHIFTING problems were cured. So if the brake lights suddenly don't work or you have problems getting the vehicle out of park, check the switch by pushing the prong (end that has contact with brake) of the switch in and out. If it doesn't retract smoothly...that's the PROBLEM. Good Luck.

SOURCE: I have a 2009 Chevy Aveo. When I start the car

Is it a 2009 or a 2005 do not mess with the air bag system unless you really know what you are doing.
I have found that this usually the sdm (the main module for the air bag system). Really needs to go to the dealer.