Transmission Solenoid problems of the 2010 Chevrolet Impala

The transmission shifter lever is stuck in park and the key is stuck in the ignition switch due to a very poor electrical design. The electrical wires attached to the connector that operates the solenoid that unlocks the transmission shifter button in the park position and that also connects to the ignition switch and operates various functions such as releasing the ignition key and allows the vehicle electrical system to be completely turned off ,breaks off due to electrical wires being too short and the back and forth movement of the shifter . Checking the online blogs this is a known issue that has been happening on several gm vehicles for some time without any recalls despite constant customer complaints due to the very poor design. Some dealers have suggested leaving the key in the ignition switch and unlocking and locking the vehicle with the key fob. This invites vehicle theft and by not having the electrical system completely turned off, the battery runs down as the accessories and ignition is still turned on and the transmission lights on the instrument panel remains lighted. Some customers have had repeat reoccurrences after having the issue repaired at a cost of between $500 and $600. After inspecting the operation of the shifter and the affect it has on the electrical wiring it is obvious that the wiring will fail and in the blogs as early as whilst under warrantee. I am concerned if there are any other issues that may occur especially safety ones as there is 5 wires I do not know the function of each wire . Can you please investigate this issue.

1) airbag light intermittently has gone on and off for months. I asked dealer about it, they said it would be expensive to diagnose because they would have to trace the wiring harness, removing seat and dashboard. Labor would be expensive. I complained to gm on a couple of occasions and was given a case#. I was told car is out of warranty, therefore, it would be my expense to have this diagnosed and fixed. Dealer said airbag would not deploy if light is illuminated. This a major safety defect. Fall 2013. 2) the rear window defroster stopped working last fall 2013. I had to pay for total repair as it was not covered under warranty. They said it was a wiring issue. Impala's have been known to have issue. Oct 2013. 3) the gas pedal fell off while I was driving. Dealer said they never experienced anything like that before, but would have to replace the entire assembly. Not covered under warranty, therefore, entire cost was mine. Saftey issue. Sept 2013 4) the evap vent valve and solenoid had to be replaced. System leak pressurized evap would not hold. Apr 2012 other issues have been reported/repaired, however, do not have paperwork at time of this complaint.