2005 Buick Rainier will not start but will crank over,also can not get shiftier to move out of park.

Question edited for clarity and correct spelling of model name.
Question moved to model category.

Repair door handle driver side 2006 buick rainier

JustAnswer https://www.justanswer.com > Buick Repair
Mar 2, 2010 - Remove the 2 trim panel retaining bolts (1 and 2). Use a trim tool in order to release the 9 trim panel fasteners from the door. Remove the trim ...

1 answer · Top answer: OK, below are instructions. Object Number: 690976 Size: SH [//f01.justanswer.com/ref/http_gsi.xw.gm ... It will be similar to this video.

Question edited for clarity, 'Boss' with two s.
Question moved to model category.

Try this from the manual

https://ownersmanuals2.com/buick/rainier-2005-owners-manual-76905/page-176

and also

How do I change the time on my boss audio system?"
To display clock time, press and hold the CLK button on front panel. 2. To set clock time, press and hold the CLK button and the hour will 3. Press the or button or press the NEXT or PREV button to adjust the hour.

contents - Boss Audio

..

The video shows the whole thing on a LeSabre. This link shows the belt routing and where to get a new belt.

https://www.google.com/search?q=2005+buick+rainier+serpentine+belt+diagram

I recently had my engine replaced in my 2002 grand marquis 4.6 with a 2009 crown Vic 5.4 engine and was running fine until I broke my ignition and tried to replace it myself I bought a new ignition switch didn't work so I bought a steering column and still won't start what do I do

Easy fix, it's your transmission linkeage bushings. They do break because they're plastic. Dorman makes them.

if the car is on a steep incline could prevent it from engaging

Looks like a common problem on lots of GM vehicles. You should watch this video before fixing your problem, which is in the
Secondary Air Injection System:

How to test an electric air pump P0410 case study

try to tap the seat motor with something while moving the controls forward or backwards. 

You probably have a sensor going bad and the trans is protecting itself by going into limp mode. Check the fluid level while trans is warm and car is parked with engine running.