Car won't start after using Auto headlights on 2005 Lexus LS430

Correct. It is a Shift Solenoid issue.

2004 lexus ls430 giving code p0756 and not shifting properly

https://www.fixya.com > ... > 2004 Lexus LS 430
Nov 20, 2019 - Here is the definition of the code. P0756 TOYOTA Description Shift solenoid valve B is turned ON or OFF by the Transmission Control Module (TCM) in response to ...
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The latch is most likely the issue. If the trunk is used a lot, the latch is misaligned or a foreign object obstructed the latch from closing. The latch itself could be damaged. Carefully inspect the opening of the latch and look for bent, mushroomed or damaged steel. I would have to see to know for sure, how to proceed.

You must have the dealer scan the system with a special tool to see what is causing this unwanted activation of the vehicle stability control system.

Check your gas cap, it may not be sealing properly that's why your getting the VSC light on the dashboard. Eventualy the light will go out after you fix. Good luck.

You will need to purchase a new NAV disc, latest version specific to the 2008 LS, just released at your Lexus dealer, likely version 9.1. Enjoy the ride AWESOME car

check your height sensor on your suspension. theres 4 sensors that look at ride height for the headlights to adjust when going up and down hills. you may have bent one when working on the car.

go to auto zone, advanced autoparts, or a certified mechanic and ask if they can reset the codes, it should be free

The adjustment screws/nuts should be located either on the top of the headlamp assembly, behind the headlamp assembly, or near the frame rail by the radiator support.

You will have vertical adjustment screws for each independent beam (separate highs and separate lows, but will be same screw if highs and lows are the same bulb). You may also have additional horizontal adjustment screws as well

Park your car on a level ground 30 feet from a wall and measure the height from the ground to the bulb and mark on a wall (do this for highs beams and low beams if the bulbs are separate, if highs and lows are the same bulb, only do it for the lows)

For Low Beams: If the headlights read VOR, then aim the brightest part or cutoff part just below the mark on the wall. If it says VOL or nothing, aim them 2 inches below the mark on the wall.

For High Beams (if separate from low beams): Aim the headlight directly at the line you marked on the wall.

THE DEALER PROGRAM THE REMOTE OR DOWNLODE THE AUTO MANUAL.
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I say a factory warranty is always worth the money, but read the fine print.