Parking assist warning light is on. I have a 2006 Cadillac dts.

SOURCE: how to remove head light in 2006 dts cadillac

ok, In this New of a vehicle there are no screws holding the headlight in if you just need to replace a headlight because it is burned out. Look at the back of the light where the wires attach and you should see the wires going into what appears to be a coupling. Get a hold of that and turn. After it unlocks you can remove and replace the bulb. If you are replacing the Headlight assembly because it was damaged there are typically 2 long scews on the top front that appear to be adjsutment screws and 2 smaller ones in each side, again on top. Good Luck

SOURCE: how to change spark plug on 2006 cadillac DTS

The plugs are located by engine head. You can use a ratchet wrench and sockets to remove them. Make sure to mark the plug wires so the order doesn't get mixed up.
The check engine light comes on when there is a bad sensor, or bad circuit.
Many part stores will run an engine diagnostic code scan for free which will pinpoint exact problem that is setting of the check engine light
The light can only be shut off by the diagnostic scanner!!

SOURCE: 2006 cadillac dts - one of the headlights want

Have you changed the bulb on that side of the car? If a bulb is broken or burnt out it will not light up.

SOURCE: how do you change the headlight bulbs on a 2006

you should have to go thru under the hood to the backside of the lamp assembly. There should be either a hard plastic cap or a plastic dust cover that has the wires going thru it to the lights. If it is the hard cover (looks like a jar cap) turn it 1/4 turn counterclockwise and pull it out of the way. Take the bulb/socket out. Unclip the old one- Put the new one in. (DO NOT TOUCH THE GALSS PART OF NEW BULB). Then re-assemble

SOURCE: how many quarts of oil does a 2006 cadillac dts hold

Hi!!

It holds 7.5 quarts. If you need a copy of your owners manual give me an e-mail address to send it to.

Don't forget to rate this answer.