Interior lights won't go off while driving.trunk lid says ajar but it's not

Trunk Ajar Indicator Always On
Step
Action
Yes
No
Schematic Reference: Body Rear End Schematics
1
Did you perform the Body Rear End Diagnostic System Check?
Go to Step 2
Go to Diagnostic System Check - Body Rear End
2
Close the rear compartment.
Is the trunk ajar indicator illuminated?
Go to Step 3
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
3
Install a scan tool.
Turn ON the ignition with the engine OFF.
Close the rear compartment.
With a scan tool observe the trunk ajar switch signal input in the BCM data list.
Does the scan tool indicate the trunk ajar switch signal is active?
Go to Step 4
Go to Step 7
4
Disconnect the rear compartment lid ajar switch.
Is the trunk ajar indicator illuminated?
Go to Step 5
Go to Step 6
5
Repair a short to ground in the signal circuit of the rear compartment lid ajar switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 9
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6
Inspect for poor connections at the harness connector of the rear compartment lid ajar switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 9
Go to Step 8
7
Replace the instrument panel cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gages, and Console.
Did you complete the repair?
Go to Step 9
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8
Replace the rear compartment lid ajar switch. Refer to Rear Compartment Lid Ajar Indicator Switch Replacement .
Did you complete the repair?
Go to Step 9
--
9
Operate the system in order to verify the repair.
Did you correct the condition?
System OK
Go to Step 3

SPRAY WD 40 INSIDE THE FEMAIL SIDE OF THE LATCH

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.

The switch is located in the latch of the trunk, make sure the wire connector to the switch is not pulled loose or otherwise damaged.

Remove the bulb if you think it runs the battery down. the switch is part of the latch assembly of the trunk.

This can be caused by a door or trunk being ajar, be sure you shut all doors firmly, if there is still no resolve check by shutting all doors then open one up and press the button (if any) on the inside of the door jam and see if it is broken or the light goes off.

can you access it from the back seat.? you might have to remove the bench seat and then the back rest to shine flashlight to see if indeed something is jammed in the latch.

Lower the back seat and crawl into the trunk and see what the latch is doing when you activate the key fob. the trunk lid will have to be open to enable any repairs. Also an emergency release cable is probably visible (yellow handle) inside the trunk and will Open the trunk lid.

One of your door jam switches is bad or is shorting out. Check in door jams for plastic switches.

Check the ajar switch is working ok. This is by the latch on the boot lid to the left under a rubber cone cover. Whilst the boot lid is open push the switch fully in and see if the light is still on then you have a switch fault