Over the last 3 days, weird things happening to my van.

1. while driving,error on dash , rear left tail light out,. tried directional signal, lights blinks fast indication bulb out. After driving about 2 minutes error disappears. signal works fine.
2. 2 minutes later gas cap error appears, then disappears after 2 minutes.
3. 2 days later while parked in garage, rear hatch opens by itself.

Any ideas?

 

For problem 1, if still happening and the bulb is not working correctly, try removing the bulb (check if the bulb filaments are still intact), cleaning the contacts of the bulb and the socket, and applying dielectric grease to the bulb bottom before reinstalling. This solved the problem when it happened to me and my bulb was not burnt out.
For problem 2, I had to replace the gas cap when this happened to me (I've replaced the cap a few times in the years I've owned the van for the same problem). Have you ever replaced the cap since you've owned it? Also, make sure you always turn the cap 3 or more clicks after refueling. These steps solved my problem when it happened.
For problem 3, This I've not had happen to me (yet). Has it happened again since?

 

How old is the battery and what is its condition? Chryslers do no tolerate low voltages which can be caused by a weak/failing battery and will exhibit all sorts of weird and unrelated issues.

The battery should read 12.2+ volts with the engine off. Wait at least 20 minutes after the engine has been shut off to let any residual surface charge in the battery to dissipate. I consider anything less than 12.2 volts as marginal and should be scheduled for replacement. You may want to check the battery terminals for corrosion and the body ground points for corrosion as a corroded connection can cause a low voltage condition.

 

Problems 1 & 2 have never happen again. BUT Problem 3 may have been solved. Having my T & C serviced almost exclusively at the dealership where I purchased it, I have built a good and friendly relationships with the service writers there.
I called my present service writer to make an appointment for my concerns. He recommended I do a few things before making an appointment. He mentioned a few problems with the FOB causing mystery problems e.g sliding doors and hatchets mysteriously opening. My second FOB is carried my the Mrs.in her handbag.
The service writer recommended disabling this second FOB opening it and removing the battery. Upon opening this FOB I discovered 3 loose parts. These parts are supposed to be positioned under the push buttons on the FOB to actuate its assigned purpose. Since disabling this FOB, no mysterious rear hatch opening ! ! !

I have checked the bulb socket and bulb and all looks good.
I have checked the gas cap and tighten to 3 clicks now.
My main battery is just 1 yr old but tested and check its connections too. OK

Mahalo. (Thank You) both for the good advice.

 

Glad you got the FOB part figured out.
Might also consider checking all of the ground locations. These notorious for developing bad grounds.
Also on my 08 I occasionally need to perform a TPPM reset. Mine will get flaky with weird intermittent lights.
Every few months I will disconnect both battery terminals. Hook them together and leave them that way over night.
This drains all of the capacitors. Dont know why it works. But it does.

 

Coz2215 Thanks for the advice ! No strange occurrences lately