How do I fix car door lock?

It's possible that the locking mechanism in your Vivaro van's driver's door has become jammed or broken, causing your key to turn without unlocking the door. Here are a few things you can try to get your door unlocked:

1. Try another key: If you have a spare key, try using it to unlock the door. If the spare key also doesn't work, then it's likely a problem with the locking mechanism.
2. Spray lubricant into the lock: Sometimes, the locking mechanism can become jammed due to dirt or debris. Try spraying a lubricant such as WD-40 or graphite powder into the lock and then gently turning the key to see if this helps.
3. Use a lock de-icer: If the weather is cold, the lock may be frozen. Try using a lock de-icer to thaw the lock before attempting to turn the key.
4. Call a locksmith: If none of the above methods work, it's best to call a locksmith or a professional mechanic to help you gain access to your van.

In any case, it's important to get the issue fixed as soon as possible to avoid being locked out of your van again in the future.

Is this the automatic locking from the key fob? What vehicle? This is hard to answer without more info, but this time of year a likely situation is that your locks are frozen using some lock de-icer or heating up your key is a good option. If the freezing problem is severe, your locking mechanism may have broken.

Key on but dont start
press the reset button near the pedal for 5s until light disapper
remove key
press lock unlock using manual button on door.
press lock unlock button on key while inside the car
unlock again using key
insert key and fire.

Its probably froze if you live in a cold state. If that is the case you can get some lock de-icer and put that in where the key goes or if you have a remote start and the heat happens to be on then it might thaw it that way.

does the key turn and no feel of linkages or is the key cyl siezed spray lube in cylinder aswell as de icer if there is no feeling loose key remove door skin and check linkage to key cyl with window up

it sounds like the linkage is now broken or the latch inside the door is not working or is disconnected. I live here in Alaska and I have seen and worked on this same problem many,many times. -- one thing you can do is remove the inside door panel to expose the linkage rods and make sure that one of them did not get unhooked while you were trying to slim jim the door. if a linkage is disconnected then just reconnect it ( as long as the clip is not broken -- you can get new clips at either the dealer or a automotive locksmith shop. but when you do get to the inside of the door what you will see is -- one rod going from the lock to the latch,, one rod going from the latch to the lock/unlock button,, there will be a rod going from the outside door handle down to the latch and there is also a rod going from the inside door handle to the latch. the one you want to look at is the one from the lock to the latch -- if it is loose, then it is disconnected, re-connect and you should be good to go. also to help keep this from happening again, spray lubrication into ALL your locks and cycle key in and out a few times and re-spray ( use ONLY Teflon based lube -- like Tri-flow* or LPS,, NO WD-40 !!! ) this will help keep all the moisture out of the pins and waffers in the lock itself, also while doing the panel removal and latch fixing keep the car in the warm garage to help dry out any moisture that may still be in the door and locks. I hope this helps -- when you start to pull things apart feel free to drop me a line if you have any questions (( [email protected] )) ,, I have been a locksmith for 18 years and I have torn down many door panels and I can walk you through the whole thing.. BUT if you do not want to get your hands dirty -- just make an appointment at your local automotive locksmith shop and for $20 -$35 dollars they will do all this in about 30 to 45 minutes,, plus they willl lube everything up for you and you will have hassle free locks for a long time. hope all works out well --- and Happy NewYear !!

c...

This is moisture in the lock or associated hardware. Heat the key or use a de-icer in the lock.

• If it's simply the car door lock that's frozen, try heating your car key with a lighter and inserting it into the lock. The heat from the metal may be enough to thaw the ice and allow you to unlock it. To ensure that the lock will not freeze again, spray it with WD-40.
  
  
• If the entire door is frozen, carefully chip the ice away from the edges with a scraper. Be careful not to scratch the paint of the car. If you cannot chip the ice away, try pouring some windshield washer fluid on the icy areas; windshield washer fluid contains alcohol and this may help melt the ice.
  
  
• Use a blow dryer set on high to melt the surrounding ice.
  
  
• The best way to open a frozen car door and prevent future frustration is to purchase de-icer. Many good brands are available at hardware and auto shops - just be sure the solvent displaces moisture and leaves behind a lubricant. If the lock itself is frozen, spray the product directly into the key hole, wait five seconds and then put in your key and try to turn it. Most of these products have straws that help direct the product out of the can and into small areas, making the de-icing process easy.
  
  Once the door is open, consider spraying the de-icer along the hinges of the door to keep other parts from freezing. Keep the de-icer in your home or garage where you can easily find it. Do not keep it in your vehicle. Having de-icer in your frozen vehicle won't do you much good.

Please consider the following...
15 year old car.
Normally uses remote unlock (key remains unused).

Possible solution, open keyhole cover by particially inserting key. Place WD-40 or other silicone spray lube in the key hole (lots). Operate the key several times... eventually, it will clean the unused parts and open the door.

Had same trouble with my 406, fixing no problem, with new battery in fob, insert into ignition, turn key, BUT DO NOT START ENGINE, hold button for about 10 seconds release button and remove key from ignition, then try and see if doors lock on remote, if not try again, had to do this a couple of times, and it worked, sorry to say that now my key fob button has completely fell apart, through ware and tare