This is what the manual says but I have not been successful
Deactivating/activating the autolock feature
Before following the procedure, make sure that the ignition is OFF and
all vehicle doors are closed.
You must complete steps 1-7 within 30 seconds or the procedure will
have to be repeated. If the procedure needs to be repeated, you must
wait 30 seconds.
1. Turn the ignition key to ON.
2. Press the power door unlock control three times.
3. Turn the ignition key from ON to OFF.
4. Press the power door unlock control three times.
5. Turn the ignition back to ON. The horn will chirp.
6. Press the unlock control, then press the lock control. The horn will
chirp once if autolock was deactivated or twice (one short and one long
chirp) if autolock was activated.
7. Turn the ignition to OFF. The horn will chirp once to confirm the
procedure is complete.
Instructions are in owners manual to disarm
On some newer GM vehicles you can disarm it. But I do not know if this is even possible on your Suburban, and really think it is not possible to disarm the auto lock feature on this model. Have you looked in your owner's manual? If it is not listed there, you may have to access a shop manual. Call you local GM dealer for advice.
If you unlock the car but do not switch the ignition on within about 30 seconds, auto-lock will lock the doors again. It's a feature to stop you accidentally leaving your car unlocked
The auto lock feature cannot be disabled. However, the dealer can re-program it to unlock all doors after the key is removed.
Find your fusebox and see if you can find the fuse for the auto door lock mechanism. Just pull the fuse out and it should take care of the problem.
its a feature on these cars that you can change if you want read your owners manual
You can view the 1998 Ford Explorer owners manual online at : www . motorcraft service . com ( no spaces ) Click on Owner Guides The instructions for disabling the auto-lock feature are on ( page 63 )
If it's anything like my 98 avenger. All you have to do is re lock the car with the key or if you have a key fob lock it that way. It should disarm it once it goes off
The only way i found to disarm the alarm was to use the back hatch lock. lock it and unlock it a few times with the key. if this doesnt work try the door locks
use the trunk key and turn it one way or the other in the trunk lock and hold it for a few seconds. This should disarm it.
How do you fix the cable in side of the back doors of a 2000 ford f150
Your 1998 F150 has 3 relays for your power door locks : an all unlock relay / a driver unlock relay / and an ALL LOCK RELAY I'm guessing that the ALL LOCK RELAY has failed I'm sorry but I haven't found the location of the power lock/unlock relays on your F150 yet ( does anyone know the location of the power door lock / unlock relays on a 1998 F150 ? )