The fob will not lock or unlock doors

thats normal gm programmed their alarm system that way

door reciever or lock has issues
did you scan the car first.
does the receiver put 12dc to the unlock solenoid.
if yes the solenoid is bad.
if not the receiver has issues. (check connections first there)

You should be able to close all doors and use the key to lock & unlock drivers door 2 times each & it should reset all-Good Luck if I didn't see this till too late,JT

Sounds like the remote receiver module in the car is malfunctioning and will probably need to be replaced.

Here are the options for disarming a factory alarm while it's going off:

1. Close all doors, trunk and hood. Alarm will stop after preset time.

2. Hit the unlock or lock button on the remote. (One of the 2 works... I just don't remember which.)

3. With all doors, trunk and hood close, insert the key in the driver's door and unlock/lock the doors manually.

Also, is it a factory security system? Is it a honda key fob? or a remote start system perhaps?

Hi,
Kindly submit the question under 1999 Toyota Avalon section on the website by clicking this link so that the best car experts can view and post a solution to the problem.

Thanks for using FixYa.

You should be able to just unlock the door with the key, and even if the alarm is still going of try to start it the key should override the alarm.

Assuming the car battery is ok (if not, buy a male to male cigarette lighter at the auto store and connect to another car until charged enough to unlock the doors...but don't try to crank the ignition!). The trunks won't open if the battery went dead with the alarm set because arming the alarm physically locks the releases.

Sounds like the key code is switched off because you replaced the key fob battery. Try unlocking the car manual with the key in the door lock. Then switch the ignition on to reactive the keyless entry. If this does not work, you might also try pressing the fob unlock button with the key in the door lock until the dash led flashes.

replace the battery in the key fob and unlock the car with that, if u last locked the car with the key fob, you armed the alarm and can only be disabled by unlocking with the key fob, the car wont start because its an anti theft feature.

1) remote starter was not hooked up to the factory arm wire
2) trunk release was programmed to disarm factory alarm before popping trunk
3)parking light wire on remote starter was not hooked up
4)disarm wire from remote starter was not hooded up
5)this is not normal and they should fix the problem or have it done by some one else and have them pay for it, how much did they charge,
Bring it over I'll fix it right and not charge overpriced amount