99 Oldsmobile Alero Door Locks

rough guess is that the battery is faulty
have a load test done on it
cold weather kills failing batteries quickly

Sounds like the body control module is going bad. Need to be sure, not cheap.

Hi, try unhooking your Negative battery terminal and leaving it unhooked for about 5 minutes, then reconnect it. This should clear any fault codes that are stored in the computer. It's very possible that your BCM, ( Body Control Module) is failing. Take your car to a Mechanic that you trust... Hope this helps.

it could problem with wiring with fr rh door check connector is lose or it moved out, that can only be the cause.

Pls Check your Car Loose Connections Of your Electrical System

i had that same problem with my 99 alero i ended up having to change out my entire egnition switch and tumbler

The car beebs to be a reminder for you to get your keys before the car locks itself 7 seconds after all doors are shut.

You will need to replace the lock actuator. they are the most common problem.

On a service parts identification label on the spare tire cover, look for a 3 digit code that starts with M, I.E. MD9 or some such, that will narrow down which transmission you have.

Replace the driver side lock switch.