I have a 1999 Pontiac Grand Prix. The car alarm goes off intermittently even when it is not armed. Is there a way to reset the system, or what are the possible solutions to fix this.

Open the door panel and check the wiring.

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Pontiac Grand Prix 2005 Owners Manual Download

replace the arm it's self. take the streering wheel..

its a security feature from factory. Gotta take it to a pontiac dealer and get the reset code.

check your manual or go to your dealship

The alarm system is automatic and resets itself every time you open the door with the key or the remote.

I can't answer because I have other question open, sorry, but here I send any comments and clues to solve (I hope).

For the FUSE PANEL, location and description, I suggest check the 2000-Pontiac-Grand-Prix-Owners-Manual (page 330 and next). A/C have one "diode". Check it.

About your radio display, sound like a internal problem, keep in mind that the CD is working.

The Security Litgh, its possible that you have any problem with the THEFT system or any aftermark alarm (if you have).

Resetting Oil Service Indicator Lights - Pontiac Grand Prix, 1999-03
Driver Information Center If Equipped). Turn the ignition to ON without starting the engine. Fully press and release the accelerator pedal three times within five seconds. If the CHANGE OIL Soon indicator flashes two times, the system is resetting. Turn the ignition key to OFF, then start the vehicle.
If the CHANGE OIL SOON indicator comes on and stays on, repeat the procedure. To reset the OIL LIFE indictor if equipped with a Trip Computer: Press the trip MODE button until the light appears next to OIL LIFE. Press and hold the trip RESET button until the oil life percentage changes to be 99 percent.

Hope helps (remember rated this).

look around engine for any breather pipes ,they could be split and make sure you have a look and dont think i have already done it

Rear trailing arm.

Hello! To reset the vehicle's PCM you simply need to disconnect the negative battery cable from the battery and leave it disconnected for 30 minutes.

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