Question about 2004 GMC Envoy

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Security light came on, then gages radio, power windows, and all warning lights came on--2004 envoy

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Several GM products, including the Chevrolet Impala and Malibu, the Oldsmobile Alero, the Pontiac Grand Prix, and Saturn Ion, have issues with the Security light coming on. This is many times an indication of a failing Body Control Module (BCM). Initially, the Security light will come on then go off, progressing to a constant on light, before the car will refuse to start. Other symptoms may include erratic action of electronics, a clicking sound coming from the glove box, and the air conditioning failing to blow cold air. I recommend a shop that specializes in the electronic systems of vehicles to diagnosis and make the necessary repairs. They should keep the car until they replicate the symptoms described. A new BCM from GM should cost about $230; plan on another $200 for them to diagnose the problem, replace the unit, and program the new unit. The dealers quote between $700 and $1,100 for the same repair. My experience and the experiences I have read on the internet, indicate the new BCM should last only about a year.

Posted on Aug 14, 2009

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My 2004 Pontiac grand am se1 acts like door is open and interior light stays on also does t lock on its own when in gear and lights don't blink and horn not honk when locking with key bob


Door ajar switch problem more then likely or wiring issue . The BCM - body control module won't turn off interior light , let door lock because it think's the door is open . The door ajar switch is a input to the BCM .

The first thing would be to have it checked for DTC'S - diagnostic trouble codes . Also check with an enhanced scan tool to see if the BCM shows ajar switch data (open or closed ? Do you know about body electronics ?
Body Control Module
The various BCM input and output circuits are described in the corresponding functional areas indicated on the BCM electrical schematics. The Body Control Module functions include the following:
?€¢
A/C compressor request. Refer to Air Temperature Description and Operation


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Remote Function Control. Refer to Keyless Entry System Description and Operation


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A/C cooling Fan. Refer to Air Delivery Description and Operation


?€¢
Audio Delay Power. Refer to Radio/Audio System Description and Operation


?€¢
Exterior and interior lighting control. Refer to Exterior Lighting Systems Description and Operation


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Daytime running lights (DRL)


-
Automatic lighting control


-
Fog lamps


?€¢
Interior lighting. Refer to Interior Lighting Systems Description and Operation


?€¢
Battery rundown protection (Inadvertent Power). Refer to Interior Lighting Systems Description and Operation


?€¢
Chimes. Refer to Audible Warnings Description and Operation


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Key-In-Ignition


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Head Lamps On


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Seat Belt Not Fastened


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Turn Signal On


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Park Brake Warning


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Door Ajar Warning


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Check gages


?€¢
Gage control. Refer to Instrument Cluster Description and Operation in Instrument Panel, Gages, and Console.


?€¢
Instrument cluster indicator control. Refer to Instrument Cluster Description and Operation in Instrument Panel, Gages, and Console.


?€¢
Theft deterrent. Refer to Theft Systems Description and Operation .


?€¢
Engine coolant level sensing. Refer to Cooling System Description and Operation .


?€¢
Washer solvent level sensing. Refer to Wiper/Washer System Description and Operation in Wipers/Washer Systems.


?€¢
Key-in-ignition sensing. Refer to Audible Warnings Description and Operation in Instrument Panel, Gages, and Console.


?€¢
Seat belt use sensing. Refer to Seat Belt System Description and Operation .


?€¢
Brake fluid level sensing.


?€¢
Parking brake state sensing.


?€¢
Rear compartment interface. Refer to Power Door Locks Description and Operation


?€¢
Horn interface.


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Door lock interface. Refer to Power Door Locks Description and Operation


?€¢
Bulb Check. Refer to Instrument Cluster Description and Operation in Instrument Panel, Gages, and Console.

Oct 24, 2016 | 2004 Pontiac Grand Am

1 Answer

I have a 2004 gmc envoy and the security light came on what does this mean?


  1. 2004 GMC Envoy Security light car not start - Questions - Fixya

    www.fixya.com > ... > GMC > Envoy > 2004 GMC Envoy...will not start replaced ignition switch and car will not turn over. Is the security light on ?If your truck has a pass key system, the sensor in the lock may not be ...
    ON GOOGLE

Jul 15, 2015 | GMC Cars & Trucks

1 Answer

I just installed a radio on my 02 envoy slt and now the backlighting on my insturment cluster and a/c don't light. All other dimmable lights work ie window button lights information screen and a/c...


Might be using the current for the cluster lights to power the radio, or a problem with the ground connection.
Check the wires you connected the radio to.
Try unplugging the radio to see if the lights work again.

Jul 28, 2012 | 2002 GMC Envoy

1 Answer

I have a 2004 GMC Envoy and the lights for the radio power/volume and presets 1 and 2 and the window controls for the driver's and passenger's windows are out. I am assuming that this is a fuse...


The illumination of these lamps is controlled by the BCM (Body Control Module) and there are numerous other similar lamps throughout the vehicle. It seems almost impossible for these few lamps to be out even after changing out the radio (don't understand why the instrument panel was changed). These miniature bulbs do go bad eventually, so I have no real answer fir your proble.

Nov 07, 2011 | 2004 GMC Envoy

1 Answer

Check gages warning light comes on (yellow light stays on) coolant temperature gage does not move


Looks like 2 different problems. Have your truck scanned for free at Autozone and see what codes pull up. The guage is probably a bad stepper motor on the back of the cluster.

Jan 08, 2011 | 2005 GMC Envoy Xl

1 Answer

The radio shuts off and all the warning lights are on


Bad ignition switch or an adjustment. Your talking,electrical switch here, not the key cylinder.

Mar 11, 2010 | 2004 GMC Envoy

1 Answer

Security light comes on and radio shuts off.


It is probably either a short in the wiring. You would have to take it apart to make sure there is not. It could be part of your cars security, again you would have to take it apart to check the wiring, or it could be a faulty ecu. Something you would have to take out and get tested at a dealer. If you are worried about it and not a DIYer i would take it to the dealer.

Mar 11, 2010 | 2004 GMC Envoy

1 Answer

No power


bad ignition switch replace it to double ck ck fuses with test light if no power to fuses I"M wright

Aug 31, 2009 | 2004 GMC Envoy

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