Poor Terminal Contact at BCM Connectors May Cause Electrical Issues on Pontiac G6

Various electrical issues may be caused by poor terminal contact at the body control module (BCM) electrical connectors. Proper diagnoses will be required to confirm faults are related to poor BCM connections.

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Average mileage: 89,076 (20,000–200,000)
6 model years affected: 2005, 2006, 2007, 2008, more2009, 2010
67 people reported this problem
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Viewing 1 - 20 of 46 problem details
2008 Pontiac G6 90,000 mi,
Brake lights stay on while driving and won't go off till I press or tap the brakes. When I release the brake lights come back on with in 3 to 5 secs later. I have replace the brake switch twice and it fixed it for 2 or 3 days but the problem returns
The ABS light, battery light, ESC warning on radio all came on, then lights when out. I thought this was an alternator issue. Changed the alternator and still same thing is happening. Took the alternator and had it tested and it tested good. What else could it be?
2009 Pontiac G6 82,000 mi,
door ajar light constantly on horn will go off, in the middle of the night interior lights stay on while driving dash registers: key fob battery low waiting to install a new BCM
2007 Pontiac G6 66,000 mi,
brake lights don't work right,cruise control doesen't work right,radio doesn't work right, door locks don't work correctly
While driving, pressing the gas to the floor, barley goes. Gradually gains speed. Once it's going, it cruises...without touching the gas pedal at all!! The engine light & Traction Control lights came on and the display states the engines power has been reduced. The lighter plugs/ports no longer work, either one. On my way for diagnosis/repair now.
2007 Pontiac G6 90,000 mi,
Car wont start, security light on. Told to replace BCM. 1 yr later same problem returns!
My car Service airbag comes on all the time and the clock keeps resetting itself And some times the indicators that says you have a flat tire or low tire keeps coming on . This is getting to be a problem .
2008 Pontiac G6 64,000 mi,
New battery and alternator, and still has battery light on dash. Loses power steering randomly and now it won't start and stay running for more than a minute. I think it's bcm
2008 Pontiac G6 128,000 mi,
Same problem with brake lights. They go on when driving and off when pedal applied. There is a recall for G6 up to 2007 for this due to fatal accidents. Still waiting on 2008 and up recall. Quick fix pull the BCM and lube the heck out of it with dielectrical grease. Wiggle it back into place and push it in hard. Try brakes again - if lights are still on put more grease on it. Issue being is the connectors on the BCM are corroding, you can also clean the connectors and grease it up too. Due to poor placement condensation from AC creates humidity and corrosion with the BCM. Been dealing with this issue for a few years now.
brake lights come on while driving and not pushing the brake...after pushin brakes they go off but come back on and stay on
2010 Pontiac G6 98,000 mi,
no cruise control, tc alarm comes on, esc alarm comes on, low beam light will work on one side for a while, then the other side and then both. Both sides does not go out at the same time
2005 Pontiac G6 155,000 mi,
My lights wouldnt go off, and now nothing in my car works,
2009 Pontiac G6 54,733 mi,
my lights do not work.. headlights one brake light
2006 Pontiac G6 60,000 mi,
Key fobs didn't work, clock on radio would constantly reset to midnight, airbag warning light comes on intermittently and various other electrical issues. Spent hundreds diagnosing and replaced BCM- didn't resolve problem. Then mechanic checked vehicle battery- it was low and needed to be replaced- all problems resolved.
2009 Pontiac G6 40,000 mi,
First noticed as cruise stopped working. Dealer applied diaelectric grease to BCM connectors, worked for about one day. Then I realized my brake lights were on all the time, dealer replaced Brake Pedal Position Sensor (BPPS). Worked great for 5 days. Now dealer thinks the BCM needs to be replaced because they cannot even calibrate the BPPS but htey may try another new BPPS first. Very frustrating, dangerous, and costly.
Rear middle brake light always on
2008 Pontiac G6 64,000 mi,
My cruise control stopped working:(
2007 Pontiac G6 74,000 mi,
Brake lights come on when shifting out of park and stay on until I put it back into park! can't drive it, BCM and recalibration/programming to expensive so I have a perfectly good car (except the fore mentioned) and haven't moved it out of my garage for a year!
2007 Pontiac G6 60,000 mi,
Brake lights work on and off - I was told by the GM dealership that I need to get a new BCM before more problems occur.
2006 Pontiac G6 145,000 mi,
Dashboard indicators all errored out, the car seemed to want to stall and had a hard time shifting. To fix, I bout a $2 pack of electrical light grease and greased the terminals on the module. This fixed it for awhile, but I recently had to do the same thing again.