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Crazy 06 Buick Lacrosse problem #4508966
09/06/17 10:31 AM
09/06/17 10:31 AM
Joined: Mar 2009
Posts: 453
northeast
lucerne06 Offline OP
lucerne06  Offline OP
Joined: Mar 2009
Posts: 453
northeast
Hopefully someone can help, my 2006 Buick Lacrosse CX with 63,000 well kept miles on it has suddenly started acting up. When you park and turn off the car and lock it up,within a few hours the doors unlock themselves and the front bumper lights as well as the rear running lights come on, and will not shut off. You can open the door and even manually turn the lights from AUTO setting to OFF, but they still will not turn off..The only way to shut them off is to start the car, put in drive move slightly forward then turn the car off again.Then within a few hours it happens all over again??? I discontented the battery for ten min to clear or reset but did not help. The headlamp relay switch was replaced last year under recall and I removed the relay but the lights stayed on.

Re: Crazy 06 Buick Lacrosse problem [Re: lucerne06] #4508969
09/06/17 10:35 AM
09/06/17 10:35 AM
Joined: Mar 2014
Posts: 686
Twin Cities MN USA
Inspecktor Online content
Inspecktor  Online Content
Joined: Mar 2014
Posts: 686
Twin Cities MN USA
CHRISTINE!!!!!


2001 Ranger 3.0 162,000 mi
2006 Dakota 4.7 156,000 mi
1986 GL1200A 73,500 mi
2001 Buick LeSabre Limited 292,000 mi
Re: Crazy 06 Buick Lacrosse problem [Re: lucerne06] #4508984
09/06/17 10:51 AM
09/06/17 10:51 AM
Joined: Mar 2016
Posts: 484
burlington ,ontario, canada
ndfergy Offline
ndfergy  Offline
Joined: Mar 2016
Posts: 484
burlington ,ontario, canada
Faulty door switch?


2015 Toyota Yaris 5spd Manual
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Re: Crazy 06 Buick Lacrosse problem [Re: ndfergy] #4508986
09/06/17 10:53 AM
09/06/17 10:53 AM
Joined: Oct 2005
Posts: 7,094
Colorado
Kuato Offline
Kuato  Offline
Joined: Oct 2005
Posts: 7,094
Colorado
Originally Posted By: ndfergy
Faulty door switch?


Yep either that or a short somewhere.


Thick vs Thin test: 15k / 43k miles complete
Re: Crazy 06 Buick Lacrosse problem [Re: lucerne06] #4509013
09/06/17 11:24 AM
09/06/17 11:24 AM
Joined: Jan 2008
Posts: 10,965
OH
SatinSilver Offline
SatinSilver  Offline
Joined: Jan 2008
Posts: 10,965
OH
A battery starting to poop out possibly.

Re: Crazy 06 Buick Lacrosse problem [Re: lucerne06] #4509042
09/06/17 11:47 AM
09/06/17 11:47 AM
Joined: Aug 2003
Posts: 2,551
DELAWARE
Hootbro Offline
Hootbro  Offline
Joined: Aug 2003
Posts: 2,551
DELAWARE
Body Control Module, wiring, headlamp switch, bad grounds, fuse block, corrosion in connector and myriad of other possibilities.

You need a schematic and someone with troubleshooting skills and a meter to start going over this. Anything else is just stabbing in the dark guesses.


2018 RAM 2500 Cummins 6.7L (Delvac 1300 15W-40)
2017 Jeep Renegade 2.4L (Idemitsu 0W-20)

Re: Crazy 06 Buick Lacrosse problem [Re: Hootbro] #4509051
09/06/17 11:56 AM
09/06/17 11:56 AM
Joined: Jan 2008
Posts: 10,965
OH
SatinSilver Offline
SatinSilver  Offline
Joined: Jan 2008
Posts: 10,965
OH
As mentioned check corrosion on battery terminals. If present, clean and grease. Walmart TLE has a good battery protection service for $3.50. Includes a good cleaning, lubing with grease and NOCO felt washers.

Re: Crazy 06 Buick Lacrosse problem [Re: SatinSilver] #4509083
09/06/17 12:27 PM
09/06/17 12:27 PM
Joined: May 2008
Posts: 6,298
Easton, PA
lexus114 Offline
lexus114  Offline
Joined: May 2008
Posts: 6,298
Easton, PA
Originally Posted By: SatinSilver
A battery starting to poop out possibly.



this ^^^^^^^^^^^ my fil`s 07 lincoln interior light would not shut off. and turns out the batt was the culprit.

Last edited by lexus114; 09/06/17 12:28 PM.

2017 Mercedes-Benz C300 4matic coupe 2.0 turbo
2016 Lexus RX 350 Autumn Shimmer AWD
Re: Crazy 06 Buick Lacrosse problem [Re: Hootbro] #4509167
09/06/17 02:21 PM
09/06/17 02:21 PM
Joined: Aug 2013
Posts: 2,657
Central Maryland
HangFire Offline
HangFire  Offline
Joined: Aug 2013
Posts: 2,657
Central Maryland
Originally Posted By: Hootbro
Body Control Module, wiring, headlamp switch, bad grounds, fuse block, corrosion in connector and myriad of other possibilities.

Yup, it's probably in the first 6. Hopefully not the last one.
Originally Posted By: Hootbro

You need a schematic and someone with troubleshooting skills and a meter to start going over this. Anything else is just stabbing in the dark guesses.

Maybe. Burnish all the grounds, terminals, and connections, check and maybe replace the battery, you've got a good chance of catching it.


Various musings: http://hangfire.net
Re: Crazy 06 Buick Lacrosse problem [Re: lucerne06] #4509220
09/06/17 03:21 PM
09/06/17 03:21 PM
Joined: Mar 2009
Posts: 453
northeast
lucerne06 Offline OP
lucerne06  Offline OP
Joined: Mar 2009
Posts: 453
northeast
crazy, also seems to do this mainly at night

Re: Crazy 06 Buick Lacrosse problem [Re: lucerne06] #4509512
09/06/17 08:16 PM
09/06/17 08:16 PM
Joined: Aug 2003
Posts: 2,551
DELAWARE
Hootbro Offline
Hootbro  Offline
Joined: Aug 2003
Posts: 2,551
DELAWARE
Originally Posted By: lucerne06
crazy, also seems to do this mainly at night


You having a high dew point at night? If so, I would lean towards moisture in electronics.


2018 RAM 2500 Cummins 6.7L (Delvac 1300 15W-40)
2017 Jeep Renegade 2.4L (Idemitsu 0W-20)

Re: Crazy 06 Buick Lacrosse problem [Re: lucerne06] #4509574
09/06/17 09:26 PM
09/06/17 09:26 PM
Joined: Mar 2009
Posts: 453
northeast
lucerne06 Offline OP
lucerne06  Offline OP
Joined: Mar 2009
Posts: 453
northeast
not so sure, it poured here all day long, it did not happen at all during th day...just happened again 4 hours after it was parked at 22A;00 tonihht...this time I used the remte to lock the doors again and the lihts went out..we shall se for how long..also had the battery tesetd it had a full charge.

Re: Crazy 06 Buick Lacrosse problem [Re: lucerne06] #4509609
09/06/17 10:34 PM
09/06/17 10:34 PM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline
Joined: Jan 2007
Posts: 17,501
Clovis, CA
This case would make an excellent YouTube video for sharp dudes like flmmaz the Ford mechanic.

lucerne06, how far are you from North Carolina ?

Re: Crazy 06 Buick Lacrosse problem [Re: Hootbro] #4510635
09/08/17 07:00 AM
09/08/17 07:00 AM
Joined: Aug 2013
Posts: 2,657
Central Maryland
HangFire Offline
HangFire  Offline
Joined: Aug 2013
Posts: 2,657
Central Maryland
Originally Posted By: Hootbro
Originally Posted By: lucerne06
crazy, also seems to do this mainly at night

You having a high dew point at night? If so, I would lean towards moisture in electronics.

Or something related to the headlight switch/circuit.


Various musings: http://hangfire.net

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