2006 buick lacrosse electrical system haywire

40

Asked by Guru9C45ZP Jul 09, 2021 at 06:58 PM about the 2006 Buick LaCrosse

Question type: Maintenance & Repair

Out of seemingly nowhere my electrical systems are all fucked up, the only
way i can start the car is by turning the key forward all the way and quickly
moving back to the first key position then going to second position and then
sometimes it will start.

When started everything that works is as follows: Windows, side mirrors,
cabin light, locks, trunk opener, pull down mirror lights, sunroof, fans and
direction of fan changer, cruise control (?), Headlights/brights, garage door
opener (?), Passenger air bag off/on indicator, brake lights, odometer, both
lighter ports, rear view mirror controls.

Everything that doesn't work is as follows: Rpm, speedometer, gas meter,
temp meter, (all go to 0 when it starts but doesn't go higher) radio, seat
warmers, hazards, ac compressor, cd player ejector, steering wheel temp
controller.

None of the Fuses are blown and it has basically a brand new battery
(refurbished from ACME)

6 Answers

40

Not sure if the ignition switch would cause all of these problems, and to give more information, the radio works after i turn off the engine but keep the key in the first position

1 people found this helpful.
40

And to clarify by first position and second position i mean ACC and ON

1 people found this helpful.
157,505

My first suspect would be the BCM (body control module). You'll need a scan tool that can communicate with the BCM to get any stored trouble codes. My second suspect would be a bad instrument cluster ground. If you recently installed an aftermarket stereo, look there first. On a side note, please don't use profanity. It's not necessary to get your point across. Thanks and I hope that helps! Jim

40

We replaced the Ignition switch and it worked for a good 2 minutes, then stalled on me and it went right back to having the same issues. Gonna take it up to the dealership and have them test the BCM to see if that is the issue

1 people found this helpful.
40

Replaced the Fuse box in the passenger side because it was corroded and that made it mess up.

1 people found this helpful.

Your Answer:

LaCrosse

Looking for a Used LaCrosse in your area?

CarGurus has 34 nationwide LaCrosse listings starting at $4,620.

Postal Code:

CarGurus Experts

  • #1
    Beinghelpful46
    Reputation
    3,150
  • #2
    Bogdan Butnaru
    Reputation
    1,240
  • #3
    Sweeneyt
    Reputation
    1,140
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Impala
12 Great Deals out of 113 listings starting at $5,595
Used Buick Lucerne
11 listings starting at $2,995
Used Chevrolet Malibu
38 Great Deals out of 1,147 listings starting at $1,495
Used Toyota Camry
51 Great Deals out of 944 listings starting at $2,212
Used Honda Accord
43 Great Deals out of 914 listings starting at $2,799
Used Chrysler 300
34 Great Deals out of 504 listings starting at $5,912
Used Chevrolet Tahoe
18 Great Deals out of 717 listings starting at $5,995
Used Dodge Charger
41 Great Deals out of 602 listings starting at $4,888
Used Jeep Grand Cherokee
109 Great Deals out of 3,274 listings starting at $4,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.