2006 Buick Lacrosse Problems

What owners report

Owners of the 2006 Buick LaCrosse most often describe low-beam headlights that quit while driving at night, leaving only the high beams working; many complaints reference the headlamp driver module and recall 15V519000. A smaller but consistent group describes dashboard gauges, warning lights and intermittent no-starts on the electrical side, plus passenger airbag warning lights tied to the seat occupant sensor. Most of these reports arrive between roughly 50,000 and 150,000 miles, often years after the car was new.

1. 1
   Exterior lighting

   Low-beam headlights quit while driving

   • 152 complaints (51%)
   • median 89,800 mi at 10.0 yrs old (117 state mileage)
   • 8 mention a crash, fire or injury
   • owner-quoted repair $400 (median of 5 quotes)
   • filed 2008–2023

   Complaints describe the low beams going dark without warning, day or night, and often coming back on after the car is shut off and restarted, or only working again later. High beams and marker lights typically still work, so owners drive home on high beams. Several independent mechanics diagnosed the headlamp driver module (HDM), and some owners had the module or the relay replaced, sometimes more than once with the problem returning. Owners frequently note that their VIN was not covered by the headlamp recall. Reported from roughly 20,000 to 200,000 miles, with many complaints between about 50,000 and 150,000 miles; often described as intermittent, at night, at various speeds.

   Recall 15V5190003 related service bulletins

   What to check: Test the low beams at night and check whether the headlamp driver module has already been replaced under the recall for this VIN; ask for service records showing module or relay replacement.

   2 excerpts from owner complaints in NHTSA records

   “Headlights have a mind of their own. Only high beams work. My grandson noticed a recall he called the local dealership. Was told that our VIN number was not listed. Same model as thousands of others.. He replaced headlight module and both bulbs about 70 dollars lost. This happened at night while going down road in heavy rain on 2 lane”

   NHTSA complaint #11005170, filed 2017-07, 156,000 miles

   “Intermittent problem with headlamps going dark while driving at night forcing me to use my high beams. Daytime running lights appear to work although I wouldn't necessarily notice if they go dark during the day. I understand GM has a recall for this problem and want to know if my vehicle qualifies. I have not received any recall notice from GM although I read they have started to send notices out in may 2016.”

   NHTSA complaint #10903586, filed 2016-09, 104,000 miles
2. 2
   Electrical system

   Instrument panel lights and gauges drop out

   • 35 complaints (12%)
   • median 86,500 mi at 8.9 yrs old (28 state mileage)
   • 3 mention a crash, fire or injury
   • filed 2008–2020

   Owners describe dash lights, the instrument cluster and the speedometer going dark or stopping intermittently, sometimes when the car is first started and sometimes while driving. Some complaints also describe the car stalling or failing to restart, with a security warning light, and a diagnosis of a computer needing reprogramming or a loose connection. Several mention the ignition switch recall applying to their vehicle. Spread from about 25,000 to 210,000 miles, appearing at random and difficult to reproduce for a mechanic.

   Recall 14V3550003 related service bulletins

   What to check: Ask whether the ignition switch recall (14V355000) has been completed, and watch the cluster and warning lights through a test drive, including a cold start.

   2 excerpts from owner complaints in NHTSA records

   “While driving on a three lane highway, the 2006 Lacrosse engine stopped. I was able to cross two lanes and park on the shoulder. Towed to a mechanic and he spent 1/2 hour looking for problem. Tested and no codes. Moved the connection at the distributor module and the problem was solved. Tried to make it fail again by moving, unplug and plugging the connection. I drove home and it has not happened again.”

   NHTSA complaint #10482467, filed 2012-10, 33,022 miles

   “Dash lights will not come on when starting the car. This happens on occasion (about 2 times per month). It is impossible to determine when this happens. The dash lights may come on from five minutes to an hour after the car is started. This mostly happens when the car is first started. On several occasions it has done out while driving. Gm has offered a diagnoses of the problem but this would only be beneficial if they were off and stayed off when I would go to a dealer. I have tried this any the lights always come back on before I arrive. …”

   NHTSA complaint #10434072, filed 2011-11, 24,920 miles
3. 3
   Steering

   Whine or tightness when turning the wheel

   • 16 complaints (5%)
   • median 67,500 mi at 7.6 yrs old (12 state mileage)
   • filed 2007–2021

   Owners describe a whining or grinding noise from the steering column when turning, sometimes with steering that feels stiff or hard to turn at low speed. Complaints mention steering gear replacement, and one notes a cracked front sway bar found during brake service. In some cases several shops were unable to identify the cause. Mostly reported between about 28,000 and 130,000 miles, often noticed at low speed or during small steering inputs.

   2 related service bulletins

   What to check: Turn the wheel slowly while parked and listen for whine or grind; ask whether the steering gear or power steering components have been replaced.

   2 excerpts from owner complaints in NHTSA records

   “The steering is tight, hard to turn the front wheels. It makes a whining & grinding noise when turning. It sounds like it's rubbing against something in the steering column. I've had it to 3 mech's, plus I called Buick. They all said they didn't know what the problem was. It seems this is a problem with many 2006 lacross' . This happens from 0 to 60 MPH”

   NHTSA complaint #11015860, filed 2017-08, 61,000 miles

   “I have a 2006 Lacrosse with 28,000 miles - there was a recall for the ignition switch that was repaired a few months earlier; then there was a whining noise with the steering - had to have the steering gear replaced; at the same time, the module/coil went bad.”

   NHTSA complaint #10703455, filed 2015-04, 28,000 miles
4. 4
   Air bags

   Passenger airbag warning light stays on

   • 29 complaints (10%)
   • median 62,500 mi at 8.1 yrs old (22 state mileage)
   • 2 mention a crash, fire or injury
   • filed 2008–2022

   Complaints describe the passenger airbag or seat belt warning light coming on intermittently or staying lit, with the passenger airbag indicator sometimes not reading correctly with someone in the seat. Dealers identified the passenger presence sensing module or a seat connector, cleaned or reseated the connector, and told owners the airbag may not deploy while the light is on. Some complaints note the light returning after repair. Typically reported in the 30,000 to 65,000 mile range, sometimes recurring after a dealer visit.

   Recall 06V417000

   What to check: With the key on, have someone sit in the passenger seat and confirm the passenger airbag indicator reads correctly; ask about the passenger sensing module and seat connector service history.

   2 excerpts from owner complaints in NHTSA records

   “My airbag light would not go off after I started the car, it would go off then it would come on randomly while I was driving the car. I had it checked at a Buick dealer. I was told that the intermittent module inside the passenger seat was what came up on the computer. Then I noticed that the on/off control on the passenger side quit reading on when I had a passenger. I was told that as long as light on the instrument cluster is off all my airbags are working. Sounds like a safety issue to me. …”

   NHTSA complaint #10282078, filed 2009-08, 59,000 miles

   “Passenger airbag light stays on. Took to dealership on 6/29/16 the following at the notes from the dealership to check this issue: checked for codes b00921. Checked bulletin. Lubed seat connector at passenger floor. Cleared DTC. Rechecked and light is off. May neeed pps module if light come back on. All ok at this time. Dealership informed my spouse that if the light is on, that the airbag may not deploy. Drove car on 7/7/16 light is back on.”

   NHTSA complaint #10883444, filed 2016-07, 103,451 miles

Buying note. Budget for a headlamp driver module or relay repair and confirm which recalls have actually been performed on the specific VIN, since several complaints come from cars not covered. A night test drive and a scan for stored airbag and ABS codes are the most useful checks on this generation.

Summary written with AI from a sample of 60 NHTSA complaints for this model year (picked at random, with complaints that state a mileage and recent ones taken first), then checked automatically against the source records. Where a problem shows a complaint count, every complaint for this model year was matched with fixed keyword rules (written with AI and tested against the sample), and the mileage, age and repair figures are calculated from those complaints; owners' figures are as stated, not verified. Other counts refer to the sample. The excerpts come from NHTSA's public complaint records and are unverified; capitalisation is normalised, NHTSA staff notes are removed, and shortened text ends with “…”. Something wrong? Request a correction.