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Exterior lightingPart report

2005 Buick Century Exterior lighting Problems

Complaints
8about this part
Share
42%of 19 total for the year
Median mileage
74,488miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 8 complaints about the exterior lighting of the 2005 Buick Century, 42% of the 19 complaints for this model year. Where a mileage was given, the median is 74,488 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“A few times in the last 2 years the headlights have turned off while driving for no reason. Once while I was in the car with a friend who also owns a Buick the issue occurred and he told me his car had been recalled for the same issue. I contacted Buick, who denied any knowledge of the issue, they referred me to my local Buick dealer who was aware of the problem but indicated my model was not one that had been recalled. As GM said they had no liability, I paid my local Buick dealer to diagnose the issue, which they determined was a faulty headlight sensor. …”

NHTSA complaint #10787600, filed 2015-11, 80,000 miles

“We have had our 2005 Buick lacrosse for about six months now and want to report this lighting safety concern. This headlight incident with our Buick has actually happened to us, three times since mid april. The first time it happened, we were driving one evening, suddenly our low beam headlights went off. This was very frightening as it was a dark stretch of road, with traffic. I slowed and found a reasonable safe spot to pull over. I tried turning the headlight switch in several positions with no success. We normally keep the headlamp switch in the auto position. …”

NHTSA complaint #10717414, filed 2015-05, 82,500 miles

“While driving at night, the headlights turned off by themselves. This has happened 3 times. When high/low beam selector was used, lights returned on. Suspect faulty switch??”

NHTSA complaint #10555182, filed 2013-12, 48,740 miles

“2005 Buick Century headlights turn themselves off while driving.this has happened on three separate occasions . I believe a faulty high low beam switch is the problem.”

NHTSA complaint #10252794, filed 2008-12, 100,000 miles

“The contact owns a 2005 Buick Century. While driving approximately 60 MPH, the low beams stopped working and hindered the contact's visibility while the vehicle was in motion. The contact had to hold the switch to get the high beams to remain illuminated due to the failure. The vehicle was taken to a dealer where it was diagnosed that the multi-function switch on the column for the lights needed to be replaced, including prematurely deteriorated ground wires. …”

NHTSA complaint #10820455, filed 2016-01, 118,000 miles

Related service bulletins

Exterior lighting: other model years

YearComplaintsShare of year
2005842%
20041128%
20034838%
20022416%
200143%
2000147%
19992410%
19982110%
199798%
199623%
199533%
199433%
199224%
199013%

Other parts of the 2005 Buick Century

Electrical system
6 complaints
Brakes
3 complaints
Engine cooling
2 complaints
Equipment
2 complaints
Air bags
1 complaints
Engine
1 complaints
Forward collision avoidance
1 complaints
Fuel system
1 complaints
Interior lighting
1 complaints
Latches, locks and linkages
1 complaints
Other or unknown
1 complaints
Seat belts
1 complaints

← All problems reported for the 2005 Buick Century

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology