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2012 Buick Regal lighting problems
moderate
Owners of the 2012 Buick Regal have filed 28 NHTSA complaints about the lighting, typically surfacing around 70,000 miles at roughly $250 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation.See lighting across all vehicles →
Failure mileage
Q1 53kmed 70kQ3 98kn=19
Complaints
28
Recalls
1
Avg fix
$250
lighting complaints on the Buick Regal, by model year
Of the 28 lighting complaints filed for the 2012 Buick Regal,
here's the actual mileage breakdown — failures cluster heaviest at 75,000-100,000 mi.
0-25k
2 (22.2%)
25-50k
0 (0%)
50-75k
1 (11.1%)
75-100k
4 (44.4%)
100-125k
1 (11.1%)
125-150k
0 (0%)
150k+
1 (11.1%)
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted.
Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits
and driving conditions shift the curve as much as mileage alone.
What stands out
Of the 6 model years of Buick Regal we track for lighting problems, this one carries the most owner complaints on file — 28.
Lighting accounts for 30% of every owner complaint on file for this vehicle — the dominant problem area across 8 categories tracked.
General motors (gm) is recalling certain model year 2012 Buick regal vehicles manufactured from february 22, 2011, through february 22, 2012 for failing to comply with the requirements of federal motor vehicle safety standard no
Inadequate lighting could reduce the visibility of the vehicle, increasing the potential for a crash.
Fix: General motors will notify owners, and dealers will reprogram the body control module free of charge. The safety recall began on march 29, 2012. Owners may contact gm at 1-800-521-7300.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering lighting on this vehicle — documented
repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall
(it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Service Bulletin02-08-42-001JJan 2024
This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage.
Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners consistently report water and condensation accumulating inside HID headlight assemblies on both driver and passenger sides. The problem begins as fogging or visible moisture, then progresses to premature bulb failure and eventual complete light loss. Water leaks down from the housing seal into the ballast, destroying it. Owners cite the faulty seal design as the culprit.
Replacing just the bulb or ballast is temporary; water returns and destroys the new component within weeks. The only permanent fix is complete assembly replacement, costing owners $700 to $1,800 per side plus labor. Multiple owners report failures starting at lower mileage (16,000–45,000 miles) with the problem recurring even after replacement.
Owners note this is widespread—GM discontinued replacement headlights, suggesting awareness of the defect. Dealers refuse warranty coverage, claiming water damage exclusions apply. One owner referenced NHTSA Campaign 12V093000 but received no manufacturer assistance.
One unrelated complaint mentions repeated rear turn signal bulb failures with melted sockets, and another describes a body control module electrical failure at 16,000 miles.
Same Buick Regal lighting reports on nearby years: 2011 · 2013
Failure modes owners describe
Headlight assembly water intrusion and HID ballast failure
Water and condensation accumulate inside the driver-side and passenger-side HID headlight assemblies due to a faulty seal or poor sealing design. Water then leaks down into the HID ballast, causing it to fail and the headlight to go out. Even replacing the ballast or bulb alone is temporary; the water returns and destroys the component again. Complete assembly replacement is the only lasting fix.
When: Occurs during normal driving, especially after rain. Failures reported between 16,000 and 82,000 miles.
Symptoms owners cite: Condensation or fogging visible inside headlight housing; Water pooling inside headlight assembly; HID bulb burns out prematurely; Complete headlight failure (no illumination); Dim headlight output; Both driver and passenger side headlights affected in some vehicles
Repairs/costs cited: Complete HID headlight assembly replacement required. Owner-reported costs range from $700 to $1,800 per assembly plus labor. Partial repairs (ballast or bulb replacement alone) are temporary and water recurs. GM discontinued production of replacement headlights for this model, limiting availability.
Recalls/TSBs owners mention: Most owners report manufacturer provided no assistance or warranty coverage. One owner referenced NHTSA Campaign 12V093000 (Exterior Lighting) but manufacturer offered no help. Dealers refused to cover water damage as a defect under warranty.
Rear turn signal bulb socket failure and overheating
Rear turn signal bulb sockets show signs of melting or thermal damage. Bulbs fail repeatedly despite replacement, suggesting a wiring or socket electrical issue causing excessive heat.
When: 2-year ownership period; repeated failures
Symptoms owners cite: Rear turn signal bulbs burn out repeatedly; Melted or damaged socket appearance
Repairs/costs cited: One owner replaced both rear turn signal bulbs 4 times in 2 years. Socket condition suggests thermal overload.
Body control module electrical failure
Electrical system malfunction with no warning lights initially illuminated. Dealership diagnosed a body control module failure. Problem recurred after repair.
When: 16,000 miles
Symptoms owners cite: Electrical system not functioning properly; No warning lights initially
Recalls/TSBs owners mention: Manufacturer notified but provided no assistance.
Synthesized from 28 NHTSA owner complaints — unverified consumer
allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting
9 most recent
lighting · 66,000 mi
· filed 12/20/2018
Tamara recall I noticed that there was water in the front left headlight and as I was driving down the road the bulb burnt out. When I took the light out the water ran down into the ballast this the second headlight that I have brought and the same problems exist. This is very dangerous especially driving on a back dark road I did research on this problem and I noticed everybody was having the…
lighting · 98,000 mi
· filed 12/17/2019
Right HID headlamp assembly contains moisture and prematurely wears out ballast. Even after replacing ballast and removing moisture it has slowly started to reappear on the inside of the headlamp assembly.
lighting · 78,000 mi
· filed 12/09/2021
The contact owns a 2012 Buick Regal. The contact stated that the driver’s side headlight assembly developed condensation inside causing the light bulb to blow out. The contact indicated that the entire headlight assembly needed to be replaced to fix the failure. The vehicle was not yet repaired. The manufacturer and the local dealer were notified of the failure, but no assistance was offered. The…
lighting · 10,128 mi
· filed 11/01/2020
Both headlights went out while driving at night. Mechanic told me I needed new ballast.
lighting · 16,000 mi
· filed 10/26/2023
The contact owns a 2012 Buick Regal. The contact stated that after starting the vehicle, he became aware that the electrical system was not functioning properly. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the body control module. The vehicle was repaired, but the failure reoccurred. After investigating the failure, the contact related it…
Condensation in headlight causing the bulb to quit. Get new bulb for $150, change bulb, it rains, it happens again. Am told a new assembly is $1500. This is a common issue with this vehicle. Seems like it should be fixed by Buick.
lighting · 82,000 mi
· filed 10/07/2021
The contact owns a 2012 Buick Regal. The contact stated that while driving at night, the illumination from the headlights was very dim. The contact had taken the vehicle to an independent mechanic and was informed that condensation had accumulated in both headlight modules causing the failure. The dealer was notified of the issue and informed her that they would call her back. The manufacturer…
lighting · 88,450 mi
· filed 10/05/2020
In the 2 years I've owned this vehicle, I have had to replace both rear turn signal bulbs 4 times. The socket looks melted. On october 3, 2020...the front passenger seat adjustment stopped working. It can recline back, but not return to the upright position
Had lighting trouble with your 2012 Buick Regal?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the lighting problem on the 2012 Buick Regal?
It's a documented issue but not catastrophic. 28 complaints have been filed. Repairs average $250 and most owners catch it before it causes a breakdown.
At what mileage does the lighting typically fail?
Across the 19 complaints that reported odometer mileage, most lighting failures cluster between 53,000 and 98,000 miles, with the median around 70,000. A quarter of owners report trouble before 53,000; a quarter make it past 98,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $250 for lighting repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to lighting?
Yes — 1 active recall(s) cover lighting issues on this vehicle. Recall fixes are always free regardless of mileage or warranty status. Use the VIN decoder at the top of the page to check if your specific vehicle is affected.
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2012/Buick/Regal.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.