Recall 15V519 covers 429,170 2005-2009 Buick Lacrosse, 9-7X, Rainier, Grand Prix, Trailblazer, Ascender, Envoy vehicles for headlamp module overheating. Free repair once Buick opens it.
Buick is recalling 429,170 2005-2009 Lacrosse, 9-7X, Rainier, Grand Prix, Trailblazer Ext, Trailblazer, Ascender, Envoy, and Envoy Xl vehicles because the headlamp driver module can overheat and fail, leaving the headlamps and daytime running lights dark. That reduces road visibility and raises crash risk; the dealer repair will be free once Buick opens the final remedy.
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What's wrong?
The headlamp driver module, or HDM, is the electrical module that supplies power to the low-beam headlamps and daytime running lights on affected 2005-2009 Buick vehicles, including Lacrosse and the other listed models. When the lights are switched on, the module completes the circuit so the lamps illuminate and stay on while driving.
In this recall, the HDM sits in the underhood electrical center, where heat builds around electrical components. GM found that the module does not operate properly in that thermal environment. As it overheats, it can fail and stop sending power to the headlamps and daytime running lights. The lamps then go dark even though the switch and bulbs are still part of the lighting system.
There is no warning sign before failure. The first clear sign is that the low-beam headlamps or daytime running lights do not illuminate when expected, which leaves the vehicle harder to see and harder for the driver to see ahead at night.
Who's affected?
Spans 9 nameplates across the 2005-2009 model years, with each listed vehicle tied to headlights.
| 2009 Buick Lacrosse | Headlights |
|---|---|
| 2008 Buick Lacrosse | Headlights |
| 2008 Saab 9-7X | Headlights |
| 2007 Buick Lacrosse | Headlights |
| 2007 Buick Rainier | Headlights |
| 2007 Saab 9-7X | Headlights |
| 2006 Saab 9-7X | Headlights |
| 2006 Buick Rainier | Headlights |
| 2006 Buick Lacrosse | Headlights |
| 2007 Pontiac Grand Prix | Headlights |
| 2005 Buick Lacrosse | Headlights |
| 2006 Chevrolet Trailblazer Ext | Headlights |
| 2006 Chevrolet Trailblazer | Headlights |
| 2006 Isuzu Ascender | Headlights |
| 2007 GMC Envoy | Headlights |
| 2007 Isuzu Ascender | Headlights |
| 2007 Chevrolet Trailblazer | Headlights |
| 2008 Isuzu Ascender | Headlights |
| 2006 GMC Envoy Xl | Headlights |
| 2006 GMC Envoy | Headlights |
| Units affected | 429,170 |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether this recall applies to your specific vehicle.
What's the safety risk?
Headlamps that fail to illuminate leave the driver with less roadway visibility and make the vehicle harder for oncoming traffic to see, increasing crash risk. There is no listed warning sign before the headlamps fail, so schedule the recall repair soon and use another vehicle after dark if the headlamps are not working. Repair will be free at any franchised Buick dealer once Buick opens it.
What should I do?
- Check your VIN to confirm your 2005-2009 Lacrosse, 9-7X, Rainier, Grand Prix, Trailblazer Ext, Trailblazer, Ascender, Envoy, or Envoy Xl is included in this Buick recall.
- Wait for Buick's owner notice before scheduling if the dealer says the HDM replacement is not open for your VIN.
- Contact a franchised Buick dealer once the repair is open for your VIN, and ask for the free headlamp driver module replacement that fixes the headlamp and daytime running light failure.
- Reference recall number 15V519 when you call the dealer.
- Bring the recall notice to the appointment if you have it.
- Limit nighttime driving until the repair is complete because failed headlamps reduce your view of the road and your vehicle's visibility.
What happens at the repair
Until the final dealer repair is available, follow any interim instructions in your owner notice and ask a Buick dealer how the vehicle should be handled. Once the repair opens, a Buick technician will replace the headlamp driver module, the part that controls the headlamps and daytime running lights. Parts and labor are free under the recall. If you already paid for a related HDM or lighting repair before the recall notice, the manufacturer's standard reimbursement plan covers documented expenses. Bring the repair paperwork to the service desk or contact Buick customer service.
| Reimbursement | Reimbursement available |
|---|
Timeline
| August 13, 2015 | Dealer notification began |
|---|---|
| August 13, 2015 | Dealer notification ended |
| August 14, 2015 | NHTSA published the recall |
| May 17, 2016 | Owner notification mailed |
| May 25, 2016 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 15V519?
Recall 15V519 covers 429,170 2005-2009 Buick Lacrosse, 9-7X, Rainier, Grand Prix, Trailblazer Ext, Trailblazer, Ascender, Envoy, and Envoy Xl vehicles with a headlamp driver module that can overheat and fail. When it fails, the headlamps and daytime running lights do not illuminate.
What should I do if my 2005-2009 Buick Lacrosse, 9-7X, Rainier, Grand Prix, Trailblazer Ext, Trailblazer, Ascender, Envoy, or Envoy Xl is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 15V519. If it is, contact a franchised Buick dealer and ask for the headlamp driver module replacement under recall 14291. The recall began on May 17, 2016, and the repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to fix the defect at no cost, and Buick dealers will replace the headlamp driver module free of charge. Parts and labor are covered for included vehicles under recall 15V519.
What is the safety risk?
The safety risk is reduced visibility at night or in low light. If the headlamps do not illuminate, the driver has less view of the roadway, and oncoming drivers have less ability to see the vehicle. That increases crash risk under recall 15V519.
What if I bought this vehicle used?
The free recall repair still applies. Recall coverage follows the vehicle, not the first owner. Check your VIN to confirm whether your specific vehicle is included, then reference recall 15V519 and Buick recall number 14291 when you call the dealer.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/15V519000 |
|---|---|
| Buick customer service | 1-800-521-7300 |
| NHTSA recall # | 15V519 |
| NHTSA recall # (full) | 15V519000 |
Source documents
-
Download Misc. Document (PDF) - Download Recall Document (PDF) (PDF)
- Download Recall Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Quarterly Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 31, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →