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severe 51 complaints filed with NHTSA · avg repair $250 · see lighting across all vehicles →
Of the 51 lighting complaints filed for the 2006 GMC Envoy, here's the actual mileage breakdown — failures cluster heaviest at 125,000-150,000 mi.
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.
Among the 5 model years of GMC Envoy in our records for lighting problems, this one ranks #2 by owner-complaint volume.
No new NHTSA lighting complaint has been filed on this vehicle in over 7 years — the issue may be aging out of the active population.
Decreased lighting visibility may result in a vehicle crash.
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.
This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage.
View on NHTSA →This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and Replacement Guidelines.
View on NHTSA →This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and Replacement Guidelines.
View on NHTSA →This informational bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Replacement Guidelines.
View on NHTSA →This informational bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Replacement Guidelines.
View on NHTSA →Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
Owners of 2006 Envoys describe intermittent low-beam headlight failures that occur randomly while driving at any speed or even when parked. Lights cut out without warning, then self-correct after the engine is restarted or a cool-down period passes. Owners report the switch registers the lights as on even when they're off, forcing them to use high beams as a workaround. Multiple complaints reference NHTSA campaigns 14V755000 and 15V519000, which address exterior lighting defects; however, parts for campaign 14V755000 remained unavailable for extended periods, leaving owners with vehicles ineligible for repair or stuck waiting. At least one owner reports the problem recurred after the recall repair was performed.
Separate reports describe headlight beams projecting upward instead of down the road—visible as harsh reflections off the windshield in wet or foggy weather and lighting up garage ceilings when parked. The manufacturer dismissed this as normal, though the owner had never experienced it in previous GMCs.
A few complaints cite electrical issues: dimming and flickering lights, turn-signal and tail-light failures, reverse-light socket corrosion, and in two cases, melted fuse panels or wiring harnesses. One owner's bracket holding the rear third brake light broke, creating a detachment hazard. Repair attempts by dealers and independent mechanics often fail to resolve the core problem permanently.
Same GMC Envoy lighting reports on nearby years: 2005 · 2007 · 2008
Low-beam headlights fail to illuminate or cut off while driving at various speeds, then self-correct after restart or sitting idle. Owners report this occurs randomly and repeatedly, sometimes multiple times per drive. High beams typically continue to work, forcing owners to use high beams as a workaround.
When: Typically 40,000–170,000 miles; failures can occur early (36k) or late (185k) in vehicle service life.
Symptoms owners cite: Low-beam headlights cut out without warning while driving; Lights fail to illuminate when switch is activated; Intermittent failures that self-correct after restart or waiting; Owner reports switch registers lights as on when they are actually off; Failure occurs at all speeds, day or night; High beams function normally as workaround
Codes mentioned: Headlamp Driver Module (HDM) failure, Light relay fault
Repairs/costs cited: Replacement of headlamp driver module is the diagnosed remedy. Some owners report a $27 module available aftermarket; dealers charge diagnostic fees ($90+ reported). Fuse panel melting and wiring harness melting documented in at least two cases. Dimmer switch replacement attempted but did not resolve issue in one case.
Recalls/TSBs owners mention: NHTSA Campaign 14V755000 (Exterior Lighting) and Campaign 15V519000 (Exterior Lighting) issued. Campaign 14V755000 involved long delays in parts availability; dealers indicated parts unavailable for extended periods. Campaign 15V519000 offered free repair under recall. GMC declined further assistance on out-of-warranty vehicles; one service rep refused to help on a 12-year-old vehicle with 71,807 miles. At least one post-recall failure reported after HDM module replacement under campaign 15V519000, with manufacturer refusing to acknowledge the recurring problem.
High-beam and fog-light beams project upward into the driver's and passenger's field of view rather than horizontally down the road. Problem is most visible in wet, foggy, or snowy conditions or when parked near a wall/garage. Owner reports this lights up the garage ceiling and reflects off the windshield, blinding the driver.
When: Apparent early in vehicle service life, reported at 15,700–15,800 miles.
Symptoms owners cite: Headlight beams reflect off windshield; High-beam and fog-light beams project upward instead of forward; Bright reflection visible on garage ceiling when vehicle is parked inside; Blinding effect in mist, snow, or fog; less noticeable in dry conditions; Distraction and hindered driving ability in wet weather
Repairs/costs cited: Dealership supplied brighter bulbs as a remedy, which did not resolve the beam-angle problem. Owner believes the exterior lights are defective, not the windshield.
Recalls/TSBs owners mention: Manufacturer stated the beam reflection was normal vehicle function. Dealer checked another truck of same model and confirmed it exhibited the same behavior, after which GM said there was no problem.
Headlights and instrument panel lights dim, brighten, or flicker intermittently. In one case, lights progressed to complete failure before recall repair became available.
When: Reported across service life; one owner experienced flickering prior to a 2016 recall notice.
Symptoms owners cite: Headlights and dash lights dim and brighten at random; Lights flicker (low beams, high beams, daytime running lamps); Intermittent electrical short suspected; Headlight delay function fails during these events
Codes mentioned: Intermittent electrical short, Dimmer switch fault
Repairs/costs cited: Dimmer switch replacement attempted but failure recurred. Campaign 14V755000 applies; permanent remedy was unavailable at time of complaint.
Recalls/TSBs owners mention: NHTSA Campaign 14V755000 (Exterior Lighting). Dealer unable to determine when part and permanent remedy would become available.
Turn signal indicator blinks abnormally fast; tail light fails when turn signal is engaged.
When: At approximately 140,000 miles.
Symptoms owners cite: Left turn signal on instrument panel blinks very fast; Tail light fails when left turn signal is engaged; Failure recurs each time turn signal is engaged
Repairs/costs cited: Vehicle not taken to dealer or repaired.
Recalls/TSBs owners mention: Manufacturer made aware of failure.
Bulb sockets for reverse lights corrode and become unusable due to placement and lack of weather protection, reducing visibility when operating vehicle in reverse.
When: Timing not specified; affects nighttime reverse operation.
Symptoms owners cite: Reverse light sockets corroded; Reverse lights inoperable; Reduced visibility at night while in reverse
Repairs/costs cited: Socket corrosion caused by road grime exposure due to poor placement and lack of protective covering.
Brackets holding rear door third brake light spoiler break, creating a safety risk of the light assembly detaching and striking another vehicle.
When: Timing not specified.
Symptoms owners cite: Brackets holding rear door brake light spoiler break
Repairs/costs cited: Owner believes this is a design fault based on conversations with junkyards and dealers. Part is dealer-supplied only; commonly requested at junkyards.
Headlights do not activate or remain illuminated unexpectedly. In one case, auto light function activates but lights take approximately 5 minutes to come on. Another case reports headlights remained on while parked with engine shut off.
When: Reported at 85,000 miles and other mileages unspecified.
Symptoms owners cite: Headlights fail to come on when activated; Delayed headlight activation (approx. 5 minutes); Headlights remain on while parked with engine off
Repairs/costs cited: One complaint resulted in dealer repair at 85,000 miles.
Recalls/TSBs owners mention: Manufacturer notified in at least one case.
Synthesized from 51 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
I was driving to church on a major highway, it was raining and dark suddenly, my low beam lights went out. I stopped and turn the high beam on and when I turn the high beam off after 2 or 3 minutes the low beam came back on. The next day the same thing happened again on my way from work, driving down a city street and they just went off. I pull over and turn the high beam on and off for several…
Tl* the contact owns a 2006 GMC envoy. While driving at night, the headlamps failed to illuminate. The contact also noticed smoke under the hood of the vehicle. It was observed that the fuse panel under the hood was melted. The dealer diagnosed that the headlamp driver module needed to be replaced. The vehicle was repaired; however, the failure recurred. The vehicle was included in NHTSA campaign…
It's a meaningful issue. 51 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $250.
Across the 40 complaints that reported odometer mileage, most lighting failures cluster between 88,000 and 143,654 miles, with the median around 113,000. A quarter of owners report trouble before 88,000; a quarter make it past 143,654. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
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.
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.