2006 Chevrolet Trailblazer Electrical System Problems
Owners have filed 251 complaints with NHTSA about electrical system problems on the 2006 Chevrolet Trailblazer, 23% of all complaints for this model year. Half of the reports with a mileage happened before 89,000 miles. The words owners use most often: “side window” (10% of reports).
- 251electrical system complaints
- 89,000median miles at failure
- 2mention a crash
- 2mention an injury
- 2related recalls
- $630typical repair cost reported by owners
- 31%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Side window: mentioned in 24 of 251 complaints (10%)
- Fuel gauge: mentioned in 23 of 251 complaints (9%)
- Ignition switch: mentioned in 22 of 251 complaints (9%)
- Door panel: mentioned in 20 of 251 complaints (8%)
How much does it cost to fix?
Owners who wrote down what they paid or were quoted put the typical electrical system repair on the 2006 Chevrolet Trailblazer at $630, and half of them between $460 and $760.
Based on 7 NHTSA complaints about this problem alone that state a repair bill or quote (2012–2016), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.
At what mileage do electrical system problems happen?
Based on 205 complaints that reported the odometer reading.
How serious are the reports?
Of 251 complaints, 2 mention a crash, 38 a fire, 2 an injury.
Chevrolet Trailblazer electrical system complaints by model year
| Model year | Electrical System complaints | Share of that year | Median miles |
|---|---|---|---|
| 2026 Trailblazer | 4 | 36% | 20,000 |
| 2025 Trailblazer | 14 | 56% | 36,800 |
| 2024 Trailblazer | 11 | 33% | — |
| 2023 Trailblazer | 16 | 23% | 49,000 |
| 2022 Trailblazer | 31 | 28% | 44,000 |
| 2021 Trailblazer | 41 | 21% | 12,500 |
| 2009 Trailblazer | 9 | 33% | 80,000 |
| 2008 Trailblazer | 65 | 34% | 76,000 |
| 2007 Trailblazer | 200 | 27% | 77,000 |
| 2006 Trailblazer | 251 | 23% | 89,000 |
| 2005 Trailblazer | 617 | 42% | 70,000 |
| 2004 Trailblazer | 627 | 58% | 65,527 |
| 2003 Trailblazer | 285 | 32% | 80,000 |
| 2002 Trailblazer | 181 | 16% | 70,500 |
| 2001 Trailblazer | 2 | 10% | 148,937 |
| 2000 Trailblazer | 1 | 4% | 131,000 |
When owners reported it
Related recalls (2)
Visibility:power window devices and controls; electrical system
Problem: General Motors (GM) is recalling certain model year 2005-2007 SAAB 9-7x; 2006 Chevrolet Trailblazer EXT and GMC Envoy XL; and 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier and Isuzu Ascender vehicles. Fluid may enter the driver's door module, causing corrosion that could result in a short in the circuit board. A short may cause the power door lock and power window switches to function intermittently or become inoperative. The short may also cause overheating, which could melt components of the door module, producing odor, smoke, or a fire.
Risk: A short in the circuit board could lead to a fire, increasing the risk of personal injury. A fire could occur even while the vehicle is not in use. As a precaution, owners are advised to park outside until the remedy has been made.
Fix: Owners will be contacted and dealers will test the driver's door module. If the module is functioning properly, a protective coating will be applied. If the module is not functioning properly, it will be replaced. These repairs will be done free of charge. GM will notify Buick, Chevrolet, and GMC owners, Isuzu and Saab will contact their respective owners. The recall began on August 2, 2013. Buick owners may contact the owner center at 1-800-521-7300, Chevrolet owners at 1-866-694-6546, GMC owners at 1-866-996-9463, Isuzu owners at 1-800-255-6727, and Saab owners at 1-800-955-9007. GM's campaign number is 12180. This recall is an expansion of recall 12V-406.
Visibility:power window devices and controls; electrical system
Problem: General Motors (GM) is recalling certain model year 2006 Chevrolet Trailblazer EXT and GMC Envoy XL and 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, SAAB 9-7x, and Isuzu Ascender vehicles, originally sold or currently registered in Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin, and the District of Columbia. Fluid may enter the driver's door module, causing corrosion that could result in a short in the circuit board. A short may cause the power door lock and power window switches to function intermittently or become inoperative. The short may also cause overheating, which could melt components of the door module, producing odor, smoke, or a fire.
Risk: A short in the circuit board could lead to a fire, increasing the risk of personal injury. A fire could occur even while the vehicle is not in use. As a precaution, owners are advised to park outside until the remedy has been made.
Fix: Parts for this recall are expected to available in March 2013. GM will notify Buick, Chevrolet, and GMC owners when parts are available. Buick owners may contact the owner center at 1-800-521-7300, Chevrolet owners at 1-866-694-6546, and GMC owners at 1-866-996-9463. Isuzu owners will be notified by Isuzu Motors when parts are available. Owners may contact Isuzu customer service at 1-800-255-6727. SAAB owners will be notified by SAAB Cars North America when parts are available and for inquiries, owners may call SAAB customer service at 1-800-955-9007.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
The contact owns a 2006 Chevrolet Trailblazer. The contact received notification of NHTSA Campaign Number: 13V248000 (Electrical System, Visibility). The contact stated that on several occasions while the vehicle was running or while driving at various speeds, the passenger's window switch was…
Car randomly locks automatically by itself while car is parked and running. I have been locked out on several occasions. Locks while keys are in the ignition or if there just sitting in cup holder or wherever.
Driving vehicle turn it off turn back on drive somewhere and turn it off and go swimming for an hour came back go to go start it and would not start I believe it's the anti-theft system as we replaced the ignition switch and the ignition cylinder but my illumination selector for my gear selector…
Frequently asked questions
Do all 2006 Chevrolet Trailblazers have electrical system problems?
No. NHTSA has 251 owner complaints about electrical system for the 2006 Chevrolet Trailblazer (23% of the 1,108 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the 2006 Chevrolet Trailblazer electrical system?
Yes: 2 safety recalls list electrical system. Check your VIN on NHTSA.gov to see whether the fix was done on your car.
At what mileage do electrical system problems start?
The median reported mileage is 89,000 miles: half of the reports with a mileage came before that.
How much does it cost to fix electrical system problems on the 2006 Chevrolet Trailblazer?
Owners report a typical cost of $630 (half paid between $460 and $760), from 7 complaints that state a repair bill or quote, in 2026 dollars.
What do owners say about electrical system problems on the 2006 Chevrolet Trailblazer?
The most frequent phrase is “side window”, in 24 of 251 complaints, followed by “fuel gauge” (23).
Other 2006 Chevrolet Trailblazer problems
See all 2006 Chevrolet Trailblazer problems or electrical system problems across all Trailblazer years.