Problems · by component

2006 Chevrolet Trailblazer electrical system problems

305 owner complaints to NHTSA about the 2006 Chevrolet Trailblazer cite electrical system, 23% of all 1,347 complaints for this model year. NHTSA also lists 2 recalls on this component.

Complaints
305
23% of all complaints
Crashes
2
Reported by owners
Fires
42
Reported by owners
Injuries
5
Reported by owners
01 —Owner reports

What owners say about the electrical system

Verbatim from NHTSA complaints, newest first
“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 depressed from the driver's side door panel, and there was a clicking sound coming from the front passenger’s side of the vehicle, and the window failed to roll up or roll down. Additionally, the contact stated that on several occasions, when the driver's side window switch was depressed, the window failed to roll up or roll down. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was unknown. Parts distribution disconnect.”
Owner complaint to NHTSAFiled Sep 10, 2024Electrical system, VisibilityODI 11613711
“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.”
Owner complaint to NHTSAFiled Feb 10, 2023Electrical systemODI 11506537
“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 nor my tachometer works nor do my front two windows or locks”
Owner complaint to NHTSAFiled May 19, 2022Electrical system, Engine, Fuel/propulsion systemODI 11465236
“Several months ago, I was at a fast food drive up window. I had my drivers side window down while paying for my food and receiving my food. It was down pouring and the inside of my door got pretty wet. I wiped off the rain as best as I could but everything was soaked. The very next day the drivers side door controls started to go haywire. The window button stopped working and my door locks only worked occasionally until they stopped working all together. My side mirrors can no longer be adjusted from the drivers seat. I have to get out of the vehicle and manually adjust both driver and passenger side mirrors. I'm not sure if there is a short in the wiring from the rain or just what is going on. I asked a parts dealer to see how much it would cost to replace the drivers side door controls module and he was of no help except to say its a recall part because of moisture. I've looked this up and I see there was a recall but my VIN isn't on the recall list. I don't understand why my vehicle is excluded considering this appears to be exactly what this incident generated the recall in the first place. I further looked into the investigation you had on the…”
Owner complaint to NHTSAFiled Oct 15, 2021Power train, Electrical system, Visibility/wiperODI 11436873
“.+Electrical system. Have read this speedometer issue can also cause other malfunctions on instrument panel such as cruise control issues. .+Driving a car with a broken or faulty speedometer is very dangerous. Not only can it put you in danger, but it can also jeopardize the safety of your passengers, and other drivers and pedestrians on the road. As for the law, you can also be ticketed for operating a vehicle with a broken speedometer, which can cost you fines and court fees, and even risk suspending your drivers’ license. .+My mechanic has not had the chance to look at it yet as he isn't open till Monday. .+No other warnings were given prior to failure.”
Owner complaint to NHTSAFiled Jun 11, 2021Electrical system, Vehicle speed controlODI 11420645
“STABILITRAK LIGHT COMES ON INTERMITTENTLY FOR NO APPARENT REASON. HAVE HAD BRAKE FLUID, BRAKE PADS, ROTORS, SENSORS AND TIRES REPLACED. TRACTION CONTROL AND ABS CHECKED; ALL IS GOOD. NO CEL CODE RELATING TO THIS ISSUE. TRACTION CONTROL OFF BUTTON DOESN?T WORK ONCE LIGHT APPEARS. THERE IS NO DIFFERENCE IN DRIVING WHEN LIGHT IS ON. STILL HAVEN?T FIGURED OUT WHAT CAUSES IT. BATTERY, POWER CORDS, AND ALTERNATOR HAVE BOTH HAD TO BE REPLACED DO TO ISSUES WITH THE VOLTAGE OUTPUTS. NOW TO REPLACE FUSE BOX AND ECM DUE TO MORE VOLTAGE OUTPUT ISSUES. CEL HAS HAD NO INDICATIONS OF AN ECM, FUSE BOX, ALTERNATOR, OR BATTERY PROBLEM UNTIL THEY WERE BEYOND REPAIR (THIS ALSO HAPPENED WITH OTHER TRANSFER CASE LEAK, LOSS OF REVERSE GEAR, AND FRONT DIFFERENTIAL LEAK) . CEL COMES AND GOES BY ITSELF AT ANYTIME WITH NO DIFFERENCE IN DRIVABILITY OR CONDITIONS. EACH TIME IT REAPPEARED IT?S THROWN DIFFERENT SENSORS AND/OR CIRCUITS FAILING OR HIGH/LOW VOLTAGES INCLUDING O2, MAF, TPS, EVAP SYSTEM, WHEEL SPEED, FUEL PRESSURE, OIL PRESSURE, STEERING WHEEL, GAS AND BRAKE PEDAL POSITION, AIR BAG IMPACT, JUST TO NAME A FEW. MY CAR HAS RECENTLY STARTED GOING INTO LIMP MODE AT RANDOM DUE TO THIS…”
Owner complaint to NHTSAFiled Jun 1, 2020Electrical system, Electronic stability control (esc), EngineODI 11326724

Showing 6 of 305 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026NHTSA vehicle page
02 —Related recalls

2 recalls on this component

Electrical system

Free remedy

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.

Electrical systemReported Jun 13, 2013NHTSA 13V248000

Electrical system

Free remedy

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.

Electrical systemReported Aug 16, 2012NHTSA 12V406000
Data from NHTSA Recalls API · synced Nov 10, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.