| 1 | 0 | 3 | 4 | 3 | 4 |
Chevrolet TrailBlazer repairs by problem area
Engine (32%)
Transmission and Drivetrain (11%)
Brakes and Traction Control (5%)
Suspension and Steering (22%)
Electrical and Air Conditioning (25%)
Paint, Rust, Leaks, Rattles, and Trim (2%)
Other (4%)
Select a problem area
- Engine
- Transmission and Drivetrain
- Brakes and Traction Control
- Suspension and Steering
- Electrical and Air Conditioning
- Paint, Rust, Leaks, Rattles, and Trim
- Other
Chart based on 617 repairs.
Chevrolet TrailBlazer electrical repair cost distribution
$2500+ (1%)
$1000 - $2499 (2%)
$500 - $999 (10%)
$100 - $499 (43%)
< $100 (44%)
Chart based on 139 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2008 Chevrolet TrailBlazer 4dr SUV
390-horsepower 6.0L V8 4-speed automatic AWD
| 95900 mi US $3335 |
hvac control head, temp LH and door actuator all failed. Had to pull the complete dash apart to get to the pieces and fix. System had heat on one side and ac on the other. |
| 112711 mi US $274 |
When you replace the headlights on the Trailblazer SS, you need to also go ahead and replace the Headlight relay unit. They seem to go hand in hand with failing. |
2008 Chevrolet TrailBlazer 4dr SUV
300-horsepower 5.3L V8 4-speed automatic RWD
| 58000 mi | AC Delco battery wouldn't charge. |
| 65000 mi US $176 |
Alternator started "chirping". |
| 84000 mi US $120 |
Cabin fan wouldn't stop running. Electronic regulator was replaced. |
2008 Chevrolet TrailBlazer 4dr SUV
285-horsepower 4.2L I6 4-speed automatic RWD
| 45791 mi US $250 |
replaced steering position sensor bearings went bad on alternator. replaced alternator |
| 110000 mi US $186 |
Went through full diagnostics. No parts were replaced other than those for regular maintenance. It was determined that the sensors were bad and none of the tires had issues. Decided not to replace sensors due to age of car and the fact that it would still pass state inspection. This was a computer issue- communication with sensors |
| 254000 mi US $80 |
ac seemed warm, check revealed pressure was a little low, no leaks were found using pressure test and sniffer test |
2008 Chevrolet TrailBlazer 4dr SUV
285-horsepower 4.2L I6 4-speed automatic 4WD w/low range
| 34300 mi US $133 |
Battery died while parked overnight. Checked charging system and all was OK. Replaced battery. |
| 49600 mi | Horn was inop - replaced switch mechanism in steering wheel |
| 50 mi | On-Star did not work. Software was re-installed. |
| 55000 mi US $227 |
Right front passenger power window failed in the "window down" position |
| 63000 mi | fan rheostat was faulty---it was burning! |
| 72000 mi | Another no start. Techs back at the house. Now they recommend replacing the starter connector. Maybe the starter too, not sure. Manager does not call back |
| 72200 mi US $300 |
Starter was replaced. |
| 75240 mi | DRL and low beams did not work. Replaced headlight switch. Low beams on headlights did not work. Replaced headlight switch. First switch was faulty. |
| 82460 mi C $149 |
Lights wouldn't shut off. Changed low light relay. |
| 74340 mi | Car would not start in cold weather. Bad cell in battery. Changed battery. Problem fixed. |
| 84940 mi C $650 |
Front windshield wiper motor |
| 71000 mi US $225 |
Condenser was leaking. Replaced the condenser, orifice tube and evaporator |
| 140800 mi US $200 |
a.c. would just stop cooling. temp gauge would stop working. sometimes on restart, everything would work again. completely intermittent |
2007 Chevrolet TrailBlazer 4dr SUV
395-horsepower 6.0L V8 4-speed automatic AWD
| 51000 mi | Driver's power window stuck down, would not roll back up. |
| 106020 mi C $45 |
Bad positive cable and terminal on the battery. |
| 107880 mi C $600 |
Replace AC compressor and lines |
2007 Chevrolet TrailBlazer 4dr SUV
302-horsepower 5.3L V8 4-speed automatic 4WD w/low range
| 31000 mi | Control module for driver's door faulty. No power window, mirror or lock. Part on national back order. No estimate of when part will be available. |
| 31500 mi | Electrical control module arrived at dealer after being on nationwide backorder for several weeks. Part replaced and problem fixed. |
2007 Chevrolet TrailBlazer 4dr SUV
291-horsepower 4.2L I6 4-speed automatic RWD
| 25700 mi US $250 |
Replace the Alternator @ $250 deductable under Carmax warranty after noticing noise coming from it while driving. |
| 43000 mi US $250 |
Replaced left front tire pressure sensor. |
| 60000 mi US $275 |
Replaced leaking condensor and recharged AC. |
| 73000 mi US $250 |
Replaced faulty tire pressure sensor and reset warning light. |
| 101700 mi | Gas gauge went from 1/4 tank to empty with gas still in tank |
| 103000 mi US $90 |
Replaced drivers side window regulator. |
| 127000 mi US $200 |
Window regulator for drivers window |
| 55000 mi US $300 |
Fuel system problem - fuel gauge reading E at all times regardless of fuel level in tank & Check Engine Light Rear hatch glass will not lock. |
2007 Chevrolet TrailBlazer 4dr SUV
291-horsepower 4.2L I6 4-speed automatic 4WD w/low range
| 104000 mi US $130 |
Fuel level sensor causes gauge on cluster to read erratically -- known problem; have TSB from GM. Paid half of repair cost. |
| 71200 mi | airbag service required light came on |
| 77800 mi US $40 |
right front low beam headlamp replaced |
| 93000 mi US $62 |
2nd left headlight in 13 months |
| 106000 mi | passenger front window wont roll up |
| 97000 mi | Apparently these models have had issues with the main fuse block under the hood. Sometimes the car just would not start at all. It took a savvy mechanic to figure it out. All connections needed to be reset in the fuseblock. |
| 109000 mi US $100 |
Full evac and replacement of R134a |
| 97000 mi | tire pressure monitor needed to be replaced. dealer covered all costs |
| 73000 mi US $150 |
Rear washer motor turned on intermittently - drained washer tank then SCREAMED, even with engine off. Disconnected. Then everything dead. Had towed to dealer. Previously owner installed aftermarket remote starter - removed - car fine now |
2006 Chevrolet TrailBlazer
Engine not specified
| 51000 mi US $600 |
RESISTOR PACK FOR DASH AIR. |
2006 Chevrolet TrailBlazer 4dr SUV, ext.
300-horsepower 5.3L V8 4-speed automatic 4WD w/low range
| 23000 mi | I noticed florescent green fluid under front bumper. After further inspection found it was coming from lower passenger side of the A/C condenser. Took vehicle in to confirm and also for emission, safety inspec. and oil and filter change. |
| 23000 mi | Air conditioner condenser ordered and then installed. |
| 41000 mi | Fuel level sending unit was faulty. Replaced. |
| 51000 mi | Driver Door Module needed to be replaced. Windows quit working, 4WD quit, panic sound went off for no reason. Had to disconnect battery to get car to start to drive to dealership. Repaired next day and it needed new battery. |
| 73000 mi | Friday Sept. 13 Starter failed completely. Called AAA and had car towed to dealer. Technician tapper starter and got car to start. Ordered starter from Carquest (lifetime)installed monday Sept 16. |
| 82400 mi US $73 |
Went to pick up Travel Trailer. Car would not start or turn over. Kept blowing Ing A 40 amp fuze. Had it towed. Bare wire under fuze box. Repaired. I Had this happen summer 2013 but got it going. Had dealer check did not find why. |
2006 Chevrolet TrailBlazer 4dr SUV, ext.
291-horsepower 4.2L I6 4-speed automatic RWD
| 86800 mi | brake light switch replaced |
2006 Chevrolet TrailBlazer 4dr SUV, ext.
291-horsepower 4.2L I6 4-speed automatic 4WD w/low range
| 190200 mi US $15 |
Just thought this was note worthy. The Service Engine light came on. I first check fluids. Surprisingly, I found the oil was just over 2 qts down! I cannot understand why no oil or other light came on long before this. Very, very slow leak. |
| 193000 mi | Sensors seem to produce false display messages indicating repairs needed that are not. The secondary service engine icon comes on for unknown reasons and goes back off randomly. So there is no way to determine its origin. The last code check said the engine coolant was not hot enough... Makes no sense unless it would produce some signs that the sensor was bad, its not. |
2006 Chevrolet TrailBlazer 4dr SUV
395-horsepower 6.0L V8 4-speed automatic RWD
| 69000 mi US $650 |
Tailgate monitor |
| 61200 mi US $220 |
Alternator was only charging at 13.2 volts causing the battery to drain. |
| 66000 mi | There was a constant drain on the battery and the dealer could not find the source or fix. |
2006 Chevrolet TrailBlazer 4dr SUV
395-horsepower 6.0L V8 4-speed automatic AWD
| 76000 mi US $80 |
Replaced starter; bearings worn out. Purchased new replacement on eBay for 30% of retail. |
| 95800 mi US $20 |
Replaced belt tensioner for the A/C compressor. It appeared to be the factory part and bearing was worn. Squeak gone. |
| 70000 mi US $1212 |
Air bag light was on - Replaced Passenger presence module, passenger seat & sensor, passenger seat belt pretensioner. Problem solved. |
| 71000 mi US $482 |
Airbag light came on after owner had removed and reinstalled steering wheel during ignition switch replacement. Dealer troubleshooted and replaced clockspring assembly in the steering column. |
| 146400 mi US $500 |
replaced starter |
2006 Chevrolet TrailBlazer 4dr SUV
300-horsepower 5.3L V8 4-speed automatic RWD
| 235000 mi US $280 |
New alternator and battery and serpentine belt |
| 235000 mi | Gas gauge failed at 36,300 miles. We were told to wait until the fuel pump failed to replace it. The fuel pump never failed. |
2006 Chevrolet TrailBlazer 4dr SUV
291-horsepower 4.2L I6 4-speed automatic RWD
| 45000 mi | AC/ Heater blower inop. Dealer replace blower motor and controls. |
| 71000 mi US $15 |
Tail lamps blown, repaired in 10 minutes |
| 73000 mi US $440 |
Fuel gauge sensor inoperative. Serviceman replaced. |
| 86200 mi US $40 |
Headlamps, both sides out. Replaced. |
| 35000 mi | Replace HVAC mode door actuator |
| 52000 mi US $600 |
Replace fan clutch |
| 53000 mi US $100 |
HVAC mode door actuator was faulty |
| 61500 mi US $400 |
fuel pump sending unit died leaving the gas guage on empty. |
2006 Chevrolet TrailBlazer 4dr SUV
291-horsepower 4.2L I6 4-speed automatic 4WD w/low range
| 42000 mi | heater core leaking |
| 9000 mi US $50 |
Blower Motor Resistor had to be replaced. |
| 12000 mi US $40 |
Harness wire replaced to blower resistor. |
| 21000 mi US $130 |
Replaced entire RR lens. Connections rotted on inside from water leaking in. Replaced both front speakers as they were dead. |
| 19000 mi | Driver's door power module died and had to be replaced. No electronic functions on the door would work. |
2005 Chevrolet TrailBlazer 4dr SUV, ext.
300-horsepower 5.3L V8 4-speed automatic 4WD w/low range
| 9500 mi | Driver's side power window regulator replaced |
| 60400 mi | I/P cluster replaced due to faulty speedometer |
2005 Chevrolet TrailBlazer 4dr SUV, ext.
275-horsepower 4.2L I6 4-speed automatic 4WD w/low range
| 62000 mi | Thumping sound coming from left rear when front heat control on Defrost - back AC actuator in rear of vehicle. Update: later went away on its own. |
2005 Chevrolet TrailBlazer 4dr SUV
275-horsepower 4.2L I6 4-speed automatic 4WD w/low range
| 160000 mi | Remote Fob quit working. I went online and found that there are wires in the rear hatch that could be loose. Found the broken wires and replace them. Fob works and the rear wiper now works. |
| 176000 mi US $350 |
The Heater Fan quit working. It was shorted in a wiring harness. Repaired and good now |
| 109000 mi US $491 |
battery, alternator |
| 107000 mi | Changed condenser and evaporator. Plus vacuumed out the lines and recharged |
| 111000 mi US $180 |
Replace alternator, idler pulley and belt tensioner |
| 105200 mi US $300 |
Replace Blower Motor Resistor. After market and factory part the same. Mechanic has to solder wires together, GM recommendation, cannot "plug in." |
| 95200 mi | Fuel Sensor stopped working. Service Bulletin from GM was available. Took to nearby GM dealership and replaced fuel sensor inside tank for free. Had to remove tank, some connecting parts were corroded but dealer replaced these for free to |
| 80500 mi US $325 |
Broken wire at switch for front wipers...repaired Repair broken wire in ignition that control wipers |
| 74000 mi | Radio Stopped Working |
| 140800 mi US $285 |
instrument cluster, speedometer, gas gauge, both have not worked for several months. Finally broke down and ordered a rebuilt unit with a lifetime guarantee. |
2004 Chevrolet TrailBlazer
Engine not specified
| 108000 mi | Gauges stopped working after warrenty. |
2004 Chevrolet TrailBlazer 4dr SUV, ext.
290-horsepower 5.3L V8 4-speed automatic 4WD w/low range
| 127000 mi US $800 |
Speedometer not working |
2004 Chevrolet TrailBlazer 4dr SUV, ext.
275-horsepower 4.2L I6 4-speed automatic RWD
| 239500 mi US $10 |
An ongoing problem - headlamp low-beam bulbs burn out regularly and repeatedly. |
| 244300 mi US $600 |
had to replace alternator |
2004 Chevrolet TrailBlazer 4dr SUV, ext.
275-horsepower 4.2L I6 4-speed automatic 4WD w/low range
| 135000 mi | air conditioning line to rear ac system developed pin hole leaks as is common in these vehicles but have not fixed .. just the lines cost almost $900 to replace and the gas tank has to be removed to do so. patched some holes, must be others. |
| 154250 mi US $150 |
INSTALLED AC BLOCKING KIT TO REAR AC UNIT BECAUSE ALUMINUM LINES TO REAR UNIT HAD PIN HOLES THAT WERE LEAKING - Bought blocking kit online and installed so that only front AC system works now .. replace burned out low beam and high beam bulbs on opposite sides .. drain & replace oil, oil filter, and air filter, and discovered several burned out fuses and also replaced them .. |
| 114500 mi US $25 |
bad fuse |
2004 Chevrolet TrailBlazer 4dr SUV
275-horsepower 4.2L I6 4-speed automatic RWD
| 84000 mi US $980 |
A/C compressor stopped functioning. |
| 86000 mi US $625 |
Tachometer needle began moving erratically from 0 rpm to over 7000 rpm at idle or driving on the highway. The entire dash was disassembled to replace a small motor running the tachometer. |
2004 Chevrolet TrailBlazer 4dr SUV
275-horsepower 4.2L I6 4-speed automatic 4WD w/low range
| 93000 mi US $15 |
Replaced A/C compressor bearing myself. |
| 135200 mi US $30 |
Faulty gauges, including tach and speedometer. Acting up since winter. Wife tired of using the GPS as a substitute. Installed new motors. |
| 65000 mi US $50 |
Had to replace the HVAC Mode Actuator after battery was replaced. |
| 193820 mi ﷼210 |
AC is not cooling any more. There was a leak in the system. One pipe was repaired and some rubber joints also repaired then gas was filled again. |
| 199020 mi ﷼100 |
AC is cooling but air is not coming out of vents. Turned out the control unit was not working. So, it was replaced. |
| 91000 mi US $400 |
heater blower and resister |
| 84000 mi US $15 |
Replaced nonfunctioning stepper motor on speedometer |
| 89000 mi US $1200 |
Replace Air Conditioning Condensor and Evaporator Core |
| 59500 mi US $53 |
HVAC blower-resistor module and 8-prong pigtail. |
| 97960 mi C $30 |
low beam sockets on both sides melted... replaced with high temp sockets from canadian tire |
2003 Chevrolet TrailBlazer
Engine not specified
| 134000 mi US $280 |
Fuel gauge erratic and Speedometer inop. Removed instrument module and had it rebuilt. Left door speakers stopped working. Had shop trouble shoot speakers. Found driver door speaker was inop and had to replace that one speaker and reflash body module to clear errors. |
| 135000 mi US $300 |
Fuel level sensor in fuel tank sticks at 1/4 tank. Ran out of fuel twice. Had to have shop drop tank again and replace fuel sending module. |
| 79000 mi US $1000 |
Replaced alternator. Replaced alternator again. |
| 51000 mi US $5 |
Replace right front headlight harness plug and wire leads melted. |
2003 Chevrolet TrailBlazer 4dr SUV, ext.
275-horsepower 4.2L I6 4-speed automatic 4WD w/low range
| 156000 mi US $15 |
Ignition control module replacement. |
| 152000 mi US $250 |
Bad clutch on AC Compressor--replaced this as well as accumulator. |
| 171000 mi US $305 |
Pulled over for brake lights not working. Center high brake lamp worked and turn signals worked, but not tail brake lights. Shop replaced circuit boards for tail lamps. |
| 181900 mi US $400 |
Front wipers not working. Found blown fuse, replaced fuse, blown fuse again. Replaced Wiper motor. |
| 189000 mi US $700 |
AC compressor failed. Replaced with new compressor. |
| 132700 mi US $120 |
Blower fan resistor died. AC ok but fan won't run. |
| 118000 mi US $10 |
Instrument cluster failed. Cost of repair was estimated at $250. I ordered an eBay stepper motor and replaced it myself for $10. Another has since failed. |
| 135000 mi US $150 |
Replaced alternator |
2003 Chevrolet TrailBlazer 4dr SUV
275-horsepower 4.2L I6 4-speed automatic RWD
| 125000 mi US $120 |
A/C not cooling. Checked for leaks and recharged system. |
| 129000 mi US $50 |
Window regulator and motor |
| 153000 mi US $230 |
alternator Battery |
| 45000 mi | High Fan has quit working |
| 138000 mi US $860 |
R&R fan clutch and water pump. |
| 142000 mi US $330 |
Replace gauge cluster stepper motors, replace thermostat. |
2003 Chevrolet TrailBlazer 4dr SUV
275-horsepower 4.2L I6 4-speed automatic 4WD w/low range
| 66400 mi US $200 |
Heater fan control module failed. |
| 225000 mi US $100 |
A sensor in the tail light |
| 119000 mi US $900 |
Both headlamps replaced ($400 each). Can't just replace a bulb "successfully" in this car - entire assembly must be replaced. Chevy wanted $700 per. Got them on aftermarket for $400 per. Chevy stinks. |
2002 Chevrolet TrailBlazer
Engine not specified
| 131000 mi US $80 |
Regulator on rear driver's window went out |
2002 Chevrolet TrailBlazer 4dr SUV, ext.
270-horsepower 4.2L I6 4-speed automatic RWD
| 230500 mi US $350 |
Replaced alternator and computer lost it's memory. Had to reprogram computer. |
2002 Chevrolet TrailBlazer 4dr SUV, ext.
270-horsepower 4.2L I6 4-speed automatic 4WD w/low range
| 118000 mi US $125 |
Replaced right side rear door window regulator & motor after the cable in the window regulator came out of the spool. |
2002 Chevrolet TrailBlazer 4dr SUV
270-horsepower 4.2L I6 4-speed automatic RWD
| 34000 mi US $45 |
Had to replace the blower motor resistor. |
| 90000 mi US $284 |
Fan control nob quit working for the second time. |
| 120000 mi US $115 |
Motor for Vent Control Solenoid went out on driver side. |
| 147000 mi US $300 |
Fix air conditioner |
2002 Chevrolet TrailBlazer 4dr SUV
270-horsepower 4.2L I6 4-speed automatic 4WD w/low range
| 97000 mi US $450 |
rear passenger window motor failed. replaced. |
| 101000 mi | yet another power window failure. This time rear passeger side. cannot replace as not time to leave car. Living with until school break. Now rear passenger window stopped working. Son in school 12 hours each day so the repair cannot be addressed. Window stays closed as long as nobody tries to use. |
| 104000 mi US $250 |
passenger rear window motor failed. replaced. |
| 63000 mi | Outside ambient temp sensor bad. Replaced with new one. |
| 106000 mi US $80 |
Front Headlight out |
| 144300 mi US $350 |
Ac compressor bearing very noisy |
| 89000 mi US $85 |
and I replaced 3rd brake light myself. the part cost 85.00 |
| 166000 mi US $250 |
Replaced both low and high beam headlights left and right side. Found right side housing was loose from the mounting clip. Adjusted left side housing up w/ adjustment screw to even out headlights. Noticed increased hesitance in starting over several trips in one day. Finally would not start. Had a friend help tow back home (<1/2 mile). Determined starter was issue (OEM part). Replaced with new and also replaced ignition switch. |
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