Problems with 2003 Chevrolet TrailBlazer ELECTRICAL SYSTEM

Dt: consumer states that on six different occasions vehicle's brake system light came on and the vehicle shut down . service department told him 4-5 different reasons for this, i.e. the tailgate module or vehicle speed module. they have a reading on the computer and they weren't sure which it was. consumer has to wait approximately 10-15 minutes for vehicle to cool down and restart. consumer took vehicle to dealer for this problem on july 9, 2004, august 26, 2004, and september 28,2004. happened again on may 27, 2005, and june 2, 2005, and is currently at dealer for the same problem.*ak

While driving 55 mph, the vehicle shut down. the dealer stated that the ignition switch malfunctioned. *ak all of the lights on the dash board blinked before the consumer even realized that the vehicle had no power. *sc *jb

The 2003 trailblazer with 9000 miles was towed twice for engine electrical problems. *jb

While driving consumer noticed that service four wheel drive indicator was flashing. technician upgraded computer, and replaced transfer case. *ak

The vehicle stalled without warning. when the incident occured the vehicle lost power steering and brakes. the vehicle would restart after sitting for 5 minutes. the dealership has replaced the ignition and the ground wire. they also upgraded the computer. the problem hasn't recurred since the ground wire was replaced. *jb

Power to the rear, or 5th. door shorts in and out at will, you will never know when the vehicle is securely locked. the rap feature, reserve auxillary power shorts in and out. the rear or 5th. door windshield wiper shorts in and out, causing you to not be able to see behind you. *ak

My 2003 trailblazer will not crank up all the time. it will not even turnover sometimes other times it will turn over and stop. this has happened on numerous occassions for the past 8 months. i beleive gm is waiting for the warrenty to expire. they have replaced my ignition system and fuel system. it still has problems with intermittent cranking. it has happened at the dealership and that is why my ignition system was replaced. gm does not want to do anything. i have been stranded numerous times due to this problem. they got my money and that is all they care about. please anyone i need help. where else do i turn. *ak

2003 chevrolet trailblazer speedometer failed *gr the speedometer would register as high as 120 mph. the vehicle was inspected and it was determined there was an internal malfunction on the instrument cluster. the consumer was informed it would cost $550 for a replacement cluster. the rear passenger taillight and passenger side head light burned out and was replaced. the water pump and serpentine belt were replaced. the mechanic noted a broken bolt in the water pump that held down the housing and the ball joints were replaced. *jb

I have had the exact problems as stated in 10047425. windshield wipers went out completely on a rainy day, module replaced, a/c broke on a hot day-fixed, power steering assist stopped working completely making driving the vehicle nearly impossible, vehicle started on reserve power when temp hit -6 degrees, heater motor stopped working completely the next day -10 degrees. basically this vehicle doesn't like changes in weather. *ak

Complaint received via e-mail." i would like to share the defects discovered on my vehicle since i purchased this on october 2003. few months i drove my trailblazer, i was stuck at the airport because it won't start and i brought it to the dealership for repair which lasted for 3 days. they told me it was just a case of low battery power. i was not in agreement with their reason. i wrote gm headquarters demanding an exchange or replacement of the truck. they declined my request, instead they offered me an extended warranty. the following year, i was driving at around 25 mph, when i changed gear all of a sudden the gear shifter came loose and practically detached it's linkage. i panicked and slowly pulled over to the side of the road. the dealer repaired the shifter for free. then just this month i was driving on the freeway at around 50 mph, i noticed the rpm was between 7-8 and the engine revved hard, but there was no power. the speed remained constant even when i pressed the gas pedal fully. i brought the vehicle to the dealership and they found out that the transmission is defective and they replaced it under warranty. the total mileage driven as of this time is 30,000 miles." *jb

The accelerator pedal position sensor failed causing loss of power to the vehicle. the vehicle would only accelerate to 10mph and almost caused an accident. i also had/have numerous other problems with the vehicle.*ak

Consumer was trying to accelerate but vehicle would not move, and then stalled. consumer was able to restart the vehicle, and drove it to the dealer for analysis. however, the mechanic was not able to resolve the problem. *ak

Dashboard extremely hot. fire in wiring 2x / 3x short in main fuse vehicle would not restart. tow into dealer 3x. dealer replaced fuse and wiring could not explain cause for problem or why persists. dealer kept vehicle a week claimed to drive it in effort to cause problem but found vehicle buried in snow from a snowfall which occurred 3 days prior. dealer claimed ignorance to recurring problem of this type w/this vehicle. **nm

I experienced a problem with my trail blazer about a month ago. the problem was annunciated by the engine light and reduced power. the first occurrence was while i was merging at a toll plaza in chicago that cleared after stopping the vehicle and restarting. i experienced a problem with my trail blazer about a month ago. the problem was annunciated by the engine light and reduced power. several weeks later the second time the problem recurred was on a secondary road and third time while making a left at an intersection and the engine light did not clear. the dealer repaired the vehicle after replacing the accelerator unit, which i understand replaced a simple accelerator cable. the concern is the projected failure of a critical part of the vehicle failing while merging or making left turns in front of on coming traffic and the significant risk to injury to the driver and passengers inside the vehicle. if gm engineer can design an electronic component to replace a simple accelerator cable, i assume the component standards would equal the same reliability as the cable. response by chevrolet: good evening! thank you for contacting the chevrolet customer assistance center. we sincerely apologize for the engine light and reduced power concerns you were experiencing on your 2003 chevrolet trailblazer. in addition, we also deeply regret to hear the misfortunate incidents you experienced while the concern was being resolved. we, at chevrolet, understand that of all the factors involved in customer satisfaction, safety is of primary concern. please be assured that chevrolet works diligently to provide a high quality product that we hope will exceed your expectations. however, when dealing with a mechanical part, there is always a chance that something might fail. that is something we cannot speculate on; and why we do provide a warranty on that item of 12 months, or 12,000 miles, whichever comes first.*ak *tr

Our windshield wipers were inoperable. the wiper switch was turned on with absolutely no response from the wipers. the dealership has replaced it. however, other electrical problems keep occurring. for example, our air conditioning switch malfunctioned, the onstar did not send tracking information properly, the alternator needed to be replaced, and the fan for the heater would not work at any speed except low. we have only had this vehicle since august. i am thinking that this in an electrical problem instead of each individual piece being faulty. please let us know if you are hearing more of the same types of information. *la

The instrument panel goes crazy. i never know what speed i am going . one day it will work and the next it does not. *tr

Lost total electrical power/stalled while idling at first, then when going about 35 mph. dealer "reset" computer according to a service bulletin which says this is a known problem. service bulletin says it is occurs when module on powertrain checks evap system, there is some type of a "glitch" which shuts everything down. according to gm, there is no fix yet for the problem. my concern is driving on the highway, this could happen and cause crash because there is no control of vehicle. if it happens during night, other drivers will not see me because all lights go out, power steering and power brakes are lost. resetting the computer did not help as it happened within 2 days again. please help asap because i'm afraid to drive this vehicle!*ak

Brake lights failed intermittently. *ak the consumer was involved in an accident because of the faulty brake lights. the dealer determined that the computer switch was the cause of the problem. *nlm

On two occasions when turning the vehicle off from running - there was a loud buzz on the radio and then the clock reset like an electrical short occurred. *jb

Owned 03 trailblazer for 4 months and has given me electrical & mechanical problems. i had one problem since i first bought this vehicle and now i have 13 things that are a danger to me and my family. ac turns on by itself whether car is off or on. ac has turned on while i was driving frightening the hell out of me causing me to almost lose control of the wheel. ac ,engine lacks horse power,hand brake,hazard lights,lights turn off, mirrors move by themselves, car boggs as if it wants to turn off, while driving steering wheel moves by itself, gas gauge has read low fuel when gas is full. i am terrified the car will give out with my child and i in it.i have tried to have vehicle repaired numerous times and still dealer can't seem to duplicate the problem. the vehicle is a hazard to me and my family and to all those who own one. need the problem to be fixed before any tragedies occur. *ak

On 7/26/2003, the owner heard the motor running while the vehicle was off. the owner disconnected the battery to stop the motor from running. this caused the owner to manually lock the doors but the hatch would not lock manually. on 7/31/2003, the vehicle was taken to the dealer who found a short in a wire under the hood and corrected the problem. please provide details. *ph consumer stated there is no way to open the rear hatch if there is an electrical failure. there is no mechanical device to lock or unlock the hatch door. this could be a significant safety hazard. *ph *jb

Tail light is continuously burning out without warning. cause unknown.*ak the right front headlight burned out on 07/17/03. on the way to the dealer to get the headlight replaced, the check engine light illuminated. the consumer was advised that the engine light was covered under recall and replaced the circuit board. consumer questioned whether the rear safety hazard would be repaired if chevrolet is just changing bulbs without fixing the circuit board. *ph *nlm

While drivning the horn and door light would come on intermittently. *ak *cb *nlm

The consumer stated the rear tail light were inoperative. the vehicle was taken to the dealer for inspection and the mechanic informed the consumer that the tail lights needed to be replaced. the problem still continued. please provide further details. *jb

Vehicle's dash gauges came on and speedometer started fluctuating after 35 miles driving and vehicle stalled out, not being able to restart. computer was replaced by dealer. problem arose again about a week later. gm had dealer replace another part in i believe the ignition key area. check engine light came on again in a couple weeks and vehicle would not start for dealer after it was driven there. dealer found wire connection in wiring harness to computer was not making continuous contact at a connection. also dealer had to replace a switch when the a/c would work intermittently. luckily i have a good efficient dealer and service department who cares about their customers. *jb

I have had several repairs done to my new vehicle. i have had the 2003 trailblazer for 7 months and it has been in the shop 7 times-2 times for the coolant system-1 time for my master cylinder-3 times for my circuit boards-now for my steering and my starter( i believe my truck is in the shop as i am typing this letter) i have been trying to work with the dealership and gm but no one is trying to replace my truck with something that is not in the shop every month. thanks. *la

The vehicle experienced an electrical system failure. which resulted in the gas light coming on, then the vehicle dying out. *ak gas mileage showed less than it should had been. the security system light failed.*ts. the check engine light illuminated on numerous occasions. *jb

Speedometer on my 2003 chevy trailblazer not working. tachometer not working. speed not being measured right. i ran off the road turning on a curve because i was going too fast and was not aware of the incorrect speed.

My 11-month old 2003 chevrolet trailblazer has had multiple quality problems, twice affecting my safety. most of the problems have been electrical in nature. the 4wd has become inoperable numerous times, once while driving in snow. in another incident during a severe thunderstorm at night the air conditioner (a/c) failed and i was unable to defrost my windshield in order to see. after one dealer failed to diagnose the 4wd problem, another dealer replaced my ignition switch because the technician said i had no power at all going to the "rear grid." i continue to have intermittent electrical problems, including near stalling at a traffic light, and ongoing 4wd failures. the car also has very jerky motion when in 4wd reverse, of course, when the 4wd is working at all. the dealer told me that was normal and now i see there is a service bulletin on the problem. *la