Problems with 2005 Chevrolet TrailBlazer ELECTRICAL SYSTEM

2005 trail blazer driving at 65 mph stopped running no warning. drifted to side of road. all electrical power not working. *nm

My 2005 trailblazers headlights flash when you let up off the gas pedal. also, the amp gauge drops, the engine revs down and the inside fans and lights dim down. the flashing of the headlights is getting worse, and like others have reported, the traffic ahead thinks you are blinking them to either pull over, or speed up. i too notice it more in the colder months. i agree -this is definitely a safety hazard! something needs to be done about it. i have reported the problem, but they say nothing can be done. purchased this suv brand new, had problem from the beginning. too many people with same problem. general motors should be ashamed. *tr

Dt: the contact states while driving two engine lights come on and the engine powered down. when the vehicle was powering down she could press the accelerator to the floor and it moved along. when this happened none of the brake lights came on. therefore, contact's vehicle was almost hit by an 18 wheeler. she continued to drive the vehicle at the low speed. this happens at no particular speed. the vehicle has been to the dealership ,and they replaced the computer and throttle body. the dealership has been unable to diagnose the problem. *ak

Purchased 2005 trailblazer 3/8/05 @ bacon chevrolet in palestine,tx. problems: while driving headlight & interior dashboard lights flicker & shut off, engine loses power & surges lunging forward, battery gauge drops & pegs out, check engine light comes on, ding alarm, radio, electric locks, etc, w/ no key in ignition go off & on, no power cant start vehicle. svc mgr/tech comments: cant duplicate complaint, no codes showing, gm bulletin stating "normal" & working as designed, can not replace or work on anymore due to tech/gm motors stating "normal", or until problem can be duplicated or until they have a way to fix. repairs:(total of 9 times in shop) 2 headlamp switches, 1 battery, 3 times wiring harness gone through, numerous pcm updates/reprograms, fuel pressure check, ipc reprogram, data recorder installed, replaced bcm body control module, workorders have been altered & work stated done that has not been done. i have all my workorders. conclusion: took to bbb of tyler,tx.cs#chv0592738, had arbitration hearing. bbb's decision was that their opinion was that the lights going off while driving was not a safety issue. thought the bbb was suppose to be a consumer advocate! i found this website while doing a college research paper. how many other consumers have same problem, but do not know about this website. will anything be done before someone is killed or is that what it will take! *tr

I have brought my vechicle to the dealership for service on three seprate ocasions for the following condition: the voltage fluctuates between 10 and 15 volts, causing the headlights and instrument panel to go dim, then bright again.*ak the dealership was unable to diagnose or reproduce the problem. today 04/06/2005 the dealership stated they contacted gm, and stated that this was normal. this is not normal! i have never driven a vechicle in which headlights going dim, then bright normal. it is almost as if the lights are flashing at times. the dealership stated that there are tsbs stating that this is normal. this to me creates an unsafe driving environment. i found the following statement on gm techlink: http://www.gmtechlink.com/images/issues/cnt_mo/tlcme.html some customers may comment that their instrument panel voltmeter is fluctuating between 12 and 14 volts on their new 2005 model year light duty full size pickup/utility vehicle. for 2005 model year, light duty full size pickups and utilities, are equipped with a new regulated voltage control (rvc) system, covered in the september 2004 techlink. the rvc system allows changes to vehicle voltage, up or down, under various scenarios. battery state of charge and the vehicle?s present electrical needs are only two of numerous conditions taken into account. this will cause the voltmeter to fluctuate between 12 and 14 volts. by comparison, conventional systems usually maintain a more consistent reading of 14 volts. this fluctuation with the rvc system is normal system operation and no repairs should be attempted.

Tl*the contact owns a 2005 chevrolet trailblazer. since purchasing the vehicle, the headlamps flicker or dim while driving, similar to a power surge. the dealer was initially unable to duplicate the failure. when the failure was able to be duplicated, the dealer was unable to make a repair. at the end of september of 2007, the steering column made a sparking sound and the dealer could not duplicate the failure once more. on september 20, 2007, the radio and all the components on the instrument panel failed intermittently. the vehicle had to be turned off and restarted for them to eventually operate again. in addition, the dome lights would remain illuminated. the driver's side door latches were replaced twice. the rear hatchback latch was replaced twice. when the key was removed from the ignition, the key buzzer would continue to sound. on january 25, 2008, the rear wiper motor was replaced and failed again on march 4, 2008. the current mileage was 36,182 and failure mileage was 70. updated 4/2/08 *cn the consumer stated the emblem on the rear tailgate loosing color, brake pads and rotors are worn. updated 04/02/08 *tr

Speedomter failure. *tr

Dt: for no reason the vehicle shuts down. the vehicle has been taken to the dealer four times for this problem. *nm

The headlights, dash lights and dome lights all flicker intermittently. i have had this problem since nov 2004 when i bought the truck. recently i've noticed the battery gauge fluctuate rather wildly when this problem is occurring. in my case, there seems to be a connection to the outside temperature. however, given the intermittent nature of the problem i can't be certain. i have noticed the problem more when the temps are around 35-45f. the dealer has seen the vehicle several times for the problem and still can't determine the issue. the big problem is they haven't been able to reproduce the condition. the truck now has 75000 miles and is 4 years old. the flickering/flashing has gotten much worse. on dec 2, 2008 the flickering was more akin to outright flashing. other drivers being noticeably affected. *tr

2005 cheverlot trailblazer has had an issue since i purchased it in 2004 with stalling out. however over the last 4 years i have had an issue of no start... everything has been replaced by the dealer ignition switch, alternator, starter, exhaust, etc.... last result was the pcm powertrain module supposedly the brains of the car. however the same day it stalled again, most recently my dealership took it for a week and said they could not reduplicate issue. so there again i am at the same place where the car will be fine for weeks then do a no start untill after serveral attempts and smell of gas finally the car will start. chevrelot trailblazer have known this problem for awhile has done nothing about it ...resolve the issue and do a recall spent over $10,000 on just maintenance.. what is chevy going to do about this issue? *tr ## vin failed ##