Problems · by component

2000 Chevrolet Blazer electrical system problems

51 owner complaints to NHTSA about the 2000 Chevrolet Blazer cite electrical system, 9% of all 600 complaints for this model year.

Complaints
51
9% of all complaints
Crashes
1
Reported by owners
Fires
3
Reported by owners
Injuries
0
Reported by owners
01 —Owner reports

What owners say about the electrical system

Verbatim from NHTSA complaints, newest first
“RELAY FOR 4 WAY FLASHERS IS CLICKING, ONLINE MY PROBLEM WITH FLASHER RELAY AND BRAKE LIGHTS IS LISTED UNDER RECALL 01073B. I HAVE NO IDEA IF THIS RECALL WAS DONE, DONE PROPERLY OR JUST TIMED OUT.”
Owner complaint to NHTSAFiled Apr 6, 2021Electrical systemODI 11406641
“IT STARTED WITH MY GAUGES BOUNCING ALL OVER GOING ON AND OFF , THEN IT FELT LIKE THE BRAKES WERE ON AND I HAD TO GIVE IT ALOT OF GAS TO GET GOING.NOW THE DASH WILL WORK WHEN I TURN THE KEY ON BUT AS SOON AS IT STARTS IT GOES OUT WITH THE EXCEPTION OF THE OIL PRESSURE AND THE CHARGING GAUGE. THE TRANSMISSION ISNT WORKING RIGHT AT ALL AND I DONT DARE DRIVE IT ANYWHERE. THE FUSE BOX UNDER THE HOOD DOES NOT TEST RIGHT, ONLY ABOUT HALF OF IT HAS POWER AND I AM AT A LOSS THERE! THERE HAS BEEN ELECTRICAL PROBNLEMS WITH IT EVER SINCE I BOUGHT IT.”
Owner complaint to NHTSAFiled Aug 25, 2020Power train, Electrical systemODI 11351063
“FUEL SENSOR PROBLEM THAT'S BEEN GOING ON WITH A LOT OF 2000 CHEVY BLAZER ALSO TRAIL BLAZERS AND ALSO THE DISTRIBUTOR THERE IS NO SEAL UNDER THE DISTRIBUTOR CAP CAUSE IT TO HAVE MOISTURE AND CAUSE IT NOT TO RUN AND YOU HAVE TO REPLACE IT THIS IS TO THE COMPANY OR WHOEVER'S IN CHARGE NOW THE FUEL SYSTEM ITSELF IS CALLED A SPIDER SENSE OR WHAT I CALL IT NOT TO RUN IT ALL THE TIME THEY MUST BE SOME TYPE OF FILTER BESIDES THE ONE ON SIDE OF THE VEHICLE ITSELF BECAUSE THEY GO OUT WITHIN A YEAR OR MAYBE TWO YEARS OR SO THIS MUST BE ADDRESSED SO HOPEFULLY I GET SOME INFORMATION TO HELP FIX THE VEHICLE THAT I DON'T THINK YOU I HOPE I COULD GET SOME INFORMATION ABOUT IT BECAUSE THE FULE SENSOR IS A BIG DEAL WEN THEY LAST FOR ABOUT A YEAR AND THEN TO BUY ONE FOR ABOUT 400 DOLLARS AND THEN PAY ANOTHER 1000 DOLLARS FOR LABOR I THINK THAT THE INJECTION FOR THE FULE SENSOR SHOULD BE ADDRESSED HOPEFULLY HAVE A RE CALL THANK YOU FOR TAKING THE TIME TO READ THIS AND HOPE YOU CAN HELP GOD BLESS”
Owner complaint to NHTSAFiled May 30, 2019Electrical system, Fuel/propulsion systemODI 11216998
“MY CUSTOMER COMPLAINED OF A TRANSMISSION FAILURE INVOLVING, BUT NOT LIMITED TO A DTC P0785. I ASKED MY CUSTOMER IF THE INVOLVED VEHICLE (2000 CHEVROLET BLAZER) HAD ANY DEALER OR AFTER MARKET ACCESSORIES INSTALLED, CUSTOMER ADAMANTLY REPLIED: NO, "BONE STOCK GM." MY CUSTOMER WAS NOT AWARE THAT THE INVOLVED VEHICLE HAD A THEFT DETERRENT SYSTEM, MANUFACTURED BY "KARR" AND DISTRIBUTED BY AUDIOVOX WITH INSTALLERS NATIONWIDE. I HAVE BEEN ACTIVELY INVOLVED WITH GM DEALERSHIPS FOR OVER FORTY YEARS AND POSSESS A WEALTH OF EXPERIENCE IN PARTS AND SERVICE EXPERIENCE. I REMOVED THE SUSPECT SECURITY SYSTEM AND REPAIRED THE DAMAGED WIRING WHICH RESULTED IN THE IMPROPER INSTALLATION. IN THE PAST WEEK I HAVE BEEN CONFRONTED WITH FOUR CUSTOMER COMPLAINTS WHICH RESULTED FROM SECURITY SYSTEMS, AFTERMARKET RADIOS AND INCLUDING AFTERMARKET HEADLAMPS. THESE AFTERMARKET COMPONENTS ARE THE DIRECT CAUSE OF SYSTEM FAILURES INVOLVING ENGINE MANAGEMENT SYSTEMS, LIGHTS, AND NUMEROUS ELECTRICAL FAILURES. I SINCERELY REQUEST IMMEDIATE AND THOROUGH INVESTIGATION WHICH I REMAIN CONFIDENT WILL RESULT IN MASSIVE RECALLS OF THESE INFERIOR PRODUCTS. *TR”
Owner complaint to NHTSAFiled Mar 10, 2016Power train, Electrical system, EquipmentODI 10846051
“MY CUSTOMER COMPLAINED OF A TRANSMISSION FAILURE INVOLVING, BUT NOT LIMITED TO A DTC P0785. I ASKED MY CUSTOMER IF THE INVOLVED VEHICLE (2000 CHEVROLET BLAZER) HAD ANY DEALER OR AFTER MARKET ACCESSORIES INSTALLED, CUSTOMER ADAMANTLY REPLIED: NO, "BONE STOCK GM." MY CUSTOMER WAS NOT AWARE THAT THE INVOLVED VEHICLE HAD A THEFT DETERRENT SYSTEM, MANUFACTURED BY "KARR" AND DISTRIBUTED BY AUDIOVOX WITH INSTALLERS NATIONWIDE. I HAVE BEEN ACTIVELY INVOLVED WITH GM DEALERSHIPS FOR OVER FORTY YEARS AND POSSESS A WEALTH OF EXPERIENCE IN PARTS AND SERVICE EXPERIENCE. I REMOVED THE SUSPECT SECURITY SYSTEM AND REPAIRED THE DAMAGED WIRING WHICH RESULTED IN THE IMPROPER INSTALLATION. IN THE PAST WEEK I HAVE BEEN CONFRONTED WITH FOUR CUSTOMER COMPLAINTS WHICH RESULTED FROM SECURITY SYSTEMS, AFTERMARKET RADIOS AND INCLUDING AFTERMARKET HEADLAMPS. THESE AFTERMARKET COMPONENTS ARE THE DIRECT CAUSE OF SYSTEM FAILURES INVOLVING ENGINE MANAGEMENT SYSTEMS, LIGHTS, AND NUMEROUS ELECTRICAL FAILURES. I SINCERELY REQUEST IMMEDIATE AND THOROUGH INVESTIGATION WHICH I REMAIN CONFIDENT WILL RESULT IN MASSIVE RECALLS OF THESE INFERIOR PRODUCTS. *TR”
Owner complaint to NHTSAFiled Mar 7, 2016Power train, Electrical system, Exterior lightingODI 10840284
“TL* THE CONTACT OWNS A 2000 CHEVROLET BLAZER. THE CONTACT STATED THAT THE HEATER AND AIR CONDITIONER FAILED TO FUNCTION. IN ADDITION, THE CONTACT STATED THAT THE FOUR WHEEL DRIVE WAS ACTIVATED, BUT FAILED TO ENGAGE AND THE OIL PRESSURE GAUGE DISPLAYED AN INCORRECT READING. THE ABS WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO A DEALER. THE TECHNICIAN DIAGNOSED THAT THE TRANSFER CASE NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURES. THE FAILURE MILEAGE WAS 80,000.”
Owner complaint to NHTSAFiled Mar 26, 2015Power train, Electrical system, Service brakesODI 10701969

Showing 6 of 51 reports. Read every report on NHTSA.gov.

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

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