Problems · by component

1999 Chevrolet Blazer electrical system problems

40 owner complaints to NHTSA about the 1999 Chevrolet Blazer cite electrical system, 9% of all 442 complaints for this model year.

Complaints
40
9% of all complaints
Crashes
1
Reported by owners
Fires
5
Reported by owners
Injuries
2
Reported by owners
01 —Owner reports

What owners say about the electrical system

Verbatim from NHTSA complaints, newest first
“THE ABS SYSTEMM IS NOT WORKING AND THE IS A SHORT IN THE FRONT END,..CAUSING THE BATTERY TO DIE. AMAZINGLY AFTER THE BATTERY WAS REMOVED FROM THE VEHICLE THE LIGHTS ON THE BUMPER THAT ARE SUPPOSED TO LIGHT UP THE LICENESS PLATE WAS STILL ON. LONG WITH OTHER LIGHTS UNDER THE HOOD. HOW IS THIS POSSIBLE.,,UNLESS THERE IS AN ALTERNATE POWER SOURCE THAT I WAS NEVER MADE AWARE OF. THE IS POLICE DOCUMITATON ON THIS.”
Owner complaint to NHTSAFiled Jan 22, 2018Electrical system, Service brakes, EngineCrash reportedODI 11064066
“BOUGHT A BLAZER FROM LEE XARS IN FORT MYERS. WAS MAKING A LOUD NOISE SO I TOOK IT TO A AUTO REPAIR CLOSE TO MY HOUSE BECAUSE I WAS AFRAID TO DRIVE IT ALL THE WAY BACK TO TOWN. WHEN I BOUGHT IT THEY OUT A RELAY SWITCH SO THE AC WOULD BLOW COLD. HERES WHATMY MECHANIC FOUND WHAT WAS WRONG.A/C COMPRESSOR CLUTCH WAS DEFECTIVE AND THE A/C CLUTCH CONTROLRP RELAYWAS BYPASSED IMPROPERLY AND NOT FUSED WHICH COULD HAVE STARTED A FIRE. WHEN I WENT UP TO GET MY TITLE AND TAGS THE GUY WHO RUNS THE REPAIR SHOP WANTED TO KNOW WHAT I WANTED HIM TO DO ABOUT IT. THE OWNER WASNT THERE SO I LEFT A COPY OF MY INVOICE. HE WAS SUPPOSE TO CALL ME BUT HASN'T. THEY NEED TO BE CHECKED OUT. THERE DEAL IS IF SOMETHING BRAKES ON THE CAR THEY CAN GET CHEAP PARTS AND THEY CHARGE CHEAP LABOR. THIS ALSO HAPPENED TO OTHER PEOPLE AS I BEEN READING ON THERE REVIEWS.”
Owner complaint to NHTSAFiled May 3, 2017Electrical systemODI 10983293
“BOUGHT THIS CAR FROM LEE AUTO IN FORT MYERS. WAS MAKING A LOUD NOISE. TOOK IT TO A CLOSE MECHANIC TO CHECK THE PROBLEM BECAUSE I WAS AFRAID TO DRIVE IT BACK THERE TO GET CHECKED OUT. THIS IS WHAT MY MECHANIC SAID. A/C COMPRESSOR WAS DEFECTIVE AND THE A/C CLUTCH CONTROL RELAY WAS BYPASSED IMPROPERLY AND NOT FUSED WHICH COULD HAVE STARTED A FIRE IN THE ENGINE. WHEN I BOUGHT THE CAR THE SALESMAN TOLD ME HE WAS GOING TO PUT A RELAY SWITCH IN BECAUSE IT WAS T BLOWING COLD AIR. TOLD LEE CARS ABOUT IT AND HAVE T HEARD BACK. ITS NOT GOOD TO SELL UNSAFE CARS.”
Owner complaint to NHTSAFiled May 1, 2017Electrical systemODI 10981587
“MULTIFUNCTION SWITCH VERY EXPENSIVE TO REPLACE FLASHER RELAY CLICKING NON STOP / APPLY BRAKES IT STOPS WHAT ELSE IS MALFUNCTIONING THAT COULD BE DANGEROUS? OTHER VEHICLES HAVE BEEN RECALLED WITH SAME ISSUE. PLEASE INVESTIGATE, CONSUMERS NEED REPAIR OPTIONS THAT ARE NOT EXCESSIVELY COSTLY.”
Owner complaint to NHTSAFiled Aug 27, 2016Electrical systemODI 10901959
“1999 CHEVROLET BLAZER LT - MULTIFUNCTION SWITCH (COMMON PROBLEM!) IS MALFUNCTIONING. TURN SIGNAL/FLASHER RELAY IS CONSTANTLY CLICKING WHETHER SIGNALS ARE IN USE OR NOT -- UNLESS THE BRAKES ARE APPLIED. GOOD SIGN OF AN ELECTRICAL SHORT. THE CAUSE OF THIS ISSUE IS THE GREASE INSIDE THE SWITCH, APPLIED AT THE FACTORY, RUNNING FROM CONTACT TO CONTACT. THIS SWITCH INCLUDES THE WIPERS, CRUISE CONTROL, TURN SIGNALS, HAZARDS, AND CAN ALSO CAUSE VEHICLE LIGHTING (HEADLIGHTS, BRAKE LIGHTS) TO MALFUNCTION. MANY CASES INCLUDE NON-WORKING BRAKE LIGHTS! OTHERS HAVE REPORTED SMOKE COMING FROM THE SWITCH AS THE CONTACTS ARE SHORTED BY THE GREASE. I INHERITED THIS VEHICLE FROM MY GRANDFATHER, WHO COULDN'T HEAR THE RELAY FIRING -- IT IS THE ONLY INDICATOR INSIDE THE VEHICLE THAT SOMETHING MAY BE GOING WRONG. THERE ARE NO VISIBLE INDICATORS INSIDE THE VEHICLE LETTING A PERSON KNOW THEIR LIGHTS ARE MALFUNCTIONING. AS THERE IS NO RECALL FOR THIS YEAR OF BLAZER (THOUGH I UNDERSTAND OTHER YEARS HAVE HAD THE SAME PROBLEM RECALLED), I WILL BE REPLACING THE SWITCH ON MY OWN. DEALER QUOTED THE PRICE FOR THE PART ALONE WELL OUT OF MY PRICE RANGE (NEVERMIND LABOR), SO I'M GOING TO HAVE TO…”
Owner complaint to NHTSAFiled Nov 7, 2012Electrical system, Exterior lightingODI 10483606
“NO EVENTS JUST AFTER I HAVE BEEN DRIVING A WHILE EVERY DAY ALL LIGHTS INCLUDING DASH FLICKER AND THEN WHEN I SHUT OFF FUEL PUMP WON'T PUMP UP. THIS HAPPENS ONCE A DAY AND WILL NOT RESTART TILL NEXT DAY. *TR”
Owner complaint to NHTSAFiled Dec 1, 2010Fuel system, gasoline, Electrical systemODI 10368538

Showing 6 of 40 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.