2003 Chevrolet Trailblazer EXT Electrical System Problems
NHTSA component category: ELECTRICAL SYSTEM · data through 07/14/2026
Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
How electrical system ranks on this vehicle
Share of the 313 complaints citing each category; one complaint can cite several. Full breakdown on the 2003 Chevrolet Trailblazer EXT overview page.
What owners report
“5 MONTHS AFTER I PURCHASED MY 2003 CHEVY TRAILBLAZER I WENT OUT TO START THE CAR AND IT WOULD NOT START. I TOOK THE CAR…”NHTSA complaint 10152667 — filed 03/14/2006
“AS I AM GOING DOWN THE ROAD THE TACHOMETER STARTS TO JUMP AROUND AND THEN I LOSE THE DIRECTIONALS AND MY LIGHTS. IF I TURN…”NHTSA complaint 10122212 — filed 05/26/2005
“HAVE HAD MY 2003 TRAILBLAZER LT 2WD V8 IN THE SHOP UNDER WARRANTY MANY TIMES. FIRST WAS A RECALL ON THE DRIVE SHAFT WHICH WAS…”NHTSA complaint 10110031 — filed 02/07/2005
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Electrical System complaints by year filed
Frequently asked questions
Does the 2003 Chevrolet Trailblazer EXT have electrical system problems?
Electrical System is the most-reported problem area on the 2003 Chevrolet Trailblazer EXT: 52 of 313 complaints on file (16.6%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2003 Chevrolet Trailblazer EXT have in total?
313 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 7 involved a crash, 6 involved a fire, 11 reported injuries, and none reported deaths.
What does NHTSA's electrical system category include?
NHTSA assigns each complaint to standard component categories; this page reports the ELECTRICAL SYSTEM category exactly as NHTSA defines and records it.
