2004 Chevrolet Trailblazer EXT Electrical System Problems
NHTSA component category: ELECTRICAL SYSTEM · data through 07/12/2026
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 261 complaints citing each category; one complaint can cite several. Full breakdown on the 2004 Chevrolet Trailblazer EXT overview page.
What owners report
“2004 CHEVROLET TRAILBLAZER SPEEDOMETER AND FUEL GAUGE ARE UNRELIABLE. SPEEDOMETER SOMETIMES SEEMS TO WORK BUT IS NO ACCURATE WHEN IT DOES SHOW A SPEED. FUEL…”NHTSA complaint 10295089 — filed 12/09/2009
“I HAVE A 2004 TRAILBLAZER I PURCHASED IN 2007 FOR MY WIFE. AFTER ABOUT A YEAR THE SPEEDOMETER IS NOT WORKING AT ALL. AFTER A…”NHTSA complaint 10294587 — filed 12/05/2009
“WE ARE THE OWNER OF A 2004 CHEVY TRAILBLAZER. I WOULD LIKE TO FILE 4 MAJOR CONCERNS REGARDING OUR VEHICLE. THE FIRST I HAVE BROUGHT…”NHTSA complaint 10292213 — filed 11/15/2009
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Electrical System complaints by year filed
Frequently asked questions
Does the 2004 Chevrolet Trailblazer EXT have electrical system problems?
Electrical System is the most-reported problem area on the 2004 Chevrolet Trailblazer EXT: 97 of 261 complaints on file (37.2%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2004 Chevrolet Trailblazer EXT have in total?
261 complaints were on file with NHTSA as of 07/12/2026. Across all categories, 6 involved a crash, 3 involved a fire, 13 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.
