2004 Chevrolet Impala Electrical System Problems

NHTSA component category: ELECTRICAL SYSTEM · data through 07/14/2026

407Electrical System complaints

38%Of all 1,072 complaints

#1Most-reported category

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

ELECTRICAL SYSTEM407 · 38%

ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL252 · 23.5%

ENGINE71 · 6.6%

EXTERIOR LIGHTING69 · 6.4%

STEERING51 · 4.8%

Share of the 1,072 complaints citing each category; one complaint can cite several. Full breakdown on the 2004 Chevrolet Impala overview page.

What owners report

“2004 IMPALA HEADLIGHTS GO OUT WHILE DRIVING. THE DEALER REPLACED THE BODY CONTROL MODULE. THE CONSUMER REQUESTED REIMBURSEMENT FROM THE MANUFACTURER.”NHTSA complaint 10145367 — filed 12/06/2005

Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.

Electrical System complaints by year filed

Frequently asked questions

Does the 2004 Chevrolet Impala have electrical system problems?

Electrical System is the most-reported problem area on the 2004 Chevrolet Impala: 407 of 1,072 complaints on file (38%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 2004 Chevrolet Impala have in total?

1,072 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 44 involved a crash, 21 involved a fire, 42 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.

About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/14/2026.