2003 Chevrolet Suburban 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 301 complaints citing each category; one complaint can cite several. Full breakdown on the 2003 Chevrolet Suburban overview page.
What owners report
“THE 2003 CHEVY SUBURBAN HAS AN INTERMITTENT, RECURRING ISSUE WITH THE CLUSTER THAT CAUSES IT TO SHORT OUT. THERE ARE MANY EXAMPLES OF THIS PROBLEM…”NHTSA complaint 10186415 — filed 03/28/2007
“: THE CONTACT STATED THE VEHICLE HAD KEYLESS ENTRY AND THE POWER SUPPLY FAILED, WHICH RESULTED IN NO WAY TO GET IN OR OUT OF…”NHTSA complaint 10167515 — filed 09/06/2006
“: THE CONTACT STATED THE VEHICLE LOOSES POWER INTERMITTENTLY. THE FIRST TIME THIS OCCURRED, THE DEALERSHIP DETERMINED A RODENT HAD CHEWED THROUGH THE WIRES. THE…”NHTSA complaint 10148863 — filed 01/27/2006
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 Suburban have electrical system problems?
Electrical System is the #3 most-reported problem area on the 2003 Chevrolet Suburban: 33 of 301 complaints on file (11%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2003 Chevrolet Suburban have in total?
301 complaints were on file with NHTSA as of 07/12/2026. Across all categories, 23 involved a crash, 4 involved a fire, 30 reported injuries, and 1 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.
