2003 GMC Sierra 1500 Service Brakes, Hydraulic Problems
NHTSA component category: SERVICE BRAKES, HYDRAULIC · 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 service brakes, hydraulic ranks on this vehicle
Share of the 180 complaints citing each category; one complaint can cite several. Full breakdown on the 2003 GMC Sierra 1500 overview page.
What owners report
“MY 2003 GMC SIERRA 1500 SLE HAS CORRODED BRAKE, TRANSMISSION AND FUEL LINES. A CERTIFIED MECHANIC STATED THAT THEY ALL NEED REPLACED OR BREAKAGE AND…”NHTSA complaint 10447946 — filed 02/14/2012
“I TOOK MY 2003 GMC SIERRA IN FOR AN INSPECTION, INSPECTION FAILED DUE TO CORRODED BRAKE LINES. WAS INFORMED THAT ALL BRAKE LINES NEED TO…”NHTSA complaint 10436465 — filed 11/19/2011
“BRAKES BLEW OUT COMING DOWN A VERY STEEP HILL. I WAS LUCKY BECAUSE I HAD A TOYOTA IN FONT OF ME SLOWING DOWN BECAUSE OF…”NHTSA complaint 10436251 — filed 11/17/2011
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Service Brakes, Hydraulic complaints by year filed
Frequently asked questions
Does the 2003 GMC Sierra 1500 have service brakes, hydraulic problems?
Service Brakes, Hydraulic is the #3 most-reported problem area on the 2003 GMC Sierra 1500: 32 of 180 complaints on file (17.8%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2003 GMC Sierra 1500 have in total?
180 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 13 involved a crash, 4 involved a fire, 9 reported injuries, and none reported deaths.
What does NHTSA's service brakes, hydraulic category include?
NHTSA assigns each complaint to standard component categories; this page reports the SERVICE BRAKES, HYDRAULIC category exactly as NHTSA defines and records it.
