Built from official NHTSA complaint and recall data · data through 07/14/2026
High complaint levelIts most-reported problem — Service Brakes — runs 4.9× the fleet median for that category across the 2075 model-years tracked on this site.
143Complaints
4Recalls
4Crashes
4Fires
5Injured
1Deaths
Source: U.S. NHTSA complaint & recall data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
Is this problem acknowledged?
The most-reported problem — Service Brakes (23.1% of complaints) — is covered by 1 NHTSA recall campaign.
Service Brakes complaints here are 4.9× the median for that category across the 2075 model-years tracked on this site.
3 of the 6 most-reported categories on this page are backed by a recall or open investigation; the other 3 rest on owner reports alone.
Complaint category
Reports
Official status
Reference
Service Brakes
33 · 23.1%
Recalled
Recall 06E050000
Electrical System: Instrument Cluster/panel
27 · 18.9%
No official action
—
Electrical System
20 · 14%
No official action
—
Service Brakes, Hydraulic
16 · 11.2%
Recalled
Recall 06E050000
Engine
9 · 6.3%
No official action
—
Fuel System, Diesel
5 · 3.5%
Recalled
Recall 06E043000
Recalled = an NHTSA safety recall covers this category, so a free repair exists. Under investigation = NHTSA has an open probe but no recall yet. Investigation closed = NHTSA examined it and closed the probe — this is not a defect finding; where a closed probe led to a recall we name the campaign. Not available = recall or investigation data could not be confirmed for this vehicle — it is not a “no”. Categories are matched by NHTSA's top-level component. Check your VIN at nhtsa.gov/recalls.
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP3 · 2.1%
POWER TRAIN:AUTOMATIC TRANSMISSION3 · 2.1%
TIRES3 · 2.1%
Percentages are the share of the 143 complaints citing each component; one complaint can cite several components. “Unspecified / other” is NHTSA’s own catch-all category — we show it rather than hide it.
IN THE EVENT OF A VEHICLE CRASH, THE WHEELCHAIR MAY NOT BE ADEQUATELY SECURED POSSIBLY RESULTING IN INJURIES TO A WHEELCHAIR OCCUPANT. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
THIS CONDITION MAY CAUSE AN INADEQUATE SEAL AT THE CONNECTION, POTENTIALLY LEADING TO A FUEL LEAK. IN THE PRESENCE OF AN IGNITION SOURCE, A FIRE COULD OCCUR. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
Park itPark outside Specimen badges — shown on a recall card only when NHTSA sets the flag. None of the campaigns above carries either flag. Always check your own vehicle by VIN at nhtsa.gov/recalls.
What owners report
“ALL THE FLUID LINES CORRODED TO THE POINT WHERE THE VEHICLE WAS DANGEROUS TO DRIVE WITH ONLY 35000 ORIGINAL MILES ON IT.”NHTSA complaint 10583638 — filed 04/19/2014 · SERVICE BRAKES
“THE CONTACT OWNS A 2004 GMC SIERRA 2500. THE CONTACT STATED THAT THE BRAKE FAILED TO ENGAGE WHILE ATTEMPTING TO APPLY THE BRAKE PEDAL WHILE…”NHTSA complaint 10562816 — filed 02/04/2014 · SERVICE BRAKES
“WHEN ATTEMPTING TO STOP, THE TRUCK BEGAN TO STOP AND THEN ALL OF A SUDDEN THE BRAKE PEDAL WENT TO THE FLOOR. AT THIS POINT…”NHTSA complaint 10543984 — filed 09/17/2013 · SERVICE BRAKES
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Complaint trend by year filed
Frequently asked questions
What are the most common problems with the 2004 GMC Sierra 2500?
Service brakes issues are the most-reported category, cited in 33 of 143 NHTSA complaints (23.1%), followed by electrical system: instrument cluster/panel (27), electrical system (20), service brakes, hydraulic (16). Complaints are unverified owner reports.
How many complaints does the 2004 GMC Sierra 2500 have?
143 complaints were on file with NHTSA as of 07/14/2026. Of those, 4 involved a crash, 4 involved a fire, and 5 reported injuries. 1 deaths were reported.
Does the 2004 GMC Sierra 2500 have any recalls?
Yes — 4 NHTSA safety recall campaigns, including campaign 04V562000. Recall repairs are free at authorized dealers. Check your specific vehicle by VIN at nhtsa.gov/recalls.
Has NHTSA acted on the 2004 GMC Sierra 2500's reported problems?
3 of the 6 most-reported complaint categories on this page are backed by an NHTSA safety recall or open investigation; the rest are unverified owner reports. A recall means a free repair is available at authorized dealers.
Is a complaint proof of a defect?
No. Complaints are reports submitted by consumers to NHTSA. NHTSA does not verify individual complaints, and a complaint is not proof that a defect exists.
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.
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