🚗 AutoDefect IQ

2003 Gmc Sierra 1500 Hd problems, complaints & recalls

Most-reported problem areas: Service Brakes (3) · Service Brakes, Hydraulic (2) · Electrical System (2)

🧭 Reliability snapshot

92 /100
✓ Typical or better for this model

Compared against other Gmc Sierra 1500 Hd model years — complaint volume vs the model's median year, recalls and severity. How we score →

16
Complaints
0
Recalls
111
Service bulletins
0
Crashes reported
1
Fires reported
0
Deaths

Safety recalls (0)

No recalls on record for this model year (campaigns announced since 2010).

Service bulletins (111)

Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.

Unknown Or Other 2025-07-18 · PIP5601C · Service Bulletin/Repair Instructions

this pi communicates the requirement to provide a pico file to receive diagnostic assistance from tac.

Unknown Or Other 2025-03-28 · 23-NA-001 · Service Bulletin/Repair Instructions

this service bulletin provides information for dealers/technicians on onstar module 2g sunset information.

Engine 2024-12-18 · 03-06-01-023I · Service Bulletin/Repair Instructions

this service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.

Engine 2024-10-07 · 03-06-01-023H · Service Bulletin/Repair Instructions

this service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.

Unknown Or Other 2024-09-06 · PIT3271P · Service Bulletin/Repair Instructions

this preliminary information communication provides information to the technician about changing the tire and wheel size on vehicles. general motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. technician s

Electrical System 2024-08-26 · General Communication · Service Campaign

vehicle wide programming (vwp) is a new process to update software on gm vehicles. it provides the ability via a single selection within techline connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). the updating of modules is com

Showing the 6 most recent of 111 bulletins. Search all of them free at nhtsa.gov.

What owners report

2015-01-28 · Steering · 165,000 mi

“i am an ase master technician, i own an auto/truck repair facility. we are a state of oregon authorized deq repair facility, state of oregon das fleet repair facility, us army base vehicle repair shop and more. driving my truck to tacoma washington. i was towing a vehicle on in the right slow lane, and "reduced engine power" light came on. …”

2014-04-02 · Engine · 115,000 mi

“i experience an intermittent problem with my truck that flashes an error code "reduced engine power". this is tied to error code p1516. usually this problem occurs in colder parts of the year, and on a cold soaked engine, but it has happened other times as well. as soon as the error occurs the throttle shuts and leaves the vehicle with only iner…”

2014-02-22 · Electrical System · 150,000 mi · 🔥 fire

“a fire in the dash board in the middle of the night while the vehicle was parked in our back yard drive way. dash board area melted where the head unit and cigarette lighter is located. burned the head liner where a compartment was. the windshield cracked from the inside/outward. burned spots on the seats from the dash board burning. everything…”

2013-12-28 · Service Brakes · 84,000 mi

“brake line failure due to excessive corrosion of the line. after replacing the line myself, i performed a test run and yet another line failed due to the corrosion problem. the issue has been addressed by general motors in canada, but has not been addressed in the us. i feel that ten years and only 84,000 miles is not an acceptable timeframe/mil…”

2013-11-12 · Power Train · 120,000 mi

“tl* the contact owns a 2003 gmc sierra 1500 hd. the contact stated that while entering the driveway at various speeds, the vehicle failed to respond to deceleration attempts. the vehicle was not diagnosed or repaired. the manufacturer was contacted about the failure. the failure mileage was 120,000. …”

2013-08-14 · Service Brakes · 82,000 mi

“rusty brake lines failed upon application of brakes while towing a boat immediately causing complete loss of stopping ability. i had to have the lines replaced in a small shop due to location and lack of dealerships. vehicle is meticulously maintained and only has 82000 miles. *tr…”

2013-03-20 · Service Brakes · 123,500 mi

“extremely well cared for vehicle - always serviced at gm dealership, and recently safety state inspected. brake line ruptured under truck cab leading to rear wheels. complete loss of brake pressure. complete loss of brakes. inspection of brake line at the frame where rupture occurred reveals all lines leading to the rear of the vehicle are so c…”

2012-11-16 · Electrical System: Instrument Cluster/Panel · 102,000 mi

“i received a letter from general motors a few years ago about a speedometer defect. the letter extended the manufactures warranty to 7 years 80,000 miles on the gauge cluster due to defects. the letter said in bold underlined words not to bring the truck in if it is not experiencing any problems. it is now past the extended warranty and the spee…”

2011-09-08 · Engine And Engine Cooling:exhaust System:manifold/Header/Muffler/Tail Pipe · 99,500 mi

“tl* the contact owns a 2003 gmc sierra 1500 hd. the contact stated that the bolts on the manifold were fractured and caused leakage through the exhaust emission before going to the catalytic converter. the dealer was notified who advised replacing the bolts and manifold. the manufacturer was notified who stated there were no recalls and offered no …”

2011-08-01 · Service Brakes, Hydraulic · 34,000 mi

“tl* the contact owns a 2003 general motor sierra 1500 hd. the contact stated while driving 55 miles per hour, the vehicle would not come to a complete stop until the brakes were applied repeatedly. the contact noticed the vehicle was leaking break fluid which led to the discovery of a rusting brake line. the vehicle was not taken to the dealer, an…”

Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.

Other Gmc Sierra 1500 Hd years