AutoDefect IQ

2003 Gmc Sierra 2500 problems, complaints & recalls

Most-reported problem areas: Service Brakes, Hydraulic (31) · Service Brakes (27) · Electrical System (18)

🧭 Reliability snapshot

69 /100
⚠ Buy with caution

Compared against other Gmc Sierra 2500 model years — complaint volume vs the model's median year, recalls and severity. How we score →

🛣️ Complaints by mileage

<25k miles: 14 complaints <25k 25–50k miles: 28 complaints 25–50k 50–75k miles: 29 complaints 29 50–75k 75–100k miles: 20 complaints 75–100k 100–125k miles: 24 complaints 100–125k 125–150k miles: 10 complaints 125–150k 150k+ miles: 16 complaints 150k+

141 NHTSA complaints that reported an odometer reading.

160
Complaints
0
Recalls
203
Service bulletins
7
Crashes reported
4
Fires reported
0
Deaths

Safety recalls (0)

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

Service bulletins (203)

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 203 bulletins. Search all of them free at nhtsa.gov.

What owners report

2020-02-12 · Steering · 157,000 mi

“had injectors replaced under warranty at 50000 miles after noticing excess exhaust smoke on startup and also power steering hoses were leaking, again at 105000 miles they totally failed as i was bringing my wife home from hospital on i-15 in ca. up cajon pass and had to be towed to dealer, but gm dealer would not cover injectors under warranty as t…”

2019-04-01 · Electrical System · 180,000 mi

“blower motor resistor does not operate. upon inspection, harness and final stage are damaged due to excessive heat. i need to replace both components because i fear it will cause a fire. many posts on the same thing. why is there nothing done about this? my bmw had same issue but it was a recall on their cars. why is it not a recall on gm? is it b…”

2019-02-09 · Unknown Or Other · 2,000 mi

“the horn quits working and this creates a huge safety issue. online search shows this is a common problem and the dealer is unable to fix it.…”

2019-02-01 · Steering · 170,000 mi

“brakes are spongy not right power steering whines as do brakes…”

2018-08-13 · Structure:body · 120,000 mi

“tl* the contact owns a 2003 gmc sierra 2500 hd. the contact stated that the entire bottom of the truck bed was rusted, including the fuel tank. the vehicle was taken to a dealer (freedom chevrolet, 7052 w 48th st, fremont, mi 49412, 321-403-0016) where it was diagnosed that cheap metal was used on the vehicle. the vehicle was not repaired. the manu…”

2018-02-05 · Vehicle Speed Control · 217,000 mi

“complaint involves reduced power mode while driving. this has become a safety concern because of the rapid drop in speed while driving. it is unsafe trying to exit traffic lanes with no response from throttle pedal and appears to be a common problem with drive by wire vehicles produced by general motors. vehicle has been to dealership twice with no…”

2017-10-05 · Exterior Lighting

“gmc 2500 diesel hd sle sierra rearwheel drive instrument panay is inoperative. have to use iphone for speed and guess at gas effecting cruise control interior lights fan speed and cd player…”

2017-08-06 · Service Brakes · 233,000 mi

“brake failure upon slowing down at off ramp. avoided accident but had total brake failure. pulled into parking lot, checked fluid levels, were ok, tried brakes again and they were working. have not had a problem since.have heard reports of similar nature. some think it is a problem in the valving.hope you can find a cure.…”

2016-11-28 · Service Brakes · 350,000 mi

“i was driving on i 75 doing 70 mph i had to come to a sudden stop i applied brakes and there was no brakes., i ended up putting truck in the ditch to avoid serious accident. it ended both brake lines from master cylinder both blew up from corrosion these lines went to the abs module. i was some what injured. *tr…”

2016-10-04 · Service Brakes · 85,000 mi · 💥 crash

“abs comes on at low speed.. it increases stopping distance.. i have once rear ended a vehicle because of this. there was no damage to either vehicle.. also my abs light come on for a few seconds maybe two or three times a month..…”

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

Other Gmc Sierra 2500 years