1999 GMC Sierra 2500 Problems
- Complaints
- 36filed with NHTSA
- Median mileage
- 100,000miles, 22 complaints with mileage
- Recalls
- 0campaigns on record
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
- NHTSA crash rating
- —overall rating starts with 2011 models
- EPA fuel economy
- 15 mpgcombined, 5.3L 8-cyl RWD · 14 city / 18 hwy
Sources: NHTSA records for the 1999 GMC Sierra 2500 (complaints, recalls, investigations), EPA fuel economy. Report an error
NHTSA recorded 36 consumer complaints for the 1999 GMC Sierra 2500. The part named most often is brakes, with 22 complaints (61% of the total), followed by suspension (3) and tires (3). 22 of the complaints include a mileage, and 14% of those were filed for vehicles with under 50,000 miles; the median is 100,000 miles. Of all complaints, 3 involved a crash, 1 a fire, 5 an injury, 1 a death, according to the filers. NHTSA lists 0 recall campaigns and 22 technical service bulletins for this model year. Brakes complaints overlap with 4 technical service bulletins filed under the same part. Suspension complaints overlap with 1 technical service bulletin filed under the same part.
Not compared (before 2008). Model years 2008–2023 of the same vehicle that have at least 25 complaints are compared, and a model needs at least 3 of them.
Which parts are reported most
Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.
- Brakes22 61%
- Suspension3 8.3%
- Tires3 8.3%
- Electrical system2 5.6%
- Exterior lighting2 5.6%
- Fuel system2 5.6%
- Steering2 5.6%
- Air bags1 2.8%
- Body and structure1 2.8%
Also reported: Transmission and drivetrain (1), Vehicle speed control (1).
Example complaints
Brakes: “2 years ago I had all of the brake lines replaced because of failure due to rust at a cost of $1000.00 I believe the cause was poor metal in the brake lines and the way the lines are attached to the body & frame help to cause the problem.”
NHTSA complaint #11052369, filed 2017-12, 170,000 milesSuspension: “I was making a right turn out of a parking lot and heard a load clunk. When I got home I was looking for the cause of the banging and found that the rear leaf spring shackle had rusted so bad it broke in half.”
NHTSA complaint #10512624, filed 2013-05, 134,000 milesTires: “The contact owns a 1999 Gmc sierra with fts westlake tires. While driving 40 MPH the vehicle would shake and vibrate. The service mgr stated that the tires were out of specification and they would be unable resolve the tire issues. The current and failure mileages were 102,000.”
NHTSA complaint #10197987, filed 2007-07, 102,000 milesElectrical system: “1999 Gmc k2500 fuel gauge goes down to show half a tank and stops there. Shows erratic readings. Vehicle can run out of gas and appear to have aprox. Half a tank.”
NHTSA complaint #10239883, filed 2008-08, 100,000 milesMileage when problems were reported
14% of the 22 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 71,973 and 170,000 miles.
Complaints by year filed
Trend: stable. Complaints filed in the last 3 full calendar years are within 25% of the 3 years before.
Fuel economy and running cost
EPA ratings for each 1999 GMC Sierra 2500 version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).
| Version | Engine | Transmission | City | Hwy | Comb. | Fuel / yr |
|---|---|---|---|---|---|---|
| Sierra 2500 2WD | 5.3L 8-cyl | 4-speed automatic | 14 | 18 | 15 | $4,450 |
| Sierra 2500 2WD | 6.0L 8-cyl | 4-speed automatic | 11 | 15 | 12 | $5,600 |
Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.
Recalls and investigations
NHTSA lists no recall campaigns for the 1999 GMC Sierra 2500 in the data used here. A recall can apply to some vehicles of a model year and not others, so check a specific vehicle by VIN at nhtsa.gov/recalls.
Technical service bulletins
TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 22 on record; the latest 10 are shown.
- 10242252Aug 18, 2023Brakes. This technical bulletin provides information and a solution to a condition of Brake Pedal Moves or Self Applies at Full Turns.
- 10232287Feb 21, 2023Equipment. This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
- 10226382Oct 18, 2022Brakes. This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.
- 10209734Mar 22, 2022Equipment, Fuel system. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- 10168206Oct 31, 2019Suspension. This technical bulletin provides a procedure to apply grease to the leaf springs to correct a condition of a squeak noise from the metals making contact.
- 10166445Jul 26, 2019Equipment. This SKU is a Pitman Arm. The customer communication requested return of unsold inventory to inspect for the spline size. If the spline size is incorrect it will not have a tight fit with the mating…
- 10165331Jul 3, 2019Equipment, Fuel system. This SKU is a Preformed Fuel Line. The customer communication requested return of unsold inventory to inspect for damage to the braided hose and crimps. Damaged braided hoses and poor crimps can…
- 10162149Jun 24, 2019Brakes. This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.
- 10165332Jun 14, 2019Equipment. This SKU is an Air Door Actuator. The customer communication requested return of unsold inventory to inspect for incorrect UPC. Incorrect UPC could lead to a discrepency of inventory at the store…
- 10154601Dec 17, 2018Body and structure. This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables. Technician should not replace any parts for this…
Other model years of the GMC Sierra 2500
| Year | Complaints | Median mi | Recalls | Crash ★ | MPG | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|---|
| 2026 | 13 | 9,000 | 1 | — | — | — | Too new |
| 2025 | 28 | 1,300 | 1 | — | — | Too new to compare | Too new |
| 2024 | 108 | 9,904 | 4 | — | — | Too new to compare | Too new |
| 2023 | 33 | 34,000 | 1 | — | — | 40 · Typical | Too new |
| 2022 | 45 | 15,167 | 3 | — | — | 65 · More | Rising |
| 2021 | 52 | 53,000 | 6 | — | — | 69 · More | Rising |
| 2020 | 80 | 46,900 | 9 | — | — | 94 · More | Rising |
| 2019 | 32 | 28,729 | 7 | 4 | — | 50 · Typical | Rising |
| 2018 | 35 | 10,000 | 5 | 4 | — | 52 · Typical | Falling |
| 2017 | 37 | 22,060 | 6 | 4 | — | 53 · Typical | Falling |
| 2016 | 59 | 29,500 | 6 | 4 | — | 64 · Typical | Stable |
| 2015 | 89 | 37,023 | 6 | 3–4 | — | 93 · More | Falling |
| 2014 | 30 | 39,000 | 2 | 2–4 | — | 10 · Fewer | Falling |
| 2013 | 46 | 60,000 | 3 | 2–4 | — | 0 · Fewer | Stable |
| 2012 | 31 | 68,500 | 3 | 3–4 | — | 2 · Fewer | Rising |
| 2011 | 63 | 55,400 | 4 | — | — | 34 · Fewer | Falling |
| 2010 | 10 | 77,000 | 5 | — | — | — | Not enough data |
| 2009 | 31 | 39,600 | 5 | — | — | 39 · Typical | Falling |
| 2008 | 63 | 67,500 | 3 | — | — | 17 · Fewer | Falling |
| 2007 | 83 | 70,000 | 3 | — | — | Not compared (before 2008) | Rising |
| 2006 | 66 | 43,500 | 1 | — | — | Not compared (before 2008) | Falling |
| 2005 | 115 | 60,000 | 1 | — | 11 | Not compared (before 2008) | Falling |
| 2004 | 143 | 60,000 | 1 | — | — | Not compared (before 2008) | Falling |
| 2003 | 160 | 73,000 | 0 | — | — | Not compared (before 2008) | Falling |
| 2002 | 134 | 85,500 | 1 | — | — | Not compared (before 2008) | Rising |
| 2001 | 134 | 65,000 | 2 | — | — | Not compared (before 2008) | Stable |
| 2000 | 48 | 91,000 | 1 | — | 15 | Not compared (before 2008) | Stable |
| 1999 | 36 | 100,000 | 0 | — | 15 | Not compared (before 2008) | Stable |
| 1998 | 15 | 47,000 | 1 | — | 15 | — | Stable |
| 1997 | 14 | 100,000 | 2 | — | 15 | — | Not enough data |
All GMC Sierra 2500 model years · Best and worst years by complaints
Frequently asked questions
How many NHTSA complaints does the 1999 GMC Sierra 2500 have?
NHTSA recorded 36 consumer complaints for the 1999 GMC Sierra 2500 as of Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
What part of the 1999 GMC Sierra 2500 is reported most often?
Brakes is named most often, in 22 complaints (61% of the total), followed by suspension with 3.
Has the 1999 GMC Sierra 2500 been recalled?
NHTSA lists no recall campaigns for this model year in the data used here. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.
What gas mileage does the 1999 GMC Sierra 2500 get?
The EPA rates the 1999 GMC Sierra 2500 (Sierra 2500 2WD, 5.3L 8-cyl) at 15 mpg combined, 14 city and 18 highway, with an estimated annual fuel cost of $4,450 at 15,000 miles a year. Other engine and drive versions are rated differently.
At what mileage are problems with the 1999 GMC Sierra 2500 reported?
Among the 22 complaints that include a mileage, the median is 100,000 miles and the middle half falls between 71,973 and 170,000 miles; 14% were filed for vehicles with under 50,000 miles.
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Fuel economy is from the EPA and DOE (fueleconomy.gov).
Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.