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2003 GMC Sonoma Overview, Reviews, Ratings & Specs

Rating: 4.08
Based on 15 Owner Reviews
Cathleen V | March 31, 2025
The 2003 GMC Sonoma is a compact pickup truck, part of the second generation (1994-2004). It's known for its versatility and affordability. Available in regular, extended, and crew cab configurations, it offered various trims, including SL, SLE, and SLS. The pricing ranged from around $13,000 to $22,000 when new. Its popularity stemmed from its smaller size, making it easier to maneuver than full-size trucks, and its suitability for both work and everyday driving. The Sonoma’s relative simplicity also contributed to its appeal.
The Good

The 2003 GMC Sonoma offered a blend of practicality and rugged appeal. It provided decent performance from its engine options. Its simple design contributed to reasonable reliability. For practical buyers, it represented good value and adequate fuel efficiency. Emotionally, it offered the appeal of a truck in a manageable size, perfect for weekend projects or outdoor adventures.

The Bad

Common weaknesses in the 2003 GMC Sonoma include potential issues with the automatic transmission, particularly in higher-mileage vehicles. Rust can be a concern, especially in areas with road salt. Electrical problems, such as faulty sensors and wiring, are also reported. The interior plastics are prone to cracking and fading. Check for these issues before purchasing.

2003 GMC Sonoma: Quick Overview

  • Engine Options:
    • 2.2L I4: 120 hp
    • 4.3L V6: 190 hp (base) / 180 hp (later models)
  • Horsepower: 120 hp - 190 hp, depending on engine.
  • Fuel Economy (estimated):
    • 2.2L I4: 22 mpg city / 28 mpg highway
    • 4.3L V6: 16 mpg city / 22 mpg highway
  • 0-60 Times (estimated):
    • 2.2L I4: 11-12 seconds
    • 4.3L V6: 8-9 seconds
  • Towing Capacity: Varies depending on configuration and engine; up to 5,300 lbs with the 4.3L V6.
  • Trim Level Features:
    • SL: Base model; typically includes basic features like cloth upholstery, AM/FM radio, and manual windows and locks.
    • SLE: Adds features like air conditioning, upgraded audio system, power windows and locks, and cruise control.
    • SLS: Often includes alloy wheels, a sportier appearance package, and sometimes upgraded interior trim. May include features like fog lights and a sliding rear window.
  • Transmission: 5-speed manual or 4-speed automatic.
  • Drivetrain: Rear-wheel drive (RWD) or four-wheel drive (4WD).

2003 GMC Sonoma Specifications

Vehicle Information
Year 2003
Make GMC
Model Sonoma
Trim -
Style -
Type Sport Utility Vehicle Cab; Extended
Category Medium Truck
Manufacturing Details
Made In United States
Manufacturing City MORAINE
Dimensions
Doors 4-Door
Curb Weight -
Gross Vehicle Weight Rating -
Overall Height -
Overall Length -
Overall Width -
Wheelbase Length -
Standard Seating -
Engine & Performance
Engine LL8
Engine Size 4.3L
Engine Cylinders 6
Transmission 4-Speed Automatic
Transmission Type Automatic
Transmission Speeds 4-Speed
Drivetrain Rear-Wheel Drive
Additional Features
Anti-Brake System -
Steering Type -
Pricing
Manufacturer Suggested Retail Price (MSRP) -
Invoice Price -
Delivery Charges -

Vehicle History Report

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Listings
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Market Price
Analysis

What Problems Does the 2003 GMC Sonoma Have?

Frequently reported problems for the 2003 GMC Sonoma include issues with the automatic transmission, particularly slipping or harsh shifting, often requiring costly repairs or replacement. Rust is another significant concern, especially in areas where road salt is used, affecting the frame, body panels, and brake lines. Electrical issues, such as malfunctioning sensors (ABS, crankshaft position) and wiring problems, are also common. The climate control system can suffer from failures, including issues with the blower motor and air conditioning compressor.
Recalls for the 2003 GMC Sonoma were issued for issues related to the fuel system, such as fuel leaks. These leaks posed a fire hazard. Some vehicles were also recalled for potential issues with the brake system. Owners should check the vehicle's VIN with the NHTSA to determine if any recalls apply. Long-term reliability concerns center around the longevity of the automatic transmission and the potential for rust. The interior plastic components are also known to degrade over time, leading to cracks and fading. Earlier model years within this generation (1994-1997) had more reported issues with the central port injection (CPI) system on the 4.3L V6 engine, but this was largely addressed in later years, including 2003. Regular maintenance, including fluid changes and rust prevention, can help mitigate some of these concerns.

How long will the 2003 GMC Sonoma last?

With good maintenance, a 2003 GMC Sonoma can reach 200,000 miles or more. Average mileage at this age varies significantly depending on usage and care. Many well-maintained Sonomas from this year are still on the road, indicating decent long-term durability. However, weaknesses include rust, which can shorten lifespan significantly, and potential transmission issues. Proper maintenance, including regular fluid changes, addressing rust promptly, and careful driving habits, are essential to maximize longevity. Neglecting these areas can lead to costly repairs and a shorter lifespan.

What Technology & Safety Features are Included?

The 2003 GMC Sonoma offered relatively basic technology for its time. Standard entertainment features typically included an AM/FM radio, with optional upgrades to include a cassette player or CD player. There were no advanced driver-assistance systems available.
Safety features included standard front airbags and antilock brakes (ABS) were often available as an option, improving braking performance. Some models had daytime running lights. Optional features included things like power windows, power locks, and cruise control, representing the extent of its "tech" offerings.
Crash test ratings from the NHTSA (National Highway Traffic Safety Administration) for the 2003 GMC Sonoma are available. The Sonoma generally received average scores for frontal crash protection. Side-impact crash tests were not commonly performed on vehicles of this class during that era, so data may be limited. The IIHS (Insurance Institute for Highway Safety) may have conducted some tests, and it’s worth researching their archives for available information.
Compared to modern vehicles, the 2003 GMC Sonoma lacked advanced safety and entertainment tech. Its safety relied mainly on basic features like airbags and optional ABS.

What Colors Options are Available?

Exterior Colors
Summit White
Onyx Black
Victory Red
Dark Blue Metallic
Silver Metallic
Pewter Metallic
Dark Green Metallic
Interior Colors
Light Pewter
Graphite

2003 GMC Sonoma Prices and Market Value

When new, the 2003 GMC Sonoma ranged from approximately $13,000 to $22,000 depending on the trim level, cab configuration, and options. Current used market prices typically range from $2,000 to $8,000, but can vary significantly based on condition, mileage, and location. Depreciation has been substantial, as expected for a vehicle of this age. Factors affecting resale value include the vehicle's overall condition (especially rust), mileage, engine type (V6 models generally command higher prices), and whether it's a 4WD model. Well-maintained examples with lower mileage and desirable options hold their value better.

2003 GMC Sonoma Cost of Ownership

Insurance costs for a 2003 GMC Sonoma are generally low due to its age and value. Fuel costs are moderate, especially with the I4 engine, but can be higher with the V6. Maintenance is relatively affordable, as parts are readily available and repairs are generally straightforward. However, unexpected repairs, particularly to the transmission or due to rust, can increase long-term ownership costs. Overall, the 2003 GMC Sonoma can be an economical vehicle to own if properly maintained, but neglecting it can lead to higher costs.

2003 GMC Sonoma Fuel Efficiency

Fuel Type Gasoline
Fuel Capacity -
City Mileage -
Highway Mileage -

2003 GMC Sonoma Safety Rating

NHTSA
Overall Rating Not Tested
Overall Frontal Star Rating Not Tested
Side Overall Star Rating Not Tested
Overall Rollover Star Rating Not Tested
Combined Front Seat Rating Not Tested
Combined Rear Seat Rating Not Tested
Overall Frontal Star Rating Not Tested
Frontal Barrier Star Ratings Not Tested
Side Barrier Star Ratings Not Tested
Rollover Resistance Star Rating Not Tested

2003 GMC Sonoma Recalls & Defects

Equipment:other:labels
Recall date 2004-03-18
Recall no. 04v132000
Source NHTSA
Summary Certain Pickup Trucks and Sport Utility Vehicles Fail TO Comply With THE Requirements OF Federal Motor Vehicle Safety Standard NO. 208, "occupant Crash Protection."
Consequence Some OF These Vehicles Include Incorrect Statements ON ONE OF THE AIR BAG Warning Labels.
Remedy Owners Will BE Provided With Correct Labels and Installation Instructions. Owner Notification Began ON June 4, 2004. Owners Should Contact Chevrolet AT 1-800-630-2438 or GMC AT 1-866-996-9463.
Notes GM Recall NO. 04021.customers CAN Also Contact THE National Highway Traffic Safety Administration's Auto Safety Hotline AT 1-888-Dash-2-dot (1-888-327-4236).

2003 GMC Sonoma Insurance

Insurance for a 2003 GMC Sonoma is moderately priced, reflecting its status as a Sport Utility Vehicle Cab; Extended with strong safety ratings and
reasonable repair costs.

How Does the 2003 GMC Sonoma Compare to Other Sport Utility Vehicle Cab; Extended?

The 2003 GMC Sonoma competed with the Ford Ranger, Chevrolet S-10 (its corporate twin), Toyota Tacoma, and Nissan Frontier. In terms of performance, the Sonoma's 4.3L V6 was comparable to the Ranger's V6 options but lagged behind the Tacoma's more powerful offerings. The Tacoma generally had a better reputation for reliability, while the Ranger offered a slightly wider range of configurations. The Nissan Frontier, while newer in design at the time, had similar reliability concerns to the Sonoma.
In terms of features, the Sonoma offered a fairly basic experience compared to the Tacoma, which was often equipped with more modern amenities even in older models. The S-10, being mechanically identical to the Sonoma, offered similar performance and features at a potentially lower price, making it a worthwhile alternative if badge loyalty isn't a factor. The Ranger occupied a middle ground, with a good balance of features and price.
For reliability, the Toyota Tacoma is arguably the better choice long-term. While possibly more expensive upfront, its durability and lower likelihood of major repairs make it a strong contender. The Ford Ranger is a similar alternative, offering a good balance of price and features, though long-term reliability can vary. If budget is a primary concern and you’re willing to accept the potential for more maintenance, the Sonoma (or its twin, the S-10) can be a viable option, provided it's been well-maintained.

Final Verdict: Is the 2003 GMC Sonoma a Good Sport Utility Vehicle Cab; Extended?

The 2003 GMC Sonoma is ideal for budget-conscious buyers seeking a simple, compact pickup for light-duty tasks. It's worth considering if you need a truck for occasional hauling, DIY projects, or as a secondary vehicle. However, it's only worth buying used, given its age. Look for models with the 4.3L V6 for better performance, and prioritize examples with minimal rust and documented maintenance records. Avoid neglected or abused vehicles, as potential repairs can quickly outweigh the truck's value. Compared to newer options, the Sonoma lacks modern safety features and conveniences, so manage your expectations accordingly. A well-maintained Sonoma can be a practical and affordable choice, but careful inspection is crucial.

2003 GMC Sonoma Owner Reviews

4.08
Consumer Rating, Based on 15 Consumer Reviews
Overall rating
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ama0570 on January 22, 2019

Very reliable vehicle

This car is roomy. It's dependable and comfortable. It's a great travel car. I love this model car. I recommend this car to anyone, it's simply reliable.

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RMDC on August 27, 2017

Good rugged truck. Lots of power with the 4.3 V6.

Styling is great. I have the Zr-2 model and it has a healthy off-road look. I drive it off road sometimes and hit handles very well. The engine is very good, very smooth, and very durable. The 4 wheel disc brakes are super. Gas mileage is not so good, however. It gets 17-18 on the highway and less in the city or if there is a load in the back. Gas mileage is not so good.

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Sehome on April 14, 2017

Problem with ergonomics

I just bought this 2003 for its low miles, to use for highway. Pass door was crunched and mirror post damaged in a parking lot incident, which lowered the price . Electric mirror still works. This rig must have the luxe package, with the power windows etc. My issue: The "plane" for the brake and gas pedals. The gas pedal is 3 inches further away than the brake. On my 2002 Tacoma, the difference is only 1.5 inches. I have to stretch my leg more than I like, for the gas, plus the pedal is very stiff (maybe some WD40 will fix that). Moving the seat more forward does not work well, just pushes the steering wheel into me. I am male, 5'10" , 140 lbs. We are going to experiment with bonding a 3/4 inch piece of wood to the gas pedal! After the first 500 miles, this has become a really annoying issue, more than it should be, this almost out-of-reach gas pedal - we live in mountains, lotsa hills. 4x4 I have not really used yet, I like lever-on-floor better than electric, but minor detail perhaps. Instead of two tiny seats in the "extra cab" area, there is just one, in which a passenger sits astride, more room to stretch out. Cheapskate gmc would not even include a CLOCK which surprised me, they could buy for $3 about. Once we get the seat/gas pedal ratio problem solved, the little truck should be a handy rig for me.

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Regalx on May 7, 2012

Great Truck for the Money

Recently purchased a used 2003 GMC Sonoma with the ZR-2 package. This review is based on when the truck was made and not comparing it to today's trucks since it is 9 years old and things have changed a lot in 9 years. Currently the truck has 108,000 miles and runs like a champ. It gets driven 300 miles a week commuting to work and my car is driven on the weekends unless truck is needed for work around the the house. Like all older GM vehicles, as long as they are maintained and taken care of, they will run forever. My Sonoma is no different. Runs great, still putting out solid power from the 4.3 V6, and gets decent mileage for a truck at 17MPG. A K&N Cold Air Intake is installed and does provide smoother running and slight bump in power. There are the normal cracks, creaks, and rattles that happen over time since the interior is really just cheap plastic. Besides that it rides well with the larger 31" tires and is great off road. Normal repairs such as bushings, tie rods, UV joints have been done. Ride can be bumpy at times but it is a truck and rides as expected. Besides the cheap interior build quality, this is another example of a quality GM truck that when taken care of, will run well and will be reliable for many more miles as I expect to reach at least 150,000 miles with my ZR-2. This is my second S-10 as previous truck was a 1992 with the Tahoe package. These trucks are priced well at the time of this review and are cheap and easy to maintain. The ZR-2 package also adds a nice unique look to the truck.

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Vicky on May 7, 2012

A + Best Light Pick Up Truck EVER

known to go 200K+ mil mine is allready at 160K on original engine & trans. Can't beat them best truck ever, would recommend to all friends & family

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Mad lady on March 28, 2012

I like this truck more than any I have owned

I love my sonoma,it is everything I needed.4 wheel drive automatic , full size back seat,covered bed.It is a real sharp looking pick-up.

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Speedskies on October 16, 2011

wowza

this little thing is a tank. Went camping and used it to toe our family boat (18ft silverline) on a 5 hour drive up to northern BC (Kamploops to be exact) and it did it easily. i was passing other trucks like nothing. as this is my first vehicle and i am in my 20's i have put in a CAI and did a muffler swap and got it at 200HP from 190HP. parts are cheap. most expensive thing i had to do to it was change the distributor. other than that just the usual breaks, oil, etc. its a 2wd and it is surprisingly good through the BC back roads, sloshing thru puddles and mud. definitely surprised some of the bigger truck owners. this thing is a tank in the snow haven't gotten stuck once and have had it for about 4 years. and its a GMC so you know it wont be Found On Road Dead.

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bminett on September 18, 2010

Pretty good little truck

This is a good little pickup. can hold a nice size payload of about 1000 lbs with no problems. The power train barely notices a load this heavy. The only thing to go wrong is the radiator went at about 70k miles. Overall it has been a good vehicle no major complaints

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GMC GUY on June 9, 2010

Can't beat it for the price!

This was the least expensive new small truck I could find! After 150,000 miles without ANY real problems, I know you can't beat it for reliability. It is easy to drive and park. I drive 2 hours a day, mostly highway and it has been dependable in all driving conditions. You can't expect a compact, economy truck to give you the same power and comfort you would get from larger, more expensive vehicles, but this little guy does what it was made to do, and it does it cheap! The small truck has some advantages over small cars, because it has a full frame. I have hauled with it, and it will handle a half-ton load as it should. I would not recommend putting more than that in it, because it IS a light duty truck. Mine is the long box version, and with the help of some 2X6's you can actually haul 4X8 material with the gate down. It will handle a yard of mulch just fine. It's great for yard work, because it's light and small, and it's easy to load and unload, because it is lower to the ground than a full-size. This has been a great truck for the money!

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Former GMC Sonoma Owner on May 14, 2010

Wouldn't buy another

I owned a 2003 GMC Sonoma Flareside and I would advise against buying one. There was a problem with the front end shimming and as many times as I took it back to the dealer to be repaired it could not be fixed. The third door was repaired at least four times and that was never right either. Mechanically it did run well.

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Cathleen V

Cathleen is an exceptional freelance writer covering hot topics in the automotive world from a gearhead's perspective. Her articles delve into various aspects of automotive technology and history, offering readers detailed insights into engine performance, reliability, and maintenance. Through her engaging and informative writing, Cathleen provides valuable information to automotive enthusiasts and consumers alike, helping them make informed decisions about vehicle maintenance and purchases.