The 2003 Isuzu Ascender, launched as part of Isuzu's foray into the mid-size SUV market, is a rebadged GMC Envoy/Chevrolet TrailBlazer. It features a body-on-frame construction, offering a traditional SUV experience. The Ascender was available from 2003 to 2008. Key trims included the base model, LS, and Limited. New pricing ranged from approximately $28,000 to $38,000. Its ruggedness and available third-row seating made it a popular choice for families seeking a capable SUV without the hefty price tag of some competitors.
The Good
The 2003 Isuzu Ascender offered decent performance with its available V8 engine, appealing to those needing power. Its comfortable ride and spacious interior provided a practical choice for families. The rugged design and off-road capability cater to buyers seeking adventure. As a used vehicle, its affordability presents excellent value, particularly for budget-conscious buyers seeking a capable SUV.
The Bad
The 2003 Isuzu Ascender had some known weaknesses. Fuel economy was not its strong suit. Issues with the four-wheel-drive system, particularly the encoder motor, are common. Also, be aware of potential problems with the instrument cluster and climate control system. Rust can also be a concern, especially in areas with harsh winters. Regular maintenance is key to mitigating these issues.
2003 Isuzu Ascender: Quick Overview
- Engine Options:
- 4.2L Inline-6: Standard on most models.
- 5.3L V8: Optional on higher trims (Limited).
- Horsepower:
- 4.2L Inline-6: Approximately 270 hp.
- 5.3L V8: Approximately 290 hp.
- Fuel Economy (Estimated):
- 4.2L Inline-6: 15-16 mpg city / 21-22 mpg highway.
- 5.3L V8: 14-15 mpg city / 19-20 mpg highway.
- 0-60 Times (Estimated):
- 4.2L Inline-6: Around 8.5-9.0 seconds.
- 5.3L V8: Around 7.5-8.0 seconds.
- Towing Capacity:
- Up to 6,200 lbs (V8 models properly equipped). Inline-6 models have slightly lower towing capacity.
- Trim Level Features:
- Base: Cloth upholstery, air conditioning, AM/FM radio, power windows and locks.
- LS: Adds features like alloy wheels, upgraded audio system, and sometimes, optional third-row seating.
- Limited: Leather upholstery, premium audio system, automatic climate control, power-adjustable seats, and often the V8 engine. May include features like a sunroof and heated seats.
2003 Isuzu Ascender Specifications
Vehicle Information
| Year | 2003 |
| Make | Isuzu |
| Model | Ascender |
| Trim | - |
| Style | - |
| Type | Wagon |
| Category | Minivan Medium Truck |
Manufacturing Details
| Made In | United States |
| Manufacturing City | MORAINE |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | - |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | LM7 Iron |
| Engine Size | 5.3L |
| Engine Cylinders | 8 |
| Transmission | - |
| Transmission Type | - |
| Transmission Speeds | - |
| Drivetrain | Rear-Wheel Drive |
Additional Features
| Anti-Brake System | - |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | - |
| Invoice Price | - |
| Delivery Charges | - |
Vehicle History Report
Vehicle
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Specifications
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Market Price
Analysis
Analysis
What Problems Does the 2003 Isuzu Ascender Have?
The 2003 Isuzu Ascender, like its GM counterparts, has some frequently reported problems. A common issue is the failure of the instrument cluster, with gauges malfunctioning or becoming inaccurate. The climate control system, particularly the blend door actuator, can also fail, leading to inconsistent temperature control. Issues with the four-wheel-drive system are often reported, specifically problems with the encoder motor, which can prevent the system from engaging or disengaging properly.
Recalls for the 2003 Ascender focused on issues such as potential fuel leakage from the fuel tank vent valve and problems with the driver's side airbag inflator. These recalls should have been addressed by previous owners, but checking the vehicle's VIN for outstanding recalls is crucial.
Long-term reliability can be a concern due to the age of the vehicle. Rust is a significant issue, especially in areas with road salt. Suspension components, such as ball joints and control arm bushings, can wear out over time, leading to handling issues. The engine and transmission are generally reliable if properly maintained, but neglecting maintenance can lead to costly repairs. Electrical issues, like those related to the body control module, can also arise. Thorough inspection and a pre-purchase inspection by a trusted mechanic are highly recommended.
Recalls for the 2003 Ascender focused on issues such as potential fuel leakage from the fuel tank vent valve and problems with the driver's side airbag inflator. These recalls should have been addressed by previous owners, but checking the vehicle's VIN for outstanding recalls is crucial.
Long-term reliability can be a concern due to the age of the vehicle. Rust is a significant issue, especially in areas with road salt. Suspension components, such as ball joints and control arm bushings, can wear out over time, leading to handling issues. The engine and transmission are generally reliable if properly maintained, but neglecting maintenance can lead to costly repairs. Electrical issues, like those related to the body control module, can also arise. Thorough inspection and a pre-purchase inspection by a trusted mechanic are highly recommended.
How long will the 2003 Isuzu Ascender last?
Given its age, a 2003 Isuzu Ascender could easily have accumulated 200,000 miles or more, depending on usage and maintenance. With diligent maintenance, including regular oil changes, fluid checks, and timely repairs, Ascenders have been known to last well over 250,000 miles. However, long-term durability is affected by rust, which is a major weakness, especially in colder climates. Suspension components and electrical systems also tend to degrade over time, requiring more frequent repairs as the vehicle ages. Neglecting maintenance will significantly shorten its lifespan.
What Technology & Safety Features are Included?
The 2003 Isuzu Ascender's tech and entertainment features were relatively basic by today's standards. Standard features typically included an AM/FM radio with a CD player. Higher trims, like the Limited, might have offered an upgraded audio system with a cassette player. There were no advanced driver-assistance features available. Safety features included standard front airbags and anti-lock brakes (ABS). Side airbags were optional on some trims.
Optional features included a rear-seat entertainment system (DVD player) and a sunroof.
Crash test ratings from the NHTSA (National Highway Traffic Safety Administration) generally showed good performance in frontal crash tests, earning four or five stars for driver and passenger protection. Side-impact crash test ratings were typically lower, often earning three or four stars. The IIHS (Insurance Institute for Highway Safety) ratings varied, and it's important to consult specific reports for the 2003 model year.
Compared to modern vehicles, the 2003 Ascender lacks features like Bluetooth connectivity, rearview cameras, and advanced safety systems. However, it provided a reasonable level of safety and convenience for its time. The absence of many modern technologies also means fewer potential points of failure.
Optional features included a rear-seat entertainment system (DVD player) and a sunroof.
Crash test ratings from the NHTSA (National Highway Traffic Safety Administration) generally showed good performance in frontal crash tests, earning four or five stars for driver and passenger protection. Side-impact crash test ratings were typically lower, often earning three or four stars. The IIHS (Insurance Institute for Highway Safety) ratings varied, and it's important to consult specific reports for the 2003 model year.
Compared to modern vehicles, the 2003 Ascender lacks features like Bluetooth connectivity, rearview cameras, and advanced safety systems. However, it provided a reasonable level of safety and convenience for its time. The absence of many modern technologies also means fewer potential points of failure.
What Colors Options are Available?
Exterior Colors
Summit White
Onyx Black
Silver Metallic
Redwood Metallic
Indigo Blue Metallic
Interior Colors
Neutral
Dark Charcoal
2003 Isuzu Ascender Prices and Market Value
When new, the 2003 Isuzu Ascender ranged from approximately $28,000 to $38,000, depending on the trim level and options. Today, used market prices typically range from $2,000 to $7,000, depending on condition, mileage, and location. The Ascender has depreciated significantly due to its age, higher mileage, and the Isuzu brand's exit from the US passenger vehicle market. Factors affecting resale value include the vehicle's overall condition, the presence of the V8 engine, and whether it has been well-maintained. Low mileage examples in excellent condition command a premium, but even then, prices remain relatively low due to its age and market perception.
2003 Isuzu Ascender Cost of Ownership
Insurance costs for a 2003 Isuzu Ascender are generally moderate due to its age and market value. However, fuel costs can be high, especially with the V8 engine. Maintenance and repair costs can be unpredictable. While some parts are readily available due to its shared components with GM vehicles, others may be harder to find. Long-term ownership can be costly if the vehicle requires frequent repairs. Overall, the 2003 Ascender is not considered particularly economical to own compared to more modern and fuel-efficient vehicles.
2003 Isuzu Ascender Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
2003 Isuzu Ascender Recalls & Defects
Power Train:automatic Transmission
Recall date
2003-06-05
Recall no.
03v213000
Source
NHTSA
Summary
Certain Sport Utility Vehicles Fail TO Comply With THE Requirements OF Federal Motor Vehicle Safety Standard NO. 114, "theft Protection." These Vehicles ARE Equipped With A Mechanical Override That Could Allow THE Ignition KEY TO BE Removed With THE Shift Lever IN A Position Other Than Park. IN Addition, These Vehicles Have AN Override That CAN Allow THE Transmission TO BE Shifted OUT OF Park With THE Ignition IN THE OFF Position.
Consequence
These Overrides ARE NOT Permitted Unless THE Vehicle HAS A Locking Steering Column.
Remedy
Dealers Will Eliminate These Conditions BY Disabling THE Overrides. Owner Notification Began June 13, 2003. Owners WHO Take Their Vehicles TO AN Authorized Dealer ON AN Agreed Upon Service Date and DO NOT Receive THE Free Remedy Within A Reasonable Time Should Contact Isuzu AT 1-800-255-6727.
Notes
Customers CAN Also Contact THE National Highway Traffic Safety Administration's Auto Safety Hotline AT 1-888-Dash-2-dot (1-888-327-4236).
Visibility:windshield Wiper/Washer
Recall date
2004-02-04
Recall no.
04v061000
Source
NHTSA
Summary
Certain Sport Utility Vehicles Have Windshield Wiper Systems That Will NOT Turn ON, Cease Operation While IN Use, Fail TO Turn Off/On BY Themselves (Moisture Sensitive Wiper System), or Have Continuous Windshield Washer Pump Operation Because THE Presence OF Water Within THE Wiper Modules CAN Either Cause A Short Circuit or CAN Lead TO THE Corrosion OF Components Within THE Module.
Consequence
Depending ON THE Occurrence and Weather Situation, Driver Visibility Could BE Reduced, Which Could Result IN A Crash.
Remedy
Dealers Will Repair THE Windshield Wiper System Assembly. THE Recall Began ON July 15, 2004. Owners Should Contact Isuzu AT 1-800-255-6727.
Notes
Customers CAN Also Contact THE National Highway Traffic Safety Administration's Auto Safety Hotline AT 1-888-Dash-2-dot (1-888-327-4236).
Exterior Lighting:turn Signal
Recall date
2005-05-05
Recall no.
05v198000
Source
NHTSA
Summary
ON Certain Trucks and Sport Utility Vehicles, THE Driver Wishing TO Signal A Turn BY Moving THE Directional Signal Lever, (UP or Down) MAY Cause THE Front Marker/Turn Lights and Rear Turn Lights TO Flash IN A Manner Similar TO Hazard Warning, Rather Than Flashing ON THE Desired Side Only.
Consequence
THE Driver MAY NOT BE Able TO Clearly Signal Their Intentions TO Turn, Change Travel Lanes, or Potentially Warn Others OF AN Impaired Vehicle Operating Condition Increasing THE Risk OF A Crash.
Remedy
Dealers Will Replace THE Suspect Flasher Modules With A NEW Flasher Module Designed With Sealed Relays and More Durable Contact Material Inside OF THE Relays Free OF Charge. THE Recall Began ON August 4, 2005. Isuzu Began Mailing Owner Letters ON August 4, 2005. Owners MAY Contact Chevrolet AT 1-800-630-2438, GMC AT 1-866-996-9463, Isuzu AT 1-800-255-6727, Buick AT 1-866-608-8080, and Oldsmobile AT 1-800-630-6537.
Notes
GM Recall NO. 05044.customers MAY Also Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Http://Www.safercar.gov.
Latches/Locks/Linkages:doors:latch
Recall date
2005-10-27
Recall no.
05v494000
Source
NHTSA
Summary
Certain Sport Utility Vehicles Have A Rear Side Closure Latch That MAY NOT Latch or Unlatch DUE TO Corrosion Caused BY Road Splash, Such AS Water and Road Salt. These Vehicles Were Originally Sold IN or Currently Registered IN THE Following States: Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, NEW Hampshire, NEW Jersey, NEW York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin, and THE District OF Columbia.
Consequence
IF THE Door IS NOT Latched Properly and IT Goes Unnoticed, IT MAY Open While THE Vehicle IS IN Motion. IF AN Unbelted Occupant Fell OUT OF THE Vehicle, Personal Injuries Could Occur.
Remedy
Dealers Will Install A Seal Along THE Lower Part OF THE Rocker Panel TO Prevent Intrusion OF Corrosive Material, and Inspect THE Rear Side Closure Latches. Functional Latches Will BE Cleaned and Lubricated. Non-Functioning Latches Will BE Replaced. THE Recall Began ON February 24, 2006. Owners MAY Contact Chevrolet AT 1-800-630-2438, GMC AT 1-866-996-9463, or Isuzu AT 1-800-255-6727.
Notes
GM Recall NO. 05077. Customers MAY Also Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Http://Www.safercar.gov.
Equipment:other:owners/Service/Other Manual
Recall date
2003-07-21
Recall no.
03v269000
Source
NHTSA
Summary
Certain Sport Utility Vehicles Fail TO Comply With THE Requirements OF Federal Motor Vehicle Safety Standard NO. 225, "child Restraint Anchorage System." THE Owner's Manual Does NOT Explain THE Meaning OF THE Location Symbols FOR THE Lower Universal Anchorage System.
Consequence
This Does NOT Comply With THE Standard.
Remedy
Owners Will BE Provided With A Supplement FOR Their Owner's Manual. IT Describes and Shows THE Location Symbols FOR THE Child Restraint Anchors That ARE Located IN THE Vehicle. Owner Notification Began August 15, 2003. Owners Should Contact Isuzu AT 1-800-255-6727.
Notes
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 Isuzu Ascender Insurance
Insurance for a 2003 Isuzu Ascender is moderately priced, reflecting its status as a Wagon with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2003 Isuzu Ascender Compare to Other Wagon?
The 2003 Isuzu Ascender competed against the Chevrolet TrailBlazer, GMC Envoy, Ford Explorer, and Jeep Grand Cherokee. In terms of performance, the Ascender was comparable to the TrailBlazer and Envoy, sharing the same engines and chassis. The Ford Explorer offered a similar driving experience, while the Jeep Grand Cherokee provided a more refined and capable off-road experience. Feature-wise, the Ascender lagged behind some competitors in terms of available technology, though it offered similar levels of comfort and convenience.
Reliability was a mixed bag. The Ascender had similar reliability concerns to the TrailBlazer and Envoy, with potential issues in the electrical system and four-wheel-drive components. The Ford Explorer also had its share of reliability problems. The Jeep Grand Cherokee, depending on the engine and trim, could be more reliable.
Price-wise, the used Ascender often represents a better value than its GM counterparts simply because of the Isuzu badge. However, given the potential for similar problems, alternatives like a well-maintained Toyota 4Runner or Honda Pilot (slightly newer models) might offer better long-term reliability and value, even at a slightly higher price point. If sticking with the GM platform, a newer, lower-mileage TrailBlazer or Envoy might be preferable, provided its maintenance history is known.
Reliability was a mixed bag. The Ascender had similar reliability concerns to the TrailBlazer and Envoy, with potential issues in the electrical system and four-wheel-drive components. The Ford Explorer also had its share of reliability problems. The Jeep Grand Cherokee, depending on the engine and trim, could be more reliable.
Price-wise, the used Ascender often represents a better value than its GM counterparts simply because of the Isuzu badge. However, given the potential for similar problems, alternatives like a well-maintained Toyota 4Runner or Honda Pilot (slightly newer models) might offer better long-term reliability and value, even at a slightly higher price point. If sticking with the GM platform, a newer, lower-mileage TrailBlazer or Envoy might be preferable, provided its maintenance history is known.
Ranks #1779 SUV
| 1 | 2023 Toyota 4Runner | (5.0★) |
| 2 | 2023 Honda CR-V Hybrid | (5.0★) |
| 3 | 2023 Lexus GX | (0.0★) |
| 4 | 2024 Mazda CX-90 PHEV | (0.0★) |
| 5 | 2024 Subaru Crosstrek | (5.0★) |
| 6 | 2024 BMW iX | (0.0★) |
| 7 | 2023 Ford Bronco Sport | (3.0★) |
| 8 | 2023 Mercedes-Benz EQB | (0.0★) |
| 9 | 2024 Chevrolet Trax | (5.0★) |
| 10 | 2023 Audi A4 allroad | (0.0★) |
| 11 | 2023 Hyundai Kona N | (0.0★) |
| 12 | 2023 Nissan ARIYA | (5.0★) |
| 1779 | 2003 Isuzu Ascender | (0.0★) |
Final Verdict: Is the 2003 Isuzu Ascender a Good Wagon?
The 2003 Isuzu Ascender is ideal for budget-conscious buyers seeking a capable, body-on-frame SUV with available third-row seating. It's worth considering if you're willing to accept its age-related issues and potential maintenance costs. It's best to buy a well-maintained used model with a thorough pre-purchase inspection. Look for examples with detailed maintenance records and minimal rust. The V8-powered Limited trim offers the most features and towing capacity, but fuel economy will suffer. If reliability is a top priority, consider alternatives. If you need a cheap SUV now, and are prepared to fix it, then this might be suitable.
Simon A
Simon is a contributor to VinCheck, where he provides articles and reviews on various automotive topics. His work focuses on delivering accurate and up-to-date information about used cars, helping readers make informed decisions.