2003 Isuzu Ascender
The Verdict
Worst problem area
Electrical
Electrical leads by volume: 9 of 35 complaints (26%) mention it.
Data last changed . Sources: NHTSA complaints and recalls, EPA fuel economy data. Methodology
Cost, Fuel Economy & Complaint History
| Category | 2003 | 2004 | 2005 | vs. 2003 Sport Utility Vehicle - 2WD |
|---|---|---|---|---|
| Annual fuel cost ($) | 3,900–4,450 | 3,900–4,450 | 3,900–4,150 | |
| Combined MPG | 14–16 | 14–16 | 15–16 | |
| City / Highway MPG | 13–14 / 16–19 | 13–14 / 17–19 | 13–14 / 18–20 | |
| CO₂ tailpipe (g/mi) | 555–635 | 555–635 | 555–592 | |
| Complaints filed | 35 | 64 | 64 | |
| Recalls issued | 5 | 1 | 1 | |
| Crash-involved complaints | 2 | 0 | 3 | |
| Fire-involved complaints | 0 | 2 | 1 | |
| Injuries reported | 2 | 0 | 1 | |
| Deaths reported | 0 | 0 | 0 | |
| Configurations compared | 2 | 3 | 3 |
Not compared: this database has no vehicle sales or registration figures, so a raw count mostly reflects how many were sold, not how safe the vehicle is.
Common questions
How many recalls does the 2003 Isuzu Ascender have?
5 NHTSA recall campaigns as of Sep 16, 2026. Check your VIN with NHTSA to see whether one applies to your car.
What is the most common complaint about the 2003 Isuzu Ascender?
Electrical: 9 of 35 NHTSA complaints (26%) mention it.
What gas mileage does the 2003 Isuzu Ascender get?
EPA rates it 14–16 MPG combined.
How much does it cost to fuel a 2003 Isuzu Ascender?
EPA estimates $3,900–$4,450 a year in fuel costs, using EPA's assumptions.
Similar Vehicles
EPA-Rated Configurations (4)
| Configuration | Transmission | Cylinders | Displacement | Drivetrain | Fuel Type | Vehicle Class | City | Highway | Combined | Annual Fuel Cost | CO₂ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Configuration 1 | Automatic 4-spd | 6 | 4.2L | Rear-Wheel Drive | Regular | Sport Utility Vehicle - 2WD | 14 mpg (high) | 19 mpg (high) | 16 mpg (high) | $3,900 (low) | 555 g/mi (low) |
| Configuration 2 | Automatic 4-spd | 8 | 5.3L | Rear-Wheel Drive | Regular | Sport Utility Vehicle - 2WD | 14 mpg (high) | 18 mpg | 15 mpg | $4,150 | 592 g/mi |
| Configuration 3 | Automatic 4-spd | 6 | 4.2L | 4-Wheel or All-Wheel Drive | Regular | Sport Utility Vehicle - 4WD | 13 mpg (low) | 19 mpg (high) | 15 mpg | $4,150 | 592 g/mi |
| Configuration 4 | Automatic 4-spd | 8 | 5.3L | 4-Wheel or All-Wheel Drive | Regular | Sport Utility Vehicle - 4WD | 13 mpg (low) | 16 mpg (low) | 14 mpg (low) | $4,450 (high) | 635 g/mi (high) |
Complaints by Category
| Category | Complaints | Crash-Involved | Fire-Involved | Injuries | Deaths |
|---|---|---|---|---|---|
| Engine | 2 | 0 | 0 | 0 | 0 |
| Transmission & Drivetrain | 4 | 0 | 0 | 0 | 0 |
| Fuel System | 6 | 0 | 0 | 0 | 0 |
| Electrical | 9 | 0 | 0 | 0 | 0 |
| Brakes | 3 | 1 | 0 | 0 | 0 |
| Steering | 2 | 0 | 0 | 0 | 0 |
| Suspension, Wheels & Tires | 2 | 0 | 0 | 1 | 0 |
| Airbags & Restraints | 2 | 1 | 0 | 1 | 0 |
| Driver Assistance & Speed Control | 0 | 0 | 0 | 0 | 0 |
| Body, Seats & Latches | 5 | 0 | 0 | 1 | 0 |
| Visibility & Lighting | 8 | 0 | 0 | 0 | 0 |
| Other | 0 | 0 | 0 | 0 | 0 |
A complaint that names more than one category is counted in each, so the rows can add up to more than the total number of complaints.
Recalls (5)
LATCHES/LOCKS/LINKAGES:DOORS:LATCH · Campaign 05V494000 · Oct 27, 2005
Defect: 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.
EXTERIOR LIGHTING:TURN SIGNAL · Campaign 05V198000 · May 5, 2005
Defect: 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.
VISIBILITY:WINDSHIELD WIPER/WASHER · Campaign 04V061000 · Feb 10, 2004
Defect: 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.
EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL · Campaign 03V269000 · Jul 30, 2003
Defect: 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.
POWER TRAIN:AUTOMATIC TRANSMISSION · Campaign 03V213000 · Jun 9, 2003
Defect: 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.