Most common 2007 Isuzu Ascender problems
Share of the 10 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Isuzu Ascender complaints by model year
Best Ascender years: 2007, 2006. Years to avoid: 2005, 2004. Compare all years →
2007 Isuzu Ascender recalls (4)
Exterior lighting › Headlights
General Motors LLC (GM) is recalling certain model year 2007 Pontiac Grand Prix, 2006-2009 Buick LaCrosse, 2006-2007 Buick Rainier, Chevrolet Trailblazer, GMC Envoy, 2006 Chevrolet Trailblazer EXT, GMC Envoy XL, 2006-2008 Isuzu Ascender, and Saab 9-7x vehicles.
Remedy: GM will notify owners, and dealers will replace the HDM, free of charge. The recall began on May 17, 2016. Owners may contact Buick customer service at 1-800-521-7300 or Pontiac customer service at 1-800-762-2737.
Visibility › Power window devices and controls
General Motors LLC (GM) is recalling certain model year 2005-2007 SAAB 9-7x; 2006 Chevrolet Trailblazer EXT and GMC Envoy XL; and 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier and Isuzu Ascender vehicles.
Remedy: GM will notify owners, and dealers will inspect the part number on the door module, and install a new door module if necessary, free of charge. Parts for the remedy are not currently available.
Visibility › Power window devices and controls
General Motors (GM) is recalling certain model year 2005-2007 SAAB 9-7x; 2006 Chevrolet Trailblazer EXT and GMC Envoy XL; and 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier and Isuzu Ascender vehicles. Fluid may enter the driver's door module, causing corrosion that could result in a short in the circuit board.
Remedy: Owners will be contacted and dealers will test the driver's door module. If the module is functioning properly, a protective coating will be applied. If the module is not functioning properly, it will be replaced.
Visibility › Power window devices and controls
General Motors (GM) is recalling certain model year 2006 Chevrolet Trailblazer EXT and GMC Envoy XL and 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, SAAB 9-7x, and Isuzu Ascender vehicles, originally sold or currently registered in Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts,…
Remedy: Parts for this recall are expected to available in March 2013. GM will notify Buick, Chevrolet, and GMC owners when parts are available.
NHTSA defect investigations
Federal safety investigators have looked into 2 possible defects involving the 2007 Isuzu Ascender:
Loss of Headlights
The subject vehicles are model year (MY) 2002-2009 Chevrolet Trailblazer, GMC Envoy, 2004-2007 Buick Rainier, 2003-2008 Isuzu Ascender, 2005-2009 Saab 9-7X, 2002-2004 Oldsmobile Bravada, 2003-2006 Chevrolet SSR, 2005-2009 Buick Lacrosse, and 2006-2008 Pontiac Grand Prix. This scope includes the Trailblazer/Envoy variants: 2002-2006 Envoy XL/Trailblazer EXT and 2004-2005 Envoy XUV.
Driver's Master Power Window Switch
On August 15, 2012 General Motors (GM) announced a regional recall action (12V-406) involving model year (MY) 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, Isuzu Ascender and MY2005-2007 SAAB 9-7x vehicles originally sold or currently registered in the salt belt states of Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New…
What 2007 Isuzu Ascender owners say
Fuel & propulsion system
I own a 2007 Isuzu Ascender I have right at 42,000 miles on it I filled the tank yesterday and had 3/4 a tank remaining last night this morning on my way to work I had driven a less than a mile from my home and the gas gauge started going down and within a mile from home my gas light was on and my tank showed empty . I drove my vehicle home and switched to my other vehicle when I pulled in my driveway and put the vehicle in park the gas gauge jumped back up to 3/4 full . I called the Isuzu dealer in knoxville tn and as soon as I stated what was going on he knew what was wrong with my vehicle so I figured that they had more problems with this than just mine so I looked online when I got of work and I have read numerous reports and they are all the same problem with these vehicles starting all the way back to the 2005's . …
I purchased a 2007 Isuzu Ascender with 9,900 miles on Monday, February 2, 2009. In November of 2010, the gas gauge started to read inaccurately. If I filled the tank, the gas gauge would show filled. After driving approximately 70-80 miles, the gauge needle would slowly drop to 'e' and the low fuel light would come on. I searched this issue on the internet and found several similar complaints involving GMC vehicles. I am not aware of any recalls that were issued, however, I feel there should be. Based on the number of people who experience this problem. For now, I continue to fill the tank, reset the tripometer and refill once I've driven 90-100 miles, as I am not prepared to spend $800 to replace the faulty fuel sending unit...the mileage on this vehicle is 24K. Thank you
Electrical system
The contact owns a 2007 Isuzu Ascender. The contact stated that while the vehicle was parked and turned off, the driver's side window unexpectedly rolled down. There were no warning lights illuminated. Upon entering the vehicle, the contact noticed an abnormally strong smoky odor inside the vehicle. After inspecting the vehicle, the contact discovered that the driver's door master window switch module had melted and was inoperable. The contact ordered a replacement part for the failure. The dealer was contacted. The vehicle was not diagnosed or repaired. The dealer informed the contact that the vehicle could not be repaired because the door master window switch module was an older module. The manufacturer was made aware of the failure. The approximate failure mileage was 94,000.
Tl* the contact owns a 2007 Isuzu Ascender. The contact stated that while driving at various speeds over bumps and railroad tracks, a chime sounded as all the warning lights illuminated. The contact also stated that the drivers side latch failed and was unable to open the door electronically. The failure occurred on several occasions. The vehicle was repaired under NHTSA campaign number: 14V404000 (visibility) but the failure recurred. The vehicle was not diagnosed or repaired for the initial failure. The manufacturer was not made aware of the failure. The approximate failure mileage was 123,125.
2007 Isuzu Ascender engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 4.2L 6-cyl | 4-speed automatic | RWD | 14 / 20 / 16 |
| 4.2L 6-cyl | 4-speed automatic | 4WD/AWD | 14 / 20 / 16 |
| 5.3L 8-cyl | 4-speed automatic | 4WD/AWD | 14 / 19 / 16 |
EPA ratings. Class: SUV.
Frequently asked questions
Is the 2007 Isuzu Ascender a good car?
Based on 10 owner complaints filed with NHTSA, the 2007 Ascender rates better than average: 73% fewer complaints than a typical year of the Ascender at the same age. It is one of the best Ascender years by this measure. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2007 Isuzu Ascender?
The fuel & propulsion system — 6 complaints, 60% of all complaints for this model year. Next are the electrical system (3) and wheels & tires (1).
How many recalls does the 2007 Isuzu Ascender have?
There are 4 recalls for the 2007 Isuzu Ascender, the most recent from August 14, 2015 (headlights). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Isuzu Ascender?
The best years by complaints, compared at the same age, are 2007 and 2006. Years to avoid or approach with caution: 2005 and 2004. See the full Isuzu Ascender years comparison.
At what mileage do 2007 Isuzu Ascender problems happen?
The median mileage reported in complaints is about 42,000 miles; 56% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.