The Lemon Index2007 GMC Sierra.
The 2007 GMC Sierra is one of the most reliable years by owner complaints: 68 complaints in its first 3 years and a Lemon Index of 37, where 100 is the average car. Owners complain most about electrical, it has 6 recalls, and it gets 15 to 17 mpg combined. The best GMC Sierra year is 2010.
Before you buy. What matters most for this car.
How serious. Out of 422 owner complaints, owners reported:
Older model year: fewer owners filed complaints back then, so treat the score as rough.
Every GMC Sierra year. 2007 is highlighted. Lower is better.
What owners complain about most. From owner complaints to the government.
Share of this year's owner complaints filed with NHTSA, not the share of cars that break. One complaint can name more than one area.
When owners reported problems. From owner complaints to the government.
Most owners who filed a complaint with NHTSA had 26K to 104K miles on the car (238 complaints listed the miles). This shows when people who had a problem reported it, not the odds that your car will have it.
- airbags complaints mostly came at 39K–115K miles
- electrical complaints mostly came at 12K–102K miles
- brakes complaints mostly came at 62K–112K miles
Recalls 6
- airbags 2021
An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.
- airbags 2021
An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.
- airbags 2020
These inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high temperature cycling.
Show all 6 recalls
- airbags 2015
The affected vehicles are equipped with a passenger side frontal air bag that may be susceptible to moisture intrusion which, over time, could cause the inflator to rupture upon its deployment.
- electrical 2014
Owners may unknowingly draw too much current through the vehicle's trailer harness resulting in the melting of fusible link for the auxiliary battery.
- wheels 2007
CERTAIN FEDERAL-MOGUL REPLACEMENT WHEEL HUB ASSEMBLIES WITH THE BRAND NAMES: NATIONAL, CARQUEST P/NOS. 515020, 515021, 515025, 515053, 515054, 515059, AND 515060, SHIPPED BETWEEN JANUARY 23, 2006, AND DECEMBER 20, 2007, …
Recall repairs are free at any dealer. A recall only matters if it's still open on that exact car, so check its VIN.
Problems GMC told dealers about
GMC sent dealers 1564 repair notes for this car. The ones about its biggest problems:
- Abs light on, dtc's c0265, c0201, u1041 set and/or loss of communication with brake module
- Various electrical concerns - intermittently functioning or inoperative component, ip warning…
Ask a seller or mechanic if these were done. Some are free under warranty or a special program.
Government investigations
- OpenDesiccated air bag inflator rupture2021
- ClosedNon-crash engine compartment fires2008
- ClosedNon-crash engine compartment fires2008
NHTSA looks into a problem when enough owners report it. Many end in a recall.
Safety
Crash stars (older test): front ★★★★★ · side ★★★★★ · rollover ★★★★☆
Fuel cost and engines
About $3800–5300 a year in fuel (EPA estimate). Engines: 4.3L 6-cyl, 4.8L 8-cyl, 5.3L 8-cyl, 6.0L 8-cyl.
Quick answers
Is the 2007 GMC Sierra reliable?
Yes, it is one of the most reliable by government complaints. It drew 2.7× fewer complaints than average filed with NHTSA in its first 3 years, per car sold (Lemon Index 37; 100 is average, lower is better). The best GMC Sierra year by this measure is 2010.
What are the most common 2007 GMC Sierra problems?
In owner complaints to the government, the parts named most are electrical (18%), brakes (15%) and tires (13%). That is the share of complaints, not the share of cars that break.
How many recalls does the 2007 GMC Sierra have?
6 safety recalls (latest: airbags). Recall repairs are free at any dealer; check a specific car's VIN at nhtsa.gov/recalls.
What gas mileage does the 2007 GMC Sierra get?
15 to 17 mpg combined, depending on the engine (EPA estimate).
At what mileage do 2007 GMC Sierra problems start?
Half of the owners who gave a mileage reported the problem between 26,800 and 104,200 miles. The middle report was at 70,000 miles, from 238 complaints.
Does the 2007 GMC Sierra have transmission problems?
Transmission and drivetrain issues aren't among its top 5 complaint areas.
How much does the 2007 GMC Sierra cost in fuel a year?
About $3800 to $5300 a year, by the EPA's current estimate.
What engines does the 2007 GMC Sierra have?
4.3L 6-cyl, 4.8L 8-cyl, 5.3L 8-cyl, 6.0L 8-cyl.
What GMC Sierra year is better than the 2007?
By owner complaints per car sold, the best recent years are 2010, 2012 and 2013.
Lemon Index = safety complaints filed with the U.S. government (NHTSA) in a car's first 3 years, per car sold, against the average car of the same model year. 100 is average; lower is better. A complaint is an owner's report, not a confirmed defect. How it works