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GMC Sierra ClassicModel year report

2007 GMC Sierra Classic Problems

Complaints
18filed with NHTSA
Median mileage
40,000miles, 17 complaints with mileage
Recalls
0campaigns on record
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA crash rating
—overall rating starts with 2011 models
EPA fuel economy
16 mpgcombined, 4.3L 6-cyl RWD · 14 city / 20 hwy

Sources: NHTSA records for the 2007 GMC Sierra Classic (complaints, recalls, investigations), EPA fuel economy. Report an error

NHTSA recorded 18 consumer complaints for the 2007 GMC Sierra Classic. The part named most often is brakes, with 12 complaints (67% of the total), followed by fuel system (4) and electrical system (3). 17 of the complaints include a mileage, and 59% of those were filed for vehicles with under 50,000 miles; the median is 40,000 miles. Of all complaints, 2 a fire, according to the filers. NHTSA lists 0 recall campaigns and 66 technical service bulletins for this model year. Brakes complaints overlap with 3 technical service bulletins filed under the same part. Fuel system complaints overlap with 1 technical service bulletin filed under the same part.

This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Example complaints

Brakes: “Rusty brake lines lost brakes, think that a vehical should go 10 years without brake lines rusting away I was lucky when they broke I was home but just got back from another state and was at highway speeds.”

NHTSA complaint #10849684, filed 2016-03, 129,000 miles

Fuel system: “I was driving at 55 miles per hour and the truck just stopped running. There was no warning. I had to pull over fast to avoid an accident. The truck only has 40,000 miles on it. The dealership says that it is a fuel cell and that it is not covered under my 100,000 mile warranty.”

NHTSA complaint #10314107, filed 2010-02, 40,000 miles

Electrical system: “Engine shuts down, service brake system message appears in display, ABS light illuminates. Since engine shuts down, lose steering and braking. Latest incident occured on highway during rush hour. This also happened first year I owned the vehicle (I bought it new), they replaced the underhood fuse box. This happened again on march 13. They replaced a blown PCM fuse and said they could find nothing wrong. When it occured on 3/29, I replaced the fuse 5 times to try and get off the freeway. After each time it was replaced, I could drive 1-2 miles before it would blow again.”

NHTSA complaint #10323063, filed 2010-03, 33,800 miles

Engine cooling: “Why is GM recall 14121 limited to new vehicles? It has been a recurrent, common problem since long before 2000. Long before I bought my 2007 Gmc Sierra Classic 2500hd which is on the third repair. I just replaced a transmission cooler line in my driveway. Today. Which is steadily eroding by way of continuous transmission cooler leaks. It continuously coats the underside of vehicle, reducing life of belts and hoses. Gm dealers feel its not covered by 5/100k powertrain warranty, or 36k bumper-bumper warranty because it's a long time GM problem as well as warranties in general.”

NHTSA complaint #10701504, filed 2015-03, 18,000 miles

Mileage when problems were reported

59% of the 17 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 32,163 and 59,400 miles.

6%0–106%10–2547%25–5024%50–756%75–1006%100–1506%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (17 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 40,000 miles.

Complaints by year filed

Trend: stable. Complaints filed in the last 3 full calendar years are within 25% of the 3 years before.

2008200920104201220132014420152016
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Fuel economy and running cost

EPA ratings for each 2007 GMC Sierra Classic version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).

VersionEngineTransmissionCityHwyComb.Fuel / yr
Sierra Classic 1500 2WD4.3L 6-cyl5-speed manual152117$3,950
Sierra Classic 1500 2WD4.3L 6-cyl4-speed automatic142016$4,200
Sierra Classic 1500 2WD4.8L 8-cyl4-speed automatic151917$3,950
Sierra Classic 1500 2WD5.3L 8-cyl4-speed automatic141916$4,200
Sierra Classic 1500 2WD6.0L 8-cyl4-speed automatic131715$5,500
Sierra Classic 1500 4WD4.3L 6-cyl4-speed automatic141715$4,450
Sierra Classic 1500 4WD4.3L 6-cyl5-speed manual141915$4,450
Sierra Classic 1500 4WD4.8L 8-cyl4-speed automatic141815$4,450
Sierra Classic 1500 4WD5.3L 8-cyl4-speed automatic131715$4,450
Sierra Classic 1500 4WD6.0L 8-cyl4-speed automatic131614$5,850
Sierra Classic 1500 AWD6.0L 8-cyl4-speed automatic131614$5,850
Sierra Classic 1500 2WD5.3L 8-cyl · flex-fuel4-speed automatic141916$4,200
Sierra Classic 1500 4WD5.3L 8-cyl · flex-fuel4-speed automatic131715$4,450
Sierra Classic 15 Hybrid 2WD5.3L 8-cyl · hybrid4-speed automatic161917$3,950

1 more EPA-rated versions are not shown.

Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.

Recalls and investigations

NHTSA lists no recall campaigns for the 2007 GMC Sierra Classic in the data used here. A recall can apply to some vehicles of a model year and not others, so check a specific vehicle by VIN at nhtsa.gov/recalls.

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 66 on record; the latest 10 are shown.

See all 66 bulletins →

Other model years of the GMC Sierra Classic

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
20071840,0000—16—Stable

All GMC Sierra Classic model years

Frequently asked questions

How many NHTSA complaints does the 2007 GMC Sierra Classic have?

NHTSA recorded 18 consumer complaints for the 2007 GMC Sierra Classic as of Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2007 GMC Sierra Classic is reported most often?

Brakes is named most often, in 12 complaints (67% of the total), followed by fuel system with 4.

Has the 2007 GMC Sierra Classic been recalled?

NHTSA lists no recall campaigns for this model year in the data used here. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

What gas mileage does the 2007 GMC Sierra Classic get?

The EPA rates the 2007 GMC Sierra Classic (Sierra Classic 1500 2WD, 4.3L 6-cyl) at 16 mpg combined, 14 city and 20 highway, with an estimated annual fuel cost of $4,200 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2007 GMC Sierra Classic reported?

Among the 17 complaints that include a mileage, the median is 40,000 miles and the middle half falls between 32,163 and 59,400 miles; 59% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Fuel economy is from the EPA and DOE (fueleconomy.gov).

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.