GMC Sierra Classic Problems by Model Year
NHTSA recorded 18 consumer complaints across the 1 model years of the GMC Sierra Classic (2007–2007) that have at least 5 complaints. 2007 has the most, with 18. Across all years, the part named most often is brakes (12 mentions). Pick a model year below to see its parts, mileage, recalls and service bulletins.
All Sierra Classic model years
Years with fewer than 5 complaints are not listed. The score compares years of the same model, allowing for the era and for how long each year has collected complaints: 50 is a typical year, lower means fewer complaints. It is not adjusted for sales volume.
| Year | Complaints | Median mi | Recalls | TSBs | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|
| 2007 | 18 | 40,000 | 0 | 66 | — | Stable |
Parts named most often, all years
Counts add up complaint mentions across the listed years. A complaint can name several parts.
- Brakes12 48%
- Fuel system4 16%
- Electrical system3 12%
- Transmission and drivetrain2 8.0%
- Engine cooling2 8.0%
- Visibility (wipers, defrost, mirrors)1 4.0%
- Steering1 4.0%
Example complaints
One per model year, chosen for length and detail. Personal details are removed. They are consumer reports, not findings.
2007: “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 milesOther GMC models
9,018 complaintsGMC Acadia
5,592 complaintsGMC Yukon
5,015 complaintsGMC Sierra
3,929 complaintsGMC Terrain
3,135 complaintsGMC Jimmy
2,712 complaintsGMC Envoy
2,456 complaintsGMC Yukon XL
2,442 complaints
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Methodology