GMC C1500 Suburban Problems by Model Year
NHTSA recorded 12 consumer complaints across the 1 model years of the GMC C1500 Suburban (1999–1999) that have at least 5 complaints. 1999 has the most, with 12. Across all years, the part named most often is electrical system (5 mentions). Pick a model year below to see its parts, mileage, recalls and service bulletins.
All C1500 Suburban 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 |
|---|---|---|---|---|---|---|
| 1999 | 12 | 130,500 | 0 | 8 | — | Not enough data |
Parts named most often, all years
Counts add up complaint mentions across the listed years. A complaint can name several parts.
- Electrical system5 33%
- Brakes3 20%
- Engine cooling2 13%
- Suspension1 6.7%
- Body and structure1 6.7%
- Steering1 6.7%
- Other or unknown1 6.7%
- Latches, locks and linkages1 6.7%
Example complaints
One per model year, chosen for length and detail. Personal details are removed. They are consumer reports, not findings.
1999: “Airbag light is on. Needs new module and the part is currently unavailable from Gmc. Repair shop will not guarantee work on installation of a third party part. I have spoken extensively with Gmc corporate and they continue to delegate this issue to the dealership level. Imo, the dealership (thorson motor center, pasadena, ca) has done all they can by ordering the part for me. If the part is unavailable, that is not the dealership's fault. Further, there is no estimated time of arrival even though the order has been expedited. …”
NHTSA complaint #10622285, filed 2014-08, 93,000 milesOther GMC models
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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