2008 Chevrolet Suburban 1500 electrical system problems
12 owner complaints filed with NHTSA name the electrical system on the 2008 Chevrolet Suburban 1500 — 12% of all complaints for this model year.
What owners report
“Rear radio/control system started to smoke while stopped at an intersection in october 2018. We have not tried the radio, but the heated seat doesn't work. We are unsure if we should go out of town with it and have not had it inspected.”
filed May 16, 2019
“Rear radio/control system started to smoke while stopped at an intersection about a month ago. We have not tried the radio, but the heated seats still work. We are unsure if we should go out of town with it and have not had it inspected.”
filed Nov 15, 2018
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
23-NA-001 · Service Bulletin/Repair Instructions · issued Mar 28, 2025
Electrical System problems in other Suburban 1500 years
| Year | Reports | Share |
|---|---|---|
| 2025 Suburban 1500 | 5 | 19% |
| 2011 Suburban 1500 | 4 | 5% |
| 2009 Suburban 1500 | 6 | 11% |
| 2007 Suburban 1500 | 26 | 14% |
| 2006 Suburban 1500 | 7 | 23% |
| 2005 Suburban 1500 | 46 | 49% |
| 2004 Suburban 1500 | 84 | 46% |
| 2003 Suburban 1500 | 60 | 34% |
| 2002 Suburban 1500 | 2 | 2% |
| 2001 Suburban 1500 | 4 | 4% |
| 2000 Suburban 1500 | 1 | 1% |
| 1999 Suburban 1500 | 2 | 3% |
Other reported problem areas on the 2008 Chevrolet Suburban 1500
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.