1990 GMC Suburban problems & reliability
22 owner complaints filed with NHTSA for the 1990 GMC Suburban. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
4 complaints report injuries (4 injured).
Federal crash records (FARS 2020–2023): 1990 GMC Suburban vehicles were involved in 1 fatal crash with 1 occupant death. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Seats | 7 | 32% |
| Service Brakes, Hydraulic | 7 | 32% |
| Parking Brake | 3 | 14% |
| Power Train | 2 | 9% |
| Suspension | 2 | 9% |
| Vehicle Speed Control | 2 | 9% |
| Electrical System | 1 | 5% |
| Tires | 1 | 5% |
| Unknown OR Other | 1 | 5% |
| Wheels | 1 | 5% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Complaints by incident year
What owners report
“Consumer states the metal parking brake cable wears into the rubber brake hose, which could cause failure of the brake hose and the rear brakes, the rubber brake hose was almost worn to the point of failure, the metal parking brake cable does have a metal sleeve on it to protect the rubber hose, but the natural…”
Parking Brake · filed Apr 26, 2002
“Consumer raised hood; attempted to start vehicle, after vehicle would not start, douglas battery suddenly blew up, consumer was injured. *ak *tt”
Electrical System · filed Mar 12, 2002
“I believe the suburban series vehicles have a design defect in the brake system because the rear brake hose(from the body to a connector above the differential) is used as a support for the parking brake cable. The stronger, heavier parking brake cable rubs on the rubber brake hose, causing the rubber hose to fail…”
Parking Brake · filed Mar 8, 2002
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- ENGINE COMPARTMENT FIRES
Engineering Analysis EA94029 · opened Jul 29, 1994 · closed Jul 31, 1996
- SEAT BACK BOLT BREAKAGE
Engineering Analysis EA92022 · opened Jun 24, 1992 · closed Nov 19, 1993 · led to recall 93V187000
- SEAT BACK FAILURES
Preliminary Evaluation PE92026 · opened Mar 6, 1992 · closed Jun 24, 1992
- TRAILER HITCH SEPERATION
Preliminary Evaluation PE90004 · opened Oct 10, 1989 · closed Feb 2, 1990
Technical service bulletins
4 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 1990 GMC Suburban.
Diagnosis of cracked or broken transmission case. *tt 2006 and prior cars and light duty trucks. *tt
020730024A · Service Bulletin/Repair Instructions · issued Aug 1, 2005
Diagnostic information for intermittent transmission downshift, slip, busy/cycling tcc or noisy cooling fan. *tt
990730016A · Service Bulletin/Repair Instructions · issued Oct 1, 2002
COLD ENGINE KNOCK. *TW
376105 · Service Bulletin/Repair Instructions · issued Feb 1, 1995
New cast iron exhaust manifold and stainless steel gasket to correct engine noise condition. *tw
376602A · Service Bulletin/Repair Instructions · issued Jan 1, 1995
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
No NHTSA recall campaigns name the 1990 GMC Suburban in our current data. Recalls may apply only to certain VIN ranges — always confirm with a VIN check.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 1990 GMC Suburban?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.