Reliability, what owners report, and what it costs to keep.
AVOIR's read: a solid ownership case with specific caveats below.
Owners have filed 181 complaints with NHTSA about the 1998 GMC Sonoma, and it carries 4 recalls. These are owner allegations rather than confirmed defects, but the pattern of what people complain about is the most useful signal a used buyer has.
| Area | Complaints | Share |
|---|---|---|
| Visibility | 46 | 25% |
| Seats | 24 | 13% |
| Service brakes | 14 | 8% |
| Power train | 9 | 5% |
| Engine and engine cooling | 9 | 5% |
| Structure | 8 | 4% |
| Air bags | 7 | 4% |
| Electrical system | 6 | 3% |
| Steering | 6 | 3% |
| Suspension | 5 | 3% |
Verbatim from NHTSA complaint records, trimmed for length.
WHILE DRIVING ALL ELECTRICAL SHUTS DOWN ENGINE , EVERYTHING!!!!!!!!!
NHTSA complaint: Electrical system
TL* THE CONTACT OWNS A 1998 GMC SONOMA. WHILE DRIVING 50 MPH, THE AIR BAGS DEPLOYED WITHOUT WARNING OR IMPACT. THERE WERE NO INJURIES. THE VEHICLE WAS TOWED TO THE CONTACT'S HOME. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIR
NHTSA complaint: Air bags
PASSENGER SEAT DOES NOT LOCK INTO PLACE. PASSENGERS SEAT SLIDE FORWARD AND BACKWARD , AND AIR BAG LIGHT STAYED ON , LEFT TURN SIGNAL LIGHT AND BRAKE DON'T COME ON. *TR
NHTSA complaint: Exterior lighting
I WAS DRIVING HOME ON THE HWY, DRIVING BETWEEN 35-60 MPH BECAUSE OF ICY, SNOWY, SLUSHY, 35 MPH WINDY CONDITIONS. MY STEERING WHEEL STARTED VIBRATING CRAZILY AND MY TRUCK KEPT WANTING TO PULL ITSELF TO THE LEFT. I FEL
NHTSA complaint: Tires
DRIVER WAS GOING APPROX. 40MPH DOWN THE RURAL HIGHWAY IN HEAVY RAIN AND THE TRUCK IN FRONT OF HER CAME TO A STOP. BY THE TIME THE DRIVER OF THE SONOMA SAW THE TRUCK IT WAS TOO LATE TO STOP AND NOT HIT THE STOPPED VEHICLE
NHTSA complaint: Steering
TL* THE CONTACT OWNS A 1998 GMC SONOMA. THE CONTACT STATED THAT THE WINDSHIELD WIPERS WOULD STOP WORKING SPORADICALLY. THE VEHICLE WAS NOT TAKEN TO THE DEALER. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE BUT DID NOT O
NHTSA complaint: Visibility
TL* THE CONTACT OWNS A 1998 GMC SONOMA. THE CONTACT STATED THAT THERE WAS RUSTING UNDERNEATH THE VEHICLE, CAUSING THE FRAME TO SEPARATE INTO TWO PIECES. THE DEALER AND MANUFACTURER WERE NOTIFIED, BUT OFFERED NO ASSISTANC
NHTSA complaint: Structure
I LOST THE TREAD ON ONE OF MY TOYO TIRES AS I WAS DRIVING DOWN THE FREEWAY. IT COMPLETELY SEPARATED FROM THE TIRE! IT WAS THE PASSENGER FRONT TIRE. THANKFULLY, I WAS ABLE TO STEER TO THE EMERGENCY LANE AND CALL FOR HE
NHTSA complaint: Tires
NHTSA lists 4 recall campaigns for the 1998 GMC Sonoma. Recalls are free to have fixed at a franchised dealer regardless of who owns the car now, but only if they were never done, so check the VIN of the specific car rather than trusting the model.
CERTAIN DELPHI FUEL PRESSURE REGULATORS, P/NOS. FP10020-11B1, FP10026-11B1, AND FP10027-11B1, SOLD AFTER JANUARY 9, 2007, AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES LISTED ABOVE. THE UNIVERSAL PRESSURE REGULATORS (UPR) WERE PRODUCED WITHOUT AN O'RING AND RETAINER.
Risk: FUEL MAY LEAK, POSSIBLY RESULTING IN A FIRE.
Fix: DELPHI WILL NOTIFY OWNERS AND REPLACE THE UPR FREE OF CHARGE. THE RECALL BEGAN ON APRIL 23, 2007. OWNERS CAN CONTACT DELPHI AT 877-411-8770.
VEHICLE DESCRIPTION: LIGHT DUTY PICKUP TRUCKS AND SPORT UTILITY VEHICLES. THESE VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FMVSS NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THE DAYTIME RUNNING LIGHTS BUILT WITH A CANDELA VALUE GREATER THAN 3,000 CANNOT BE MOUNTED HIGHE
Risk: THESE VEHICLES DO NOT COMPLY WITH REQUIREMENTS OF FMVSS NO. 108.
Fix: DEALERS WILL INSTALL A REVISED WIRING HARNESS THAT CHANGES THE DRL'S FROM HIGH BEAM TO LOW BEAM DRL'S, AND INSTALL NEW LONG-LIFE LOW BEAM BULBS.
VEHICLE DESCRIPTION: LIGHT DUTY PICKUP TRUCKS AND MULTI-PURPOSE PASSENGER VEHICLES. A FATIGUE FRACTURE OF THE REAR AXLE RIGHT-HAND BRAKE PIPE CAN OCCUR CAUSING A SLOW BRAKE FLUID LEAK RESULTING IN A SOFT BRAKE PEDAL. IF THE BRAKE PIPE BREAKS, THE DRIVER WOULD EXPERIENCE A SUDDEN DROP IN THE BRAKE
Risk: PARTIAL LOSS OF BRAKING AT A TIME WHEN MINIMUM STOPPING DISTANCE WAS REQUIRED COULD RESULT IN A VEHICLE CRASH.
Fix: DEALERS WILL INSPECT AND REPLACE THE BRAKE PIPE.
VEHICLE DESCRIPTION: LIGHT DUTY PICKUP TRUCKS AND MULTI-PURPOSE VEHICLES. AN ENGINE ELECTRICAL WIRING-HARNESS CLIP CAN MELT AND DRIP ONTO THE EXHAUST MANIFOLD.
Risk: THE CLIP MATERIAL ON THE EXHAUST MANIFOLD CAN IGNITE AND SUBSEQUENTLY IGNITE OTHER COMBUSTIBLE COMPONENTS RESULTING IN A VEHICLE FIRE.
Fix: DEALERS ARE CONTACTING OWNERS BY TELEPHONE TO HAVE THEIR VEHICLES TOWED TO THE DEALER AND ALTERNATE TRANSPORTATION PROVIDED TO THEM UNTIL THE DEALER CAN REROUTE THE ELECTRICAL WIRING-HARNESS.
| Reliability raw | 84 | excellent |
|---|---|---|
| Longevity est. | 80 | excellent |
| Maintenance | 86 | excellent |
| Depreciation | 84 | excellent |
| Performance | 52 | average |
| Efficiency | 36 | below average |
Percentile ranks against other pickup trucks in the catalog.
What stands behind each score for this car:
Owners have filed 181 complaints with NHTSA for this model-year, and visibility is the most reported area with 46 of them (25%). There are 4 recalls on record. Check any specific car against its VIN before buying.
AVOIR scores its reliability 84/100 (excellent) from NHTSA recall campaigns and complaint density. That figure is a raw complaint count, not yet adjusted for sales volume, so a high-volume model scores worse than it deserves.
AVOIR scores its longevity 80/100, but that figure is an estimate built from the powertrain and the brand's record, not a measurement. A 1998 car has no 200,000-mile population to observe yet, so treat it as a prior rather than evidence.
AVOIR's read: worth a look, because a solid ownership case with specific caveats below. Its overall ownership score is 76/100. Condition, mileage and service history still matter more than any score, so get a pre-purchase inspection on the specific car.
Sources: NHTSA recalls and complaints, EPA fuel economy, IIHS awards, and live market listings. A score describes a model-year, not the individual car in front of you. Get a pre-purchase inspection.