1999 Gmc SONOMA problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
48 owner complaints analyzed
0 distinct recall campaigns
57,000 mi median reported failure mileage
Scope: 1999 model year. Data snapshot: . 24 complaints include usable failure mileage.
Most common problems
Seats:Front Assembly:Recliner is the most frequently named component, appearing in 5 of 48 complaints (10.4%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 8 | 16.7% |
| Engine operation | 4 | 8.3% |
| Steering behavior | 4 | 8.3% |
| Transmission and shifting | 2 | 4.2% |
| Electrical and battery issues | 2 | 4.2% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Seats:Front Assembly:Recliner | 5 |
| Structure:Body:Tailgate:Hinge And Attachments | 4 |
| Air Bags:Frontal | 3 |
| Fuel System, Gasoline | 3 |
| Power Train:Automatic Transmission | 3 |
| Unknown Or Other | 3 |
| Air Bags | 2 |
| Engine And Engine Cooling | 2 |
Seats:Front Assembly:Recliner: 5; Structure:Body:Tailgate:Hinge And Attachments: 4; Air Bags:Frontal: 3; Fuel System, Gasoline: 3; Power Train:Automatic Transmission: 3; Unknown Or Other: 3; Air Bags: 2; Engine And Engine Cooling: 2
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 1 |
| 25,000 to 49,999 | 8 |
| 50,000 to 74,999 | 7 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 5 |
| 150,000 and above | 3 |
Under 25,000: 1; 25,000 to 49,999: 8; 50,000 to 74,999: 7; 75,000 to 99,999: 0; 100,000 to 149,999: 5; 150,000 and above: 3
25,000 to 49,999 miles has the most reports with usable mileage (8). 24 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2000 | 7 |
| 2001 | 4 |
| 2002 | 8 |
| 2003 | 6 |
| 2004 | 5 |
| 2005 | 4 |
| 2006 | 5 |
| 2007 | 1 |
| 2009 | 2 |
| 2011 | 1 |
| 2013 | 1 |
| 2015 | 2 |
| 2017 | 2 |
2000: 7; 2001: 4; 2002: 8; 2003: 6; 2004: 5; 2005: 4; 2006: 5; 2007: 1; 2009: 2; 2011: 1; 2013: 1; 2015: 2; 2017: 2
Pattern summary
Seats:Front Assembly:Recliner leads the component reports. Braking behavior appears in 8 complaint narratives. Engine operation appears in 4 complaint narratives. Steering behavior appears in 4 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10016939 · 2003-05-02 (May 2, 2003)
REAR BRAKE ROTORS DISINTEGRATED AFTER 22,000 MILES. HAD TO BE TURNED AND PADS REPLACED. FRONT ROTORS REPLACED AT 32,000 MILES SAME CONDITION. MASTER CYLINDER FAILED AND NEEDED TO BE REPLACED AT 32,800 MILES. PEDAL WENT TO THE FLOOR AND NEARLY WENT IN FRONT OF A SEMI. PEDAL CAN BE PUMPED UP BUT GRADUALLY GOES TO FLOOR. *TT
Owner-reported narrative. 32,900 miles reported. Look up ODI 10016939 at NHTSA ↗
Owner report 10157484 · 2006-05-13 (May 13, 2006)
NOT SURE IF BELT BROKE FIRST OR FAN BLADE THE BLADE BROKE OFF AND FLEW INSIDE OF TRUCK CAUSING DAMAGE TO PARTS UNDER THE HOOD IT WAS 1000.00 TO FIX ALL THE PARTS BROKEN BY THIS. I HAVE ALL THE OLD PARTS. THE BELT WAS OK BUT SOMETHING CAUSED THE BLADE TO BRAKE OFF AND THERE ARE NOTICEABLE CRACKS IN THE BLADE AROUND THE NUT. BECAUSE OF THIS FAILURE I HAD TO REPLACE A LOT OF COMPONENTS UNDER THE HOOD. *NM
Owner-reported narrative. 100,000 miles reported. Look up ODI 10157484 at NHTSA ↗
Owner report 10016971 · 2003-05-03 (May 3, 2003)
DEALER WHERE VEHICLE WAS TOWED FOR REPAIRS SAYS THE AUTOMATIC TRANSMISSION MUST BE PULLED AND DISASSEMBLED TO DETERMINE WHAT IS BROKEN AND THE FACTORY WILL NOT PROVIDE WARRANTY RELIEF SINCE THE TRUCK IS OVER 4 YEARS OLD EVEN THOUGH THE VEHICLE HAS ONLY 36,489 MILES. ORIGINAL WARRANTY WAS 3 YEARS OR 36,000 MILES WHICH EVER COMES FIRST. VEHICLE HAS BEEN SERVICED BY DEALER SINCE PURCHASE. THE TRUCK GAVE A HIGH SCREECHING NOISE AND LOSS OF POWER IN THE TRANSMISSION, FORWARD DRIVE GEAR. I PULLED OFF THE FAIRFAX COUNTY PARKWAY IN HERNDON AND PULLE…
Owner-reported narrative. 36,489 miles reported. Look up ODI 10016971 at NHTSA ↗
Owner report 10726262 · 2015-06-19 (June 19, 2015)
TL* THE CONTACT OWNS A 1999 GMC SONOMA. WHILE DRIVING 72 MPH ON THE HIGHWAY, THE VEHICLE LOST ALL POWER AND THE POWER STEERING FAILED. AFTER THE VEHICLE STALLED, ALL THE LIGHTS ILLUMINATED ON THE INSTRUMENT PANEL. THE VEHICLE WAS TOWED TO A DEALER WHERE IT WAS DIAGNOSED THAT THE IGNITION SWITCH NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 156,000.
Owner-reported narrative. 156,000 miles reported. Look up ODI 10726262 at NHTSA ↗
Owner report 10068940 · 2004-01-15 (January 15, 2004)
SEALS AND GASKETS FOR THE DIFFERENTIAL, POWER STEERING, OIL PAN AND DRIVE TRAIN WERE ALL WORN AND NEEDED REPLACING
Owner-reported narrative. 47,000 miles reported. Look up ODI 10068940 at NHTSA ↗
Owner report 10118892 · 2005-04-12 (April 12, 2005)
1999 GMC SONOMA EXPERIENCED PROBLEMS WITH TRANSMISSION, CD PLAYER, TIRES AND HEATING COIL.*MR CONSUMER CONCERNED THAT DEALER DID NOT TELL THEM THAT THERE WAS A RECALL ON THIS VEHICLE. THE TRANSMISSION WAS REPLACED, EXCHANGED REBUILT TORQUE CONVERTER WITH TRANCES FILLER 12 MONTH OR 12,000 MILE WARRANTY. *BF *NM
Owner-reported narrative. Look up ODI 10118892 at NHTSA ↗
Owner report 718952 · 2000-02-18 (February 18, 2000)
1) BOYFRIEND DRIVING, PULLED UP TO INTERSECTION, TRUCK STALLED, RESTARTED, DIED, NOTICED SMOKE, OPENED HOOD, FIRE NEAR BATTERY AND ANTIFREEZE CONTAINER, PUT OUT WITH SNOW, VEHICLE TOWED TO DEALERSHIP, CONTACTED GM, TOLD A REP WOULD CONTACT ME WITHIN 24-48 HOURS, THAT WAS A WEEK AGO, NO CALL, VEHICLE JUST SITS!! 2) ABS LIGHT ON, TOLD BY DEALERSHIP TO MAKE APPOINTMENT, NOT A BIG DEAL. WHEN LIGHT WAS ON THAT WAS TRUE, BUT LIGHT DIDN'T ALWAYS COME ON AND IT WAS LIKE A BRICK WAS BEHIND THE BRAKE. HAD TO SLAM ON IT! NOT GOOD ON THESE WINTER ROADS…
Owner-reported narrative. Look up ODI 718952 at NHTSA ↗
Owner report 9005523 · 2002-01-03 (January 3, 2002)
SHORT IN THE ELECTRICAL SYSTEM, BLOWING THE IGNITION FUSE, CAUSING THE VEHICLE TO STALL. THIS CONTINUED UNTIL THE WIRING IN THE STEERING COLUMN SHORTED, CAUSING THE VEHICLE TO STALL IN TRAFFIC, SMOKE CAME FROM THE STEERING COLUMN AND FROM UNDER THE HOOD.
Owner-reported narrative. Look up ODI 9005523 at NHTSA ↗