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#BS-1991-GMCSON-1BB91991 GMC SonomaProblems, Recalls & Reliability
Based on reports from 35 owners and 2 recalls for this exact model.
Data updated ·checked October 30, 2026 · NHTSA complaints through October 28, 2026
Preliminary Verdict
Proceed with Caution
Based on 35 complaints, 3 crashes, 3 fires, and 2 recalls.
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Mechanic Inspection Checklist
10 owners reported service brakes, hydraulic:antilock/traction control/electronic limited slip issues — failures commonly reported around 95K miles.
30,000-Mile Cost Projection
Best Case
Most Likely
Worst Case
Top cost driver: Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip (10 reports).
Also in your report
Owner Intelligence
AI-synthesized themes from real complaints
Buyer Lot Checklist
Questions, test drive checks, walk-away triggers
Negotiation Talking Points
Data-backed dollar deductions
Buy / Skip Verdict
Final recommendation with conditions
Where the complaints fall
1991 GMC Sonoma: Known Issues & Problem Areas
Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip Issues
Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip complaints account for 29% of all reports filed for the 1991 GMC Sonoma, with 10 owners filing complaints with NHTSA. The median mileage at time of complaint is 95,486 miles, suggesting issues tend to surface around the 95K-mile mark.
Electrical System:wiring:front Underhood Issues
Electrical System:wiring:front Underhood complaints account for 6% of all reports filed for the 1991 GMC Sonoma, with 2 owners filing complaints with NHTSA. Owners should pay attention to electrical system:wiring:front underhood-related symptoms during test drives and pre-purchase inspections.
Service Brakes, Hydraulic:foundation Components Issues
Service Brakes, Hydraulic:foundation Components complaints account for 6% of all reports filed for the 1991 GMC Sonoma, with 2 owners filing complaints with NHTSA. Owners should pay attention to service brakes, hydraulic:foundation components-related symptoms during test drives and pre-purchase inspections.
Electrical System:alternator/generator/regulator Issues
Electrical System:alternator/generator/regulator complaints account for 3% of all reports filed for the 1991 GMC Sonoma, with 1 owners filing complaints with NHTSA. Owners should pay attention to electrical system:alternator/generator/regulator-related symptoms during test drives and pre-purchase inspections.
Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.
Complaint trend by year
Complaints filed with NHTSA by year for the 1991 GMC Sonoma. Recent trend: stable.
Don't negotiate blind — know what this car costs to own
Repair costs • Negotiation scripts • Mechanic checklist • Buy/skip verdict
Recall History (2 recalls)
FUEL SYSTEM, GASOLINE
CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURED FROM OCTOBER 18, 2005, THROUGH MARCH 21, 2006, SOLD FOR USE ON THE VEHICLES LISTED ABOVE AND ON CERTAIN SCHOOL BUSES. (TO SEE THE SCHOOL BUS ENGINE SIZES, CLICK ON "DOCUMENT SEARCH" AND THEN "BUS APPLICATIONS"). THE CONNECTOR ON THE FUEL FILTER WAS NOT MANUFACTURED TO HONEYWELL'S SPECIFICATION. AS A RESULT, THE O-RING MAY NOT SEAT CORRECTLY ON THE FUEL LINE.
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
VEHICLE DESCRIPTION: CERTAIN 4-WHEEL DRIVE PICKUP TRUCKS AND SPORT UTILITY VEHICLES EQUIPPED WITH ABS (ANTILOCK BRAKING SYSTEM) MANUFACTURED FROM SEPTEMBER 1989 THROUGH AUGUST 1996. UNDER CERTAIN DRIVING CONDITIONS THE SWITCH WHICH SIGNALS THE ABS SYSTEM WHETHER THE VEHICLE IS IN 2-WHEEL OR 4-WHEEL DRIVE CAN MALFUNCTION CAUSING INCREASED STOPPING DISTANCES DURING ABS STOPS WHILE IN THE TWO-WHEEL DRIVE MODE.
Recall severity analysis & seller scripts
The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.
NHTSA Defect Investigations (1)
All closed. Investigations are how NHTSA decides whether a defect needs a recall.
ABS BRAKING SYSTEM FAILS
SERVICE BRAKES, HYDRAULIC
The worst model year for the GMC Sonoma is the 1994 — worth knowing if you're cross-shopping years. The biggest problem area is accessories - interior.
1991 GMC Sonoma vs. Class Average (Small Pickup Trucks)
This vehicle
35
Class avg
38
Complaint volume is roughly in line with other small pickup trucks vehicles from 1991.
Complaint counts correlate with sales volume — popular vehicles naturally generate more reports. The full report normalizes for this.
About this data
NHTSA Complaints
Federal database of owner-filed safety complaints. 35 records for this vehicle.
NHTSA Recalls
Manufacturer-issued safety recalls. 2 recalls found for this vehicle.
Repair Cost Data
Real-world repair costs from owner reports and independent databases.
Last updated (checked October 30, 2026). NHTSA complaints received through October 28, 2026.
Other GMC Sonoma Model Years
View all GMC Sonoma years →1991 GMC Sonoma: Frequently Asked Questions
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Get the Full 1991 GMC Sonoma Report
10 sections of AI analysis based on 35 owner reports. Know before you buy.