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#BS-1999-GMCSON-1BB9

1999 Gmc Sonoma

Based on reports from 78 owners and 1 recall for this exact model.

Complaints
78
Crashes
6
Fires
3
Recalls
1
TSBs
95
🟡

Preliminary Verdict

Think Twice

Based on 78 complaints, 6 crashes, 3 fires, and 1 recalls.

See full verdict with buy/skip conditions

Top reported problems

1

gas pedal is hard to push initially

1 complaints • Severity 10/10

$X,XXX
2

inaccurate fuel gauge

1 complaints • Severity 6/10

$X,XXX
3

shifting failure

1 complaints • Severity 8/10

$X,XXX

Preview: What's in your full report

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Mechanic Inspection Checklist

!Check the Seats:front Assembly:reclinerHIGH

6 owners reported seats:front assembly:recliner issues — failures commonly reported around 55K miles.

!Inspect the Air Bags:frontalMED
Look for symptoms of wear and premature failure
+ 6 more items in full checklistUnlock

Failure Timeline by Mileage

2
0–30K
12
30–60K
3
60–90K
3
90–120K
2
120–150K
3
150K+

Peak failure range: 30–60K miles (12 reports) • Median: 55K miles

Full report: which components fail at each mileageUnlock

30,000-Mile Cost Projection

Best Case

$X,XXX

Most Likely

$X,XXX

Worst Case

$X,XXX

Top cost driver: Seats:front Assembly:recliner (6 reports).

Includes fuel costs, common repairs, and recall riskUnlock

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

10 sections total in the full reportUnlock all

Where the complaints fall

Seats:front Assembly:recliner6 (8%)
Air Bags:frontal4 (5%)
Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip4 (5%)
Power Train:automatic Transmission4 (5%)
Structure:body:tailgate:hinge And Attachments4 (5%)
Speed Control3 (4%)
Fuel System3 (4%)
Other3 (4%)

1999 Gmc Sonoma: Known Issues & Problem Areas

Seats:front Assembly:recliner Issues

Seats:front Assembly:recliner complaints account for 8% of all reports filed for the 1999 Gmc Sonoma, with 6 owners filing complaints with NHTSA. The median mileage at time of complaint is 55,000 miles, suggesting issues tend to surface around the 55K-mile mark.

Air Bags:frontal Issues

Air Bags:frontal complaints account for 5% of all reports filed for the 1999 Gmc Sonoma, with 4 owners filing complaints with NHTSA. Owners should pay attention to air bags:frontal-related symptoms during test drives and pre-purchase inspections.

Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip Issues

Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip complaints account for 5% of all reports filed for the 1999 Gmc Sonoma, with 4 owners filing complaints with NHTSA. Owners should pay attention to service brakes, hydraulic:antilock/traction control/electronic limited slip-related symptoms during test drives and pre-purchase inspections.

Power Train:automatic Transmission Issues

Power Train:automatic Transmission complaints account for 5% of all reports filed for the 1999 Gmc Sonoma, with 4 owners filing complaints with NHTSA. Owners should pay attention to power train:automatic transmission-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

11
00
14
01
8
02
6
03
6
04
7
05
5
06
1
07
2
09
1
11
1
13
2
15
2
17

Complaints filed with NHTSA by year for the 1999 Gmc Sonoma. Recent trend: stable.

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Repair costs • Negotiation scripts • Mechanic checklist • Buy/skip verdict

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Recall History (1 recall)

07E021000Apr 2007

FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES

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.

Recall severity analysis & seller scripts

The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.

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1999 Gmc Sonoma vs. Class Average (Small Pickup Trucks 2WD)

This vehicle

78

Class avg

78

Complaint volume is roughly in line with other small pickup trucks 2wd vehicles from 1999.

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. 78 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 1 recall found for this vehicle.

Repair Cost Data

Real-world repair costs from owner reports and independent databases.

Other Gmc Sonoma Model Years

2005200420032002200120001999199819971996199519941993199219911990198919881987198619851984
View all Gmc Sonoma years →

1999 Gmc Sonoma: Frequently Asked Questions

What is the most common problem with the 1999 Gmc Sonoma?
The most commonly reported issue with the 1999 Gmc Sonoma is related to the seats:front assembly:recliner, with 6 complaints filed with NHTSA.
Is the 1999 Gmc Sonoma reliable?
The 1999 Gmc Sonoma has 78 complaints, 6 crash reports, and 3 fire reports filed with NHTSA. The full report analyzes whether these numbers indicate real risk or are proportional to the vehicle’s popularity.
How much does it cost to fix 1999 Gmc Sonoma problems?
Repair costs vary by issue. The full BumperScan report includes detailed repair cost estimates (low/median/high) for every major issue, plus a 30,000-mile total cost of ownership projection.
Does the 1999 Gmc Sonoma have any recalls?
Yes, the 1999 Gmc Sonoma has 1 recall on record. The full report includes recall severity analysis and scripts for asking the seller about recall completion.
What mileage do Gmc Sonoma problems start?
Based on 25 complaints with mileage data, the median mileage at time of complaint is 55,000 miles. The highest concentration of reported issues occurs in the 30–60K mile range. The full report breaks down exactly which components fail at each mileage bracket.
What’s in the full report?
10 sections of AI analysis: severity-ranked issues, component scores (0-100), 30K-mile cost projection, failure timeline by mileage, recall details with seller scripts, owner sentiment analysis, mechanic checklist, buyer lot checklist, negotiation ammo with dollar figures, and a buy/skip verdict.
How is this different from free NHTSA data?
NHTSA gives you raw complaint text. BumperScan cross-references 2.1M+ complaints with community repair cost data, EPA fuel data, and recall records — then uses AI to synthesize it into actionable advice with dollar figures.
How is this different from Carfax?
Carfax is VIN-specific history ($45/report). BumperScan is model-level reliability intelligence — what problems this car is known for, what they cost, and whether you should buy it. Complementary, not competing.
What if the report isn’t useful?
100% money-back guarantee. If the report doesn’t help you make a more informed decision, we’ll refund you — no questions asked.
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10 sections of AI analysis based on 78 owner reports. Know before you buy.

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