Trim Report

GMC Sonoma SL1999

Includes:SONOMA|SL
$4,800
Starting From
6
Active Listings
—
Avg Mileage

Sourced from 6 dealer listings in the latest market snapshot as of

Min $4,800
Max $12,500
From $4,800
Fresh

SL Market Overview

All Trims Combined
From$6,500
$7K–$13K
4 listings87,500 avg miles
SL
From$4,800
6 listings|$5K–$13K
SLS
From$3,500
26 listings|$4K–$15K

1999 GMC Sonoma SL Pricing

Price Trend

Building price history...

Only 6 available nationwide.

Limited supply means limited chances. Get notified the moment new ones appear.

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Where to Find GMC Sonoma SL

Location data for all 1999 GMC Sonoma trims combined

13States

Delaware has the most inventory at 12%, with options spread across 13 states. Willing to ship? Your selection opens up significantly.

GMC Sonoma Safety & Reliability

Safety data for all 1999 GMC Sonoma trims

Elevated

Federal safety data shows 1 recalls and 83 complaints for the 1999 GMC Sonoma, a elevated safety profile overall. Check the known issues section below for the most common problem areas.

1
Recalls
83
Complaints
7
Crashes
1
Fires
Recall Findings
07E0210002007-12-03
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.

FUEL MAY LEAK, POSSIBLY RESULTING IN A FIRE.

View at NHTSA

Source: National Highway Traffic Safety Administration (NHTSA)

Top Complaint Areas

Of 83 issues reported over 1 model years, service brakes, hydraulic problems are the most common for the 1999 GMC Sonoma. A pre-purchase inspection should focus here first.

01Service Brakes, Hydraulic12
02Seats10
03Structure9
04Air Bags6
05Power Train6
83 total across 1 model years (1999–1999)Full data at NHTSA.gov
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GMC Sonoma Fuel Economy

EPA fuel economy data for all 1999 GMC Sonoma trims

16–23mpg combined
·
14-20city
·
19-26hwy
·
$2,950-$4,200/yr

The 1999 GMC Sonoma delivers 16 to 23 MPG combined across 6 powertrain combinations. If fuel cost matters to you, pay attention to engine and drivetrain. The spread is significant.

By Trim
Sonoma 2WD - Manual 5-spd
23mpg
2.2L 4-cyl · Rear-Wheel Drive
20 city26 hwy~$2,950/yr-1/10 Poor
Sonoma 2WD - Automatic 4-spd
19mpg
2.2L 4-cyl · Rear-Wheel Drive
17 city24 hwy~$3,550/yr-1/10 Poor
Sonoma 2WD - Manual 5-spd
18mpg
4.3L 6-cyl · Rear-Wheel Drive
15 city21 hwy~$3,750/yr-1/10 Poor
Sonoma 2WD - Automatic 4-spd
17mpg
4.3L 6-cyl · Rear-Wheel Drive
15 city20 hwy~$3,950/yr-1/10 Poor
Sonoma 4WD - Manual 5-spd
17mpg
4.3L 6-cyl · 4-Wheel or All-Wheel Drive
15 city20 hwy~$3,950/yr-1/10 Poor
Sonoma 4WD - Automatic 4-spd
16mpg
4.3L 6-cyl · 4-Wheel or All-Wheel Drive
14 city19 hwy~$4,200/yr-1/10 Poor

Source: U.S. Environmental Protection Agency (EPA)

SL Trim Buyer Questions

What to know about the 1999 GMC Sonoma SL

How does the SL compare to other GMC Sonoma trims?

Every GMC Sonoma trim targets a different buyer. The 1999 model page compares all available trims side by side.

What should I know about maintaining the 1999 GMC Sonoma SL?

The SL shares its core mechanicals with other GMC Sonoma trims, so major service intervals are similar. Watch for service brakes, hydraulic issues, the most commonly reported problem area. There are 1 recall to verify before purchase. The 1999 model page has the details.

What are the best years for the GMC Sonoma SL?

Check the price-to-mileage ratio for each GMC Sonoma SL year. The last year before a generation change is usually the most refined; the first year after is when resale drops fastest. The GMC Sonoma overview compares all years side by side.

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