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Peterbilt 579Model year report

2018 Peterbilt 579 Problems

Complaints
7filed with NHTSA
Median mileage
36,375miles, 3 complaints with mileage
Recalls
14campaigns on record
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

Sources: NHTSA records for the 2018 Peterbilt 579 (complaints, recalls, investigations). Report an error

NHTSA recorded 7 consumer complaints for the 2018 Peterbilt 579. The part named most often is electrical system, with 4 complaints (57% of the total), followed by brakes (3) and steering (2). 3 of the complaints include a mileage, and 67% of those were filed for vehicles with under 50,000 miles; the median is 36,375 miles. Of all complaints, 2 a fire, according to the filers. NHTSA lists 14 recall campaigns and 91 technical service bulletins for this model year. Electrical system complaints overlap with 3 recall campaigns covering the cables and 31 technical service bulletins filed under the same part. Brakes complaints overlap with 1 recall campaign covering the abs warning light and 6 technical service bulletins filed under the same part.

This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Example complaints

Electrical system: “The main electrical harness coming out of the main computer and running the entire span underneath the cab had little to no protective sheathing/cord wrap/aluminum wrap protecting the wires. The harness is routed through a u-bolt type flange as well as hangs near several metal parts that, while in motion, rub against the wires causing them to fray. This in turn caused several items to begin to short out and also caused numerous wires to heat up and melt. It was discovered when the drivers side headlight failed and the same side running lights came on and stayed on. …”

NHTSA complaint #11184671, filed 2019-03, 60,000 miles

Brakes: “Bendix wingman collision mitigation system, this system as am trying to brake the vehicle determined that the vehicle in front was closer than it really was and locked the brakes and steering, at such time the driver looses control of the vehicle completely, this was the fourth time it did this, the third time it locked the brakes I was trying to brake while a car was driving out of a driveway, second time I was trying to pass a car and it detected the car to close and locked the brakes, first time bumper to bumper it was raining, on a highway a vehicle cut in front of me tried to apply the…”

NHTSA complaint #11202730, filed 2019-04, 20,000 miles

Steering: “Front axle begins popping and making metal to metal noises when hitting bumps and or turning. We took it to the shop and they found the nuts to the U-bolts that hold the leaf springs to the front axle had begun backing off and were out of torque spec. Upon receiving the truck back the front end no longer made this noise. Approximately 8 months later we are hearing the same metal on metal and popping noises that we heard previously. We have also noticed similar year Peterbilt 579's with this same noise and popping so this isn't specific to our vehicle.”

NHTSA complaint #11522814, filed 2023-05

Engine: “This vehicle about 6-8 weeks ago started throwing codes for all systems above (over 100 codes). This issue affected all systems of the vehicle including but not limited to the speed and braking of the vehicle, plus the fuel system and adaptive driving systems. We took it to the dealer Performance Peterbilt in Tifton, GA. They cleared the codes and said they resolved it by replacing a NOX sensor. We left the repair shop and within 50-100 miles the exact same issue started up again. …”

NHTSA complaint #11624162, filed 2024-11

Mileage when problems were reported

67% of the 3 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 20,000 and 60,000 miles.

0%0–1033%10–2533%25–5033%50–750%75–1000%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (3 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 36,375 miles.

Complaints by year filed

Fewer than 15 complaints, too few for a reliable trend.

2019220202023202422025
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Recalls and investigations

See all 14 recalls for the 2018 Peterbilt 579 → · Check a VIN at nhtsa.gov/recalls

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 91 on record; the latest 10 are shown.

See all 91 bulletins →

Other model years of the Peterbilt 579

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
20227220,53615———Not enough data
20205264,7866———Not enough data
2018736,37514———Not enough data

All Peterbilt 579 model years

Frequently asked questions

How many NHTSA complaints does the 2018 Peterbilt 579 have?

NHTSA recorded 7 consumer complaints for the 2018 Peterbilt 579 as of Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2018 Peterbilt 579 is reported most often?

Electrical system is named most often, in 4 complaints (57% of the total), followed by brakes with 3.

Has the 2018 Peterbilt 579 been recalled?

NHTSA lists 14 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

At what mileage are problems with the 2018 Peterbilt 579 reported?

Among the 3 complaints that include a mileage, the median is 36,375 miles and the middle half falls between 20,000 and 60,000 miles; 67% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.