AutoStatsIQ
Data through Oct 2026
Model year

2021 Peterbilt 348

Body and fuel not decoded. Owner complaints on file from no date to no date.

Recalls (4)Complaints (0)Investigations (0)Bulletins (26)
Recall campaigns covering this model year4222k vehicles or units across those campaigns
Owner complaints0Not enough peers on file
Severity indexNoneCrash, fire, injury or death per 100
First 24 months0Complaints in its first two years
Complaints over time

Complaints about the 2021 Peterbilt 348 by year filed

Owner complaints about this model year, by the year they were filed with NHTSA.

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Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

Complaints by component

Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.

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Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

4 recall campaigns cover the 2021 Peterbilt 348

Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.

Recall campaigns for the 2021 Peterbilt 348
CampaignFiledSubjectComponentVehiclesRemedy
24V-915Dec 9, 2024Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop functioningElectrical system220,764Software update
21V-391May 26, 2021Sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leakFuel system612Part replacement
21V-328May 10, 2021Spring brake chamber may have been assembled with incorrect springs that were out of specification, which may cause the pressure plate to shiftBrakes13Part replacement
20V-506Aug 26, 2020Axles may have lower rear pivot bolts that are not long enough to sufficiently engage the locking feature of the corresponding nutsPowertrain1,097Part replacement
Source: NHTSA ODI recalls file.
Look up a VIN at NHTSA
Owner complaints

What owners reported about the 2021 Peterbilt 348

The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.

0 complaints on file.

    Source: NHTSA ODI complaints file.
    Investigations

    NHTSA has not opened an investigation on this model year

    Source: NHTSA ODI investigations file.
    All investigations
    Service bulletins

    26 manufacturer communications cover this model year

    Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall.

    • P001 Sep 11, 2026 · Service Bulletin/Repair Instructions
      "Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes. 2 chassis added to the chassis list. Peterbilt: Dealers should check the chassis list and SIR weekly for VIN changes. 10 chassis added to the chassis list."
    • 24KWL/PBL Aug 13, 2026 · Service Bulletin/Repair Instructions
      The verbiage in the Introduction section has been updated.
    • 24PBL Jan 10, 2025 · Service Bulletin/Repair Instructions
      Safety Recall Updated software and procedures are now available. Certain Vehicle Model Year 2021-2025 Peterbilt chassis configured for trailer towing require a software update for the Bendix EC80 ABS ECU. Software update procedures for certain Battery-Elect…
    • 32-025 Nov 22, 2024 · Service Bulletin/Repair Instructions
      Info Only Unnecessary starter replacements can result from customer complaints regarding engine starting issues. A new Starter Troubleshooting Guide has been created to provide a comprehensive list of starting system checks, which should reduce unnecessary…
    • 16-044 Jul 30, 2024 · Service Bulletin/Repair Instructions
      Fix As Fail The height control valve (HCV) rod on vehicles with low air leaf suspensions is prone to toggling over center during rough road conditions. With full suspension articulation, HCV bracket flexes and toggles over center the HCV linkage, which res…
    • R2105 Feb 14, 2024 · Service Bulletin/Repair Instructions
      Peterbilt has determined that certain model year 2021, pre-production chassis are eligible to have specific parts updated to production level.
    • 45-064 Oct 18, 2022 · Service Bulletin/Repair Instructions
      Info Only - PACCAR is introducing Over-the-Air (OTA) software updates for engine MY17 and newer chassis equipped with Cummins X15, X12, ISX12, ISX12N, L9N, PX-7, and PX-9 engines The technology will leverage the existing Remote Diagnostic cs hardware to del…
    • 14-043 Sep 9, 2022 · Service Bulletin/Repair Instructions
      Fix-As-Fail On certain chassis with Low Air Leaf Suspension or Low-Low Air Leaf Suspension, the Height Control Valve (HCV) arm may be rubbing on other components when the bend in the arm is facing outboard. Flipping the bend in the HCV arm inboard prevents …
    • 13-060 Aug 3, 2022 · Service Bulletin/Repair Instructions
      The service information for Bendix Air Dryer maintenance is being updated to include new procedures.
    • 02-169 Jun 10, 2022 · Service Bulletin/Repair Instructions
      Info Only - Chassis equipped with a flush mounted battery box between the frame rails, and containing 3 batteries, may experience battery movement on the side where the single battery resides. This bulletin contains a procedure to fabricate a bracket to hol…
    • 13-057 Mar 3, 2022 · Service Bulletin/Repair Instructions
      Fix-As-Fail ⓠA hill start assist (HSA) valve plumbing revision eliminates ice buildup in the HSA valve exhaust in cold weather.Â
    • 51-013 Feb 4, 2022 · Service Bulletin/Repair Instructions
      Due to major data carriers phasing out 3G networks, chassis currently utilizing first generation Peoplenet Mobile Gateway (PMG001) will experience severe 3G service degradation as early as January of 2022. Chassis currently utilizing 3G antennas as a primar…
    • 13-058 Dec 14, 2021 · Service Bulletin/Repair Instructions
      Non-Safety Campaign – Certain model 337 and 348 medium duty chassis were built with the ABS module installed incorrectly
    • 44-036 Dec 16, 2021 · Service Bulletin/Repair Instructions
      Information Only: âAn improved procedure has been developed for servicing the fuel filter on model 348 chassis equipped with a PX-9 and 11 5/8â frame rails.
    • E282 Dec 17, 2021 · Service Bulletin/Repair Instructions
      Information Only: Due to differences between the PACCAR MX-11 or MX-13 2021A and 2021B engines, technicians must be able to identify which of these engines are in a chassis.
    • 43-071 Sep 21, 2021 · Service Bulletin/Repair Instructions
      Fix-As-Fail – Due to undersupply issues, only a limited supply of Diesel Exhaust Fluid (DEF) sensors are available. As a temporary solution, after PACCAR confirms a DEF sensor is not available, a temporary software update will allow a vehicle to continue op…
    • 02-168 Sep 20, 2021 · Service Bulletin/Repair Instructions
      Information Only - Rear axle Quarter Fenders with less than two inches of clearance between the top of the quarter fender and the bottom of the trailer/equipment are susceptible to damage. The lack of clearance could result in cracked/broken quarter fenders…
    • 21-PBD Jun 22, 2021 · Service Bulletin/Repair Instructions
      Safety Recall – Cummins Fuel Rail Leak – NHTSA ID: 21V391 / TC: 2021-323, Cummins Recall: C2423. Cummins PX9 and ISX12 fuel rails may leak around a sealing washer, potentially resulting in fuel leaks. Undetected prolonged diesel fuel spray in the presence o…
    • 15-029 May 27, 2021 · Service Bulletin/Repair Instructions
      Information Only - Power steering reservoir cap may separate during removal when it is pulled upward instead of twisted.
    • 02-160 Feb 10, 2021 · Service Bulletin/Repair Instructions
      Information Only – Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
    • 116-1 Jul 13, 2016 · Service Bulletin/Repair Instructions
      SmartNav 2.0 Hardware retrofit for quality validation and vehicle validation units.
    • 13-055 Oct 1, 2020 · Service Bulletin/Repair Instructions
      Fix as Fail: Peterbilt has introduced an improved mounting bracket for low mount air tanks for vehicles built between January 01, 2017 and July 06, 2020. Torsional vibration may stress the currently-installed brackets and cause them to fail near the bottom…
    • 20PBE Sep 16, 2020 · Service Bulletin/Repair Instructions
      Safety Recall: Peterbilt has decided that a condition could exist in certain model 348, 365, 367, 389, 520, and 567 vehicles built between 11/19/2019 and 4/09/2020. Vehicles equipped with Watson & Chalin SL2065 lift axles may have lower rear pivot bolts th…
    • 02-158 Aug 25, 2020 · Service Bulletin/Repair Instructions
      Fix as Fail: Peterbilt has determined that certain model 348, 365, 367, 382, 384, 386, 388, 389, 567, 579, and 587 trucks, built between 4/13/2010 and 3/16/2020 and equipped with a flush mounted battery box, utilized rubber washers that could rub through a…
    • 32-015 Jun 8, 2020 · Service Bulletin/Repair Instructions
      Information Only: This bulletin provides dealers with a battery warranty quick reference guide to ensure the appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplete information.
    • 43-067 Jun 10, 2020 · Service Bulletin/Repair Instructions
      Fix as Fail: For all conventional models, except 387/587, equipped with Side-of-Cab (“SOC”) exhaust and built from 03/6/2006 to 1/20/2020, the clamps that secure the SOC exhaust stacks may not be tightened properly. This may allow the exhaust stack to rota…
    Source: NHTSA manufacturer communications files.
    About service bulletins