Complaints over time
Complaints about the 2020 Peterbilt 365 peaked in 2021, with 1 filed
Owner complaints about this model year, by the year they were filed with NHTSA.
Source: NHTSA ODI complaints file. The lighter column runs through October.
Model year
2020 Peterbilt 365
Truck, diesel, 6x4. Owner complaints on file from Jun 23, 2021 to Jun 23, 2021.
Recall campaigns covering this model year455k vehicles or units across those campaigns
Owner complaints1Close to the median 2020 truck
Severity index0.02020 trucks average 3.5
First 24 months1Complaints in its first two years
Components
100% of complaints about the 2020 Peterbilt 365 name engine and cooling
Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.
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 2020 Peterbilt 365
Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.
| Campaign | Filed | Subject | Component | Vehicles | Remedy |
|---|---|---|---|---|---|
| 22V-277 | Apr 25, 2022 | Dana D-Series axle steer arm fasteners that attach the steering arm to the steering knuckle may fail | Steering | 17,641 | Part replacement |
| 21V-391 | May 26, 2021 | Sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak | Fuel system | 612 | Part replacement |
| 20V-506 | Aug 26, 2020 | Axles may have lower rear pivot bolts that are not long enough to sufficiently engage the locking feature of the corresponding nuts | Powertrain | 1,097 | Part replacement |
| 20V-130 | Mar 4, 2020 | Positive battery jumper terminal cable may be too long, allowing it to chafe against the left front suspension spring and result in an electrical… | Electrical system | 35,671 | Part replacement |
Source: NHTSA ODI recalls file.
Owner complaints
What owners reported about the 2020 Peterbilt 365
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.
1 complaint on file, page 1 of 1.
- Filed Jun 23, 2021Failure Jun 15, 2021Houston, TXUrea injection system (def)
THE ENGINE AFTERTREATMENT DEF FLUID SENSOR IN THE DEF TANK FAILS - SETTING A STOP ENGINE ERROR CODE THAT SHUTS THE TRUCK DOWN, RESULTING IN AN INOPERATABLE VEHICLE ON THE ROAD. ONLY WAY TO MOVE THE TRUCK IS WITH A WRECKER. DANGER TO DRIVER AND SURROUNDING VEHICLES. PART HAS A KNOWN DEFECT AND IS IN ALLOTMENT MODE THROUGH DEALERS.
NHTSA complaint 11422061
Source: NHTSA ODI complaints file.
Investigations
NHTSA has not opened an investigation on this model year
Source: NHTSA ODI investigations file.
Service bulletins
49 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." - 43-088 Aug 13, 2026 · Service Bulletin/Repair Instructions
The procedure has been updated to include additional steps for verifying the software level on the vehicle electronic control unit (VECU2) and digital display (DD). Steps have also been added to the PACCAR Common Rail Injection 2 (PCI2) software verification. - E311 Jul 25, 2026 · Service Bulletin/Repair Instructions
105 chassis have been removed from the chassis list and unflagged in PRWS due to expiration of applicable warranty coverage. Total chassis population is 732. - 43-088 Jul 21, 2026 · Service Bulletin/Repair Instructions
This optional software update is now available for chassis equipped with EMY 2021B-2023 PACCAR MX-11 and MX-13 engines. This update provides customers with additional time to service their trucks before a DEF-related derate occurs. The software is being off… - E311 Jul 10, 2026 · Service Bulletin/Repair Instructions
The Condition, Chassis Affected, Service Action, Warranty, and Procedure sections have been updated to include the latest prognostics bulletin verbiage. - 43-088 Jul 7, 2026 · Service Bulletin/Repair Instructions
"The software is not yet available. The bulletin will be updated when more information is available." - 43-088 Jun 29, 2026 · Service Bulletin/Repair Instructions
"An optional software update will be available on 07/06/2026 for chassis equipped with EMY 2021B-2023PACCAR MX-11 and MX-13 engines. This update provides customers with additional time to service theirtrucks before a DEF-related derate occurs. The software … - 45-070 Apr 17, 2026 · Service Bulletin/Repair Instructions
The attached procedures document has been updated with more detail and explanations. This is not a stand-alone procedure. Cummins Quickserve troubleshooting will specify the use of these procedures while troubleshooting specific fault codes. - 45-070 Jan 31, 2026 · Service Bulletin/Repair Instructions
Procedure pictures updated for clarity. When troubleshooting Cummins X15 fault codes 555 or 556, follow this additional testing, inspection, and documentation procedure to help identify the root cause of dusted engines. This is not a stand-alone process bu… - E311 Aug 20, 2025 · Other
Condition, Chassis Affected, and Warranty sections updated with the following verbiage “E311 must be flagged and open in Service Information Record (SIR) at the time of RO open date to qualify.” Also, “Through Standard Warranty or any applicable active Exte… - T016 / 26-040 May 22, 2025 · Service Bulletin/Repair Instructions
T016: Warranty section updated to include 0.5 hours for test drive. Recommended Repair T016C has been updated from 6.4 hours to 6.9 hours. SRT codes updated in PRWS Claim Coding Table: B25-17A for 6.9 hours created to replace all other codes. 26-040: Warra… - 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… - 02-194 Nov 11, 2024 · Service Bulletin/Repair Instructions
Fix-As-Fail The window switch fails prematurely due to excessive amperage flowing through the window switch circuit. A new door harness design has been developed to prevent failures. Fix-As-Fail start date is 11/11/2024. - 7-700 Oct 22, 2024 · Warranty Program/Extension
7/700 Service Agreement - Letter Only. - 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… - 32-019 Feb 10, 2023 · Service Bulletin/Repair Instructions
Fix As Fail – Chassis that were manufactured with certain battery cable routing brackets may experience rubbing or chafing of the battery cables. - 23-005 Oct 6, 2022 · Service Bulletin/Repair Instructions
Clutch pedal linkage lubrication service interval information is missing from the Service manual for Model 365, 367, and 389 chassis. - 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… - 13-060 Aug 3, 2022 · Service Bulletin/Repair Instructions
The service information for Bendix Air Dryer maintenance is being updated to include new procedures. - 56-005 Aug 2, 2022 · Service Bulletin/Repair Instructions
During PTO mode, the engine will not ramp up to the set RPM speed. - 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. - 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… - 34-090 Feb 4, 2022 · Service Bulletin/Repair Instructions
A frame mounted left-hand marker light bracket interferes with the rear fuel tank fill location. A redesigned bracket can be purchased that relocates the marker bracket to the front fuel tank bracket to eliminate interference. - R2103 Jan 10, 2022 · Service Bulletin/Repair Instructions
Retrofit - The emissions exemption will be expiring on 5/15/2022 for certain pre-production vehicles equipped with PACCAR MX-11 and MX-13 EPA 2021 Emissions engines. Production-level components are now available to make these vehicles compliant. - 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… - 52-004 Jul 19, 2021 · Service Bulletin/Repair Instructions
Fix-as-Fail: Radio does not mute when truck with auto trans is placed in reverse. Software flash resolves issue. - 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… - 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. - 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… - 14-027 Sep 25, 2020 · Service Bulletin/Repair Instructions
Information only: In 2020, Peterbilt and Kenworth began using the same M10, M12, M16, and M20 frame fasteners on all vehicles. Torque specifications for these fasteners are different from previous fasteners. - 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… - 13-054 Jul 29, 2020 · Service Bulletin/Repair Instructions
Fix-As-Fail - Bendix New-Gen Lightweight Steer Axle Drum Brake Spider Cracking - 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… - 11-001 May 29, 2020 · Service Bulletin/Repair Instructions
Information only: Hendrickson Softek front axle maintenance intervals and requirements. - 20PBA Apr 17, 2020 · Service Bulletin/Repair Instructions
"Safety Recall: NHTSA recall number is 20V130. A defect, which relates to motor vehicle safety, may exist in certain Model 365, 389, 567, and 579 vehicles manufactured between April 18, 2014 and March 09, 2020 with a left-hand under hood jumper start term… - 20PBA Mar 31, 2020 · Service Bulletin/Repair Instructions
Safety Recall Interim Bulletin: Peterbilt has decided that a defect, which relates to motor vehicle safety, may exist in certain Model 365, 389, 567, and 579 vehicles manufactured between April 18, 2014 and September 30, 2019 with a left-hand under hood jum… - 32-016 Mar 17, 2020 · Service Bulletin/Repair Instructions
Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage. - 03-071 Dec 18, 2019 · Service Bulletin/Repair Instructions
Information Only - Vehicles built with NAMUX software from 2013 to present may experience accuracy issues with the tachometer. The issue can be temporarily resolved using any one of the included procedures. - 01-075 Nov 6, 2019 · Service Bulletin/Repair Instructions
Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the A/C compressor. - 16-041 Sep 27, 2019 · Service Bulletin/Repair Instructions
Non Safety Campaign: Peterbilt has determined that certain Model 365, 384, 386, 388, 389, 3895, 587 and 579 vehicles built between March 27, 2012 and January 20, 2019 with Flex Air suspension in a 6x2 configuration have U-bolts that may fail prematurely. - 15-028 Sep 25, 2019 · Service Bulletin/Repair Instructions
Non Safety Campaign: Peterbilt has determined that certain model 365, 367, and 389 vehicles, built between 08/09/19 and 08/20/19 may have a steering column tilt cable that is not properly routed through a cushion clamp. This can result in contact with the… - TIB43-062 Sep 27, 2019 · Service Bulletin/Repair Instructions
Information Only â“ This bulletin provides information about the California Air Resources Board (CARB) Periodic Smoke Inspection Program (PSIP) and Heavy Duty Vehicle Inspection Program (HDVIP). - 42-056 Aug 28, 2019 · Service Bulletin/Repair Instructions
Fix-As-Fail -“ Composite fittings used in the cooling system may crack, resulting in coolant leaks. Brass fittings are available to replace the composite fittings. - 42-058 Aug 23, 2019 · Service Bulletin/Repair Instructions
Fix-As-Fail: Two separate causes have been identified as root cause of intermittent low coolant indicator illumination. - 34-066 Jun 10, 2019 · Service Bulletin/Repair Instructions
Information Only - Quick Reference Guide for Electric harness damage repairs. - 43-060 May 3, 2019 · Service Bulletin/Repair Instructions
Non-Safety Campaign - Certain chassis equipped with certain Goodyear tires received a Greenhouse Gas (GHG) label that does not reference the correct tire emissions identifier related to new rolling resistance data.
Source: NHTSA manufacturer communications files.