Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 269 bulletins for PETERBILT
32-019
Feb 10, 2023
110000 ELECTRICAL SYSTEM
Fix As Fail a?? Chassis that were manufactured with certain battery cable routing brackets may experience rubbing or chafing of the battery cables.
01-082
Nov 18, 2022
130000 VISIBILITY
Certain model 389 chassis are experiencing freezing of the A/C evaporator or frosting of the compressor and suction line. A field resolution is available to solve this issue.
34-093
Nov 10, 2022
110000 ELECTRICAL SYSTEM
34-093 Model 389 78-inch Sleeper 12V Power Port Supplier Change
02-173
Nov 7, 2022
160000 STRUCTURE
Certain Model 579 chassis are able to have temporary chassis fairing latches updated to production-level fairing latches.
23-005
Oct 6, 2022
100000 POWER TRAIN
Clutch pedal linkage lubrication service interval information is missing from the Service manual for Model 365, 367, and 389 chassis.
14-043
Sep 9, 2022
020000 SUSPENSION
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
02-165
Aug 18, 2022
160000 STRUCTURE
Fix-As-Fail: Forces being applied to the split fender and fairing structure are causing the connection to crack and potentially separate. Reinforcement brackets secure the connection and prevent separation.
13-060
Aug 3, 2022
030000 BRAKES (PWS)
The service information for Bendix Air Dryer maintenance is being updated to include new procedures.
56-005
Aug 2, 2022
060000 ENGINE AND ENGINE COOLING
During PTO mode, the engine will not ramp up to the set RPM speed.
01-085
Jul 12, 2022
130000 VISIBILITY
Info Only a?? Certain 520 model chassis built between 2014 and 2021, and equipped with the Red Dot HVAC system, may have service port spacing which will not allow the connection of a pressure gauge to both the high and low side service port
E291
Jun 17, 2022
060000 ENGINE AND ENGINE COOLING
a??Non-Safety Campaign a?? The PACCAR MX-13 J2 engine harness may not be properly secured, resulting in potential wear of the wiring harness.
02-169
Jun 10, 2022
110000 ELECTRICAL SYSTEM
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
E287
May 13, 2022
060000 ENGINE AND ENGINE COOLING
Emissions Recall - Distance With MIL On and Distance Since DTC Cleared counters read zero when viewed in DAVIE4 (DM21). Slow or no response from PCI-2 when requesting freeze frame data using DAVIE4 (DM25).
E294
May 12, 2022
070000 FUEL SYSTEM, GASOLINE
Information Only - This bulletin is to provide information about the availability of a fuel filter set for Pre-Production or Validation level chassis. This fuel filter set is available directly from a PACCAR dealership parts department.
04-019
Apr 4, 2022
160000 STRUCTURE
A roof fairing reinforcement kit increases structural support for one-piece 579 roof fairings that are experiencing fatigue from external forces such as reverse towing.
TIB 98-020
Mar 18, 2022
350000 EQUIPMENT
Information Only a?? New Level 1 required tools are available to support MY21B MX engines.
13-057
Mar 3, 2022
030000 SERVICE BRAKES, HYDRAULIC
Fix-As-FailA a?? A hill start assist (HSA) valve plumbing revision eliminates ice buildup in the HSA valve exhaust in cold weather.A
34-090
Feb 4, 2022
110000 ELECTRICAL SYSTEM
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.
41-020
Feb 4, 2022
060000 ENGINE AND ENGINE COOLING
The Turbo Inlet Elbow is susceptible to tearing, potentially allowing dust to enter the engine. The Turbo Inlet Elbow will be replaced with an improved part.
22PBA
Feb 1, 2022
160000 STRUCTURE
Safety Recall a?? Chassis Fairings with integrated cab step may become loose, allowing minor unintended movement and risk of injury while entering and exiting the cab. The repair procedure and parts information will be added when parts are
21PBN
Jan 7, 2022
081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
21PBN a?? LNG/CNG Methane Detecti on System Will Not Warn Operator if System Loses Power a?? NHTSA ID:21V00N, TC: 2021-793
44-036
Dec 16, 2021
070000 FUEL SYSTEM, GASOLINE
Information Only: ??A?A?An improved procedure has been developed for servicing the fuel filter on model 348 chassis equipped with a PX-9 and 11 5/8??A?A? frame rails.
13-058
Dec 14, 2021
251000 ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)
Non-Safety CampaignA a?? Certain model 337 and 348 medium duty chassis were built with the ABS module installed incorrectly
34-091
Dec 6, 2021
110000 ELECTRICAL SYSTEM
Non-Safety CampaignA a?? An incorrectly set VECU software parameter is causing the running lamps to be inactive for certain, US registered, model year 2021 579 chassis. The parameter can be correctly set by reflashing the VECU A with update
21PBM
Dec 2, 2021
030000 SERVICE BRAKES, HYDRAULIC
??A?A?Safety Recall ??A?A? Work Brake May Unintentionally Disengage ??A?A? NHTSA ID: 21V906, TC: 2021-713. The work brake (also known as winch brake) may unintentionally disengage during winching operations, releasing the service brakes, in