Problems owners report
Complaints filed with NHTSA about the 2020 Western Star 4700, by the system named in each complaint. One complaint can name several.
- Service brakes1
- Engine1
- Forward collision avoidance1
- Electrical system1
- Steering1
NHTSA ODI complaints (public domain) · updated 23 Oct 2026 · 0 injuries and 1 deaths reported
Compared with other years
NHTSA ODI complaints by model year
Fatal crashes in the US
From 2020 to 2023, 11 2020 4700 vehicles were involved in crashes on US public roads in which someone died; 3 people died inside them, and 2 of the vehicles rolled over. This is a count, not a crash rate: it grows with the number of cars on the road.
NHTSA Fatality Analysis Reporting System (FARS), crash years 2020–2023 (public domain)
New York safety inspections
At its first New York inspection the 2020 Western Star 4700 failed the safety check 0.16% of the time — 87% less often than the average 2020 passenger car (1.18%). Median odometer at inspection: 59,175 miles.
NY DMV Vehicle Inspections (vezn-fmmk), initial inspections since Aug 2021 · how we count
Recalls in Canada
10 Transport Canada recalls for the 2020 Western Star 4700.
| 2022715 12 Dec 2022 | Tires Issue: Certain trucks were built with tires that are not approved for use with the truck's wheels. As a result, the tires may not perform properly, or a tire … |
| 2021756 13 Dec 2021 | Fuel System Issue: On certain trucks, the fuel tubes between the fuel rail and the injectors may crack and create a fuel leak. Note: This recall only affects trucks equ… |
| 2021706 17 Nov 2021 | Tires Issue: Certain trucks were built with tires that are not approved for use with the truck's wheels. As a result, the tires may not perform properly, or a tire … |
| 2021271 7 May 2021 | Fuel System Issue: On certain vehicles, the fuel rail assembly could develop a leak. Note: This recall only affects vehicles equipped with a Cummins L9 or ISX12 diesel … |
| 2021172 24 Mar 2021 | Electrical Issue: On certain trucks, an undersized wire in the ground circuit harness could overheat and melt a connector. If this happens, the engine may stall and you … |
| 2020551 12 Nov 2020 | Structure Issue: On certain trucks, the welds that attach the trailer hitch may crack due to improper welding. As a result, the hitch could detach from the truck while … |
| 2020217 18 May 2020 | Electrical Issue: On certain trucks, an undersized wire in the ground circuit harness could overheat and melt a connector. If this happens, the engine may stall and you … |
| 2020086 3 Mar 2020 | Brakes Issue: On certain trucks equipped with air disc brakes, the brake caliper mounting bolts may not be properly tightened. This could cause the caliper bolts to … |
| 2019539 25 Oct 2019 | Steering Issue: On certain trucks, the steering shaft assembly may not have been installed correctly. This could cause a loss of connection between the steering wheel … |
| 2019499 4 Oct 2019 | Lights And Instruments Issue: On certain trucks, the warning indicator for low air brake pressure shows “BRAKE AIR” instead of a low brake pressure symbol. Recent changes to Canadian… |
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada
Recalls
Daimler Trucks North America, LLC (DTNA) is recalling certain 2020-2023 Freightliner 114SD, 2023 Freightliner 122SD, 2020 Western Star 4700, 2019-2022 Western Star 4900, 2019-2023 Freightliner Business Class M2, and 2021 Freightliner Cascadia vehicles. The vehicles are equipped with tires that are not compatible with their 8.25-inch rims. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 120, "Wheels and Rims-Other Than Passenger Cars."
Daimler Trucks North America, LLC (DTNA) is recalling certain 2020 Freightliner Cascadia, 2020-2022 Western Star 4700 and 5700, 2022 Western Star 4900, and 2020-2023 Freightliner New Cascadia vehicles. The Gross Axle Weight Rating (GAWR) listed on the Federal Certification Label is incorrect, which can allow the vehicle to be overloaded. As such, these vehicles fail to comply with the requirements of 49 CFR Part 567, "Certification."
Daimler Trucks North America, LLC (DTNA) is recalling certain 2020-2022 Western Star 4700, 2019-2022 Freightliner 114SD, 2021-2022 Western Star 49X, Freightliner Cascadia P4, 2022 Western Star 47X, 2021 Western Star WF110, 2020 Western Star WJ121, and 2019-2021 FCCC XCP Chassis vehicles. The fuel tubes between the fuel rail and the injectors for cylinders four, five, and six may fatigue and crack, which can result in a high pressure fuel leak.
Daimler Trucks North America, LLC (DTNA) is recalling certain 2012-2021 Freightliner SD 108, Freightliner SD 114, 2016-2020 Freightliner Coronado, 2013 Western Star 6900, 2013-2022 Western Star 4700, Western Star 4900, and 2022 49X vehicles. The tires and rims are not approved and rated for these vehicles from the Tire and Rim Association or tire manufacturer. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 120, "Wheels and Rims-Other Than Passenger Cars."
Daimler Trucks North America, LLC (DTNA) is recalling certain 2018-2021 Freightliner Custom Chass XC Chassis, 108SD, Custom Chass XB Chassis, Business Class M2, 114SD, and Western Star 4700 vehicles. The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.
Daimler Trucks North America, LLC (DTNA) is recalling certain 2019-2021 Western Star 4700 and Western Star 5700 vehicles. The ground harness wiring may be undersized and may cause a connector to melt.
Daimler Trucks North America LLC (DTNA) is recalling certain 2020-2021 Western Star 4700 and 4900 and Freightliner Coronado, 108SD and 114SD vehicles. The vehicle certification label contains incorrect information, stating a Gross Axle Weight Rating (GAWR) that exceeds the tire capacity rating. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 120, "Wheels and Rims-Other than passenger cars."
Daimler Truckers North America LLC (DTNA) is recalling certain 2020-2021 Freightliner 114SD, 122SD and Western Star 4700, and 4900 vehicles equipped with certain SL2065 steerable lift axles. The lower rear pivot cap screws may not be long enough to sufficiently engage the locking feature of the corresponding nuts.
Daimler Trucks North America LLC (DTNA) is recalling certain 2019-2021 Western Star 4700 and 5700 vehicles. A particular wire in the ground harness may be undersized, possibly resulting in a melted connector in the ground circuit harness. If the connector becomes damaged, under certain circumstances, the engine may stall without the ability to restart.
Daimler Trucks North America LLC (DTNA) is recalling certain 2020 Freightliner 108SD and 2020-2021 Freightliner Coronado, 114SD, and Western Star 4700 and 4900 vehicles. The Gross Axle Weight Rating (GAWR) on the certification label may be incorrect, possibly resulting in the vehicle being overloaded. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 120, "Wheels and Rims - Other Than Passenger Cars."
Daimler Trucks North America LLC (DTNA) is recalling certain 2019-2020 Freightliner 108SD, 114SD, Cascadia, Business Class M2, Western Star 4700 and 5700, Freightliner Custom Chassis S2, Custom Chassis XB, and Custom Chassis XC vehicles equipped with air disc brakes. The brake caliper mounting bolts may have been insufficiently tightened.
Daimler Trucks North America LLC (DTNA) is recalling certain 2020 Western Star 4700 vehicles. The steering shaft may have been improperly installed, potentially causing a loss of connection between the steering wheel and front axle wheels.
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What Western Star told its dealers about the 2020 Western Star 4700: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 11011082 | CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check. |
| 11011076 | Warranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair Time Updates |
| 11010186 | CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check. |
| 11010143 | Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines |
| 11008508 | Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines |
| 11007517 | CX Advocate for ConMet Oil Pan Insert Additional Failures |
| 11005500 | CX Advocate for NOx conversion low faults. Update to CXA 6_24_NOx submission. |
| 11005494 | CX Advocate for ConMet Oil Pan Insert Additional Failures |
| 11003924 | CX Advocate communication for clutch bolts |
| 11003889 | CX Advocate communication for NOx conversion low faults |
| 11001976 | Customer letter regarding variable speed water pump. |
| 11000986 | Service Solution for Thread Spring Pin Suspension Alignment & Installation |
| 11000984 | Service Solution for DEF Pump Wiring for Cummins CM2450 Engine Controller |
| 11000978 | Technical Service Bulletin for New Final Drive Over Heat Diagnostic |
| 10253879 | Service Solution for DEF Pump Wiring for Cummins CM2450 Engine Controller |
| 10251202 | Important Campaign Information letter for FL974 - Revised Bulletin & Population |
| 10251200 | Revised Emissions Recall: Cummins DEF Sensor Shortage. REVISION: Some vehicles formerly in Group F have been moved to Group G and have been assigned a new part number as specified in Table 1. An SRT for 'Calibration Code Only: Update or Confirm' has been added, as shown in Table 2, to be used when a new DEF header is not required. There have been some other minor changes to the work instructions and SRT times. |
| 10249516 | Emissions Recall: Cummins DEF Sensor Shortage |
| 10214907 | Updated Western Star Service Bulletin for HVAC Actuator Replacement |
| 10213225 | Western Star Service Bulletin for HVAC Actuator Replacement. The wiring harness of the actuator of the fresh air recirculation door on Western Star vehicles equipped with Red Dot HVAC systems should be inspected for signs of water intrusion and corrosion. |
| 10208391 | Western Star Service Bulletin for DEF Connector Reinforcement Caps |
| 10207520 | Revised Western Star Service Bulletin for Pana-Pacific 540 Radio Controls Not Operating Normally. Minor note: added an update of document previously submitted. The related VMRS codes are added |
| 10207507 | Revised Western Star Service Bulletin for Drive Line Vibration. Minor note: added an update of document previously submitted. The related VMRS codes are added |
| 10205885 | HVAC Actuator Wiring Harness. Revision History: Service kit part number changed from RDH RD5 17147 0 to WWS RD-3-9069-0 on 12/9/21. The wiring harness of the actuator of the fresh air recirculation door, shown in Fig. 1, on Western Star vehicles equipped with Red Dot HVAC systems should be inspected for signs of water intrusion and corrosion. |
| 10202728 | SF626 Western Star Window Replacement Inspection Notification. This letter is to inform you that Field Service Campaign SF626 Western Star Window Replacement Inspection Notification campaign was released. |
NHTSA manufacturer communications (public domain)