2025 KENWORTH L770 — Problems, Recalls & Safety Data
N/A
Safety Rating
0
Owner Complaints
4
Recalls
1
Service Bulletin
0
Investigations
Overview of the 2025 KENWORTH L770
The 2025 KENWORTH L770 has received a total of 0 safety complaints filed with the National Highway Traffic Safety Administration (NHTSA). There have been 10 recall campaigns affecting this vehicle, covering issues with EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE, STEERING:LINKAGES:TIE ROD ASSEMBLY. 1 technical service bulletin have been issued by PACCAR Incorporated for this model year.
Recalls for the 2025 KENWORTH L770
NHTSA has recorded 10 recalls for the 2025 KENWORTH L770, potentially affecting up to 223,999 vehicles.
Recall 25V436000 — EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE
| 56,260 vehicles affected
Defect: PACCAR Incorporated (PACCAR) is recalling certain 2024-2026 Kenworth T480, T680, T880, W990, Peterbilt 520, 536, 537, 548, 567, 579, 589, 2025 Kenworth T180, Peterbilt 535, 2025-2026 Kenworth T280, T380 and L770 vehicles. The tail brake light, upper and lower beam headlights, reverse light, and turn signal may not illuminate as intended. In addition, the lift axles, if lowered, may revert...
Consequence: Delayed and unsteady headlights can result in insufficient illumination of the road, decreasing the driver's visibility and increasing the risk of a crash. In addition, an unexpected position change of the lift axles may increase the risk of injury.
Remedy: Dealers will update the VCU software, free of charge. Owner letters were mailed August 19, 2025. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 25PACF.
View full details →Recall 24V433000 — STEERING:LINKAGES:TIE ROD ASSEMBLY
| 7,410 vehicles affected
Defect: PACCAR Incorporated (PACCAR) is recalling certain 2025 Kenworth K270, K370, L770, T280, T380, T480, T680, T880, W900, W990, 2025 Peterbilt 220, 520, 536, 537, 548, 567, 579, and 589 trucks. The tie rod or drag link assembly may contain an improperly heat-treated ball stud, causing the ball stud to break.
Consequence: A broken ball stud can cause a complete loss of steering control, increasing the risk of a crash.
Remedy: Owners are advised not to drive their vehicles until the remedy has been completed. Dealers will inspect and replace the tie rod and drag link assemblies as necessary, free of charge. Owner notification letters were mailed August 6, 2024. Owners...
View full details →Recall 24V433000 — STEERING:LINKAGES:TIE ROD ASSEMBLY
| 7,410 vehicles affected
Defect: PACCAR Incorporated (PACCAR) is recalling certain 2025 Kenworth K270, K370, L770, T280, T380, T480, T680, T880, W900, W990, 2025 Peterbilt 220, 520, 536, 537, 548, 567, 579, and 589 trucks. The tie rod or drag link assembly may contain an improperly heat-treated ball stud, causing the ball stud to break.
Consequence: A broken ball stud can cause a complete loss of steering control, increasing the risk of a crash.
Remedy: Owners are advised not to drive their vehicles until the remedy has been completed. Dealers will inspect and replace the tie rod and drag link assemblies as necessary, free of charge. Owner notification letters were mailed August 6, 2024. Owners...
View full details →Recall 24V433000 — STEERING:LINKAGES:DRAG:LINK:CONNECTION
| 7,410 vehicles affected
Defect: PACCAR Incorporated (PACCAR) is recalling certain 2025 Kenworth K270, K370, L770, T280, T380, T480, T680, T880, W900, W990, 2025 Peterbilt 220, 520, 536, 537, 548, 567, 579, and 589 trucks. The tie rod or drag link assembly may contain an improperly heat-treated ball stud, causing the ball stud to break.
Consequence: A broken ball stud can cause a complete loss of steering control, increasing the risk of a crash.
Remedy: Owners are advised not to drive their vehicles until the remedy has been completed. Dealers will inspect and replace the tie rod and drag link assemblies as necessary, free of charge. Owner notification letters were mailed August 6, 2024. Owners...
View full details →Recall 24V433000 — STEERING:LINKAGES:DRAG:LINK:CONNECTION
| 7,410 vehicles affected
Defect: PACCAR Incorporated (PACCAR) is recalling certain 2025 Kenworth K270, K370, L770, T280, T380, T480, T680, T880, W900, W990, 2025 Peterbilt 220, 520, 536, 537, 548, 567, 579, and 589 trucks. The tie rod or drag link assembly may contain an improperly heat-treated ball stud, causing the ball stud to break.
Consequence: A broken ball stud can cause a complete loss of steering control, increasing the risk of a crash.
Remedy: Owners are advised not to drive their vehicles until the remedy has been completed. Dealers will inspect and replace the tie rod and drag link assemblies as necessary, free of charge. Owner notification letters were mailed August 6, 2024. Owners...
View full details →Recall 24V044000 — STEERING
| 45,887 vehicles affected
Defect: PACCAR Incorporated (PACCAR) is recalling certain 2024-2025 Kenworth T280, T380, T480, T680, T880, L770, W990, and 2024-2025 Peterbilt 389, 520, 535, 536, 537, 548, 567, 579, 589 trucks. The steering gear assemblies may have been assembled incorrectly with fewer recirculating balls than are required, which may result in a loss of steering control.
Consequence: A loss of steering control increases the risk of a crash.
Remedy: Dealers will inspect and replace the steering gears as necessary, free of charge. Owner notification letters were mailed March 20, 2024. Owners may contact Peterbilt customer service at 1-940-591-4220 and/or Kenworth customer service at 1-425-828-5888. PACCAR's numbers for this recall...
View full details →Recall 24V044000 — STEERING
| 45,887 vehicles affected
Defect: PACCAR Incorporated (PACCAR) is recalling certain 2024-2025 Kenworth T280, T380, T480, T680, T880, L770, W990, and 2024-2025 Peterbilt 389, 520, 535, 536, 537, 548, 567, 579, 589 trucks. The steering gear assemblies may have been assembled incorrectly with fewer recirculating balls than are required, which may result in a loss of steering control.
Consequence: A loss of steering control increases the risk of a crash.
Remedy: Dealers will inspect and replace the steering gears as necessary, free of charge. Owner notification letters were mailed March 20, 2024. Owners may contact Peterbilt customer service at 1-940-591-4220 and/or Kenworth customer service at 1-425-828-5888. PACCAR's numbers for this recall...
View full details →Recall 24V044000 — STEERING
| 45,887 vehicles affected
Defect: PACCAR Incorporated (PACCAR) is recalling certain 2024-2025 Kenworth T280, T380, T480, T680, T880, L770, W990, and 2024-2025 Peterbilt 389, 520, 535, 536, 537, 548, 567, 579, 589 trucks. The steering gear assemblies may have been assembled incorrectly with fewer recirculating balls than are required, which may result in a loss of steering control.
Consequence: A loss of steering control increases the risk of a crash.
Remedy: Dealers will inspect and replace the steering gears as necessary, free of charge. Owner notification letters were mailed March 20, 2024. Owners may contact Peterbilt customer service at 1-940-591-4220 and/or Kenworth customer service at 1-425-828-5888. PACCAR's numbers for this recall...
View full details →Recall 26V022000 — STEERING
| 219 vehicles affected
Defect: PACCAR Incorporated (PACCAR) is recalling certain 2025 Kenworth L770 and 2024-2026 Peterbilt 520 vehicles. The right-hand stand-up (RHSU) configuration on the steering cross-shaft may become stressed and fail.
Consequence: A steering cross-shaft that fails can cause a loss of steering control, increasing the risk of a crash.
Remedy: Dealers will inspect and repair the steering cross-shafts and replace any damaged or broken cross-shafts, free of charge. Owner notification letters are expected to be mailed March 20, 2026. Owners may contact Peterbilt's customer service at 1-940-591-4220 and Kenworth's customer...
View full details →Recall 26V022000 — STEERING
| 219 vehicles affected
Defect: PACCAR Incorporated (PACCAR) is recalling certain 2025 Kenworth L770 and 2024-2026 Peterbilt 520 vehicles. The right-hand stand-up (RHSU) configuration on the steering cross-shaft may become stressed and fail.
Consequence: A steering cross-shaft that fails can cause a loss of steering control, increasing the risk of a crash.
Remedy: Dealers will inspect and repair the steering cross-shafts and replace any damaged or broken cross-shafts, free of charge. Owner notification letters are expected to be mailed March 20, 2026. Owners may contact Peterbilt's customer service at 1-940-591-4220 and Kenworth's customer...
View full details →Owner Complaints for the 2025 KENWORTH L770
No complaints have been filed with NHTSA for the 2025 KENWORTH L770.
Safety Rating for the 2025 KENWORTH L770
NHTSA has not yet tested the 2025 KENWORTH L770 in its New Car Assessment Program.
Technical Service Bulletins for the 2025 KENWORTH L770
PACCAR Incorporated has issued 1 technical service bulletin (TSBs) for the 2025 KENWORTH L770. TSBs are notices sent by manufacturers to their dealers describing a known issue and the recommended repair procedure.
15-034 — STEERING
Certain Kenworth L770 and Peterbilt Model 520 chassis may encounter a slight increase in effort in the right-hand steering shaft when turning the wheel.
NHTSA Investigations for the 2025 KENWORTH L770
There are no NHTSA defect investigations on record for this vehicle.
Other Model Years of the KENWORTH L770
- 2024 KENWORTH L770 — 0 complaints
- 2025 KENWORTH L770 (current)
- 2026 KENWORTH L770 — 0 complaints
Other KENWORTH Models
- KENWORTH T680 — 106 total complaints
- KENWORTH T2000 — 56 total complaints
- KENWORTH T800 — 49 total complaints
- KENWORTH W900 — 41 total complaints
- KENWORTH KENWORTH — 25 total complaints
- KENWORTH T600 — 21 total complaints
- KENWORTH T880 — 12 total complaints
- KENWORTH CONVENTIONAL — 11 total complaints