The worst 2024 Kenworth L770 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
Recalls 1
Steering
- What is wrong
- 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.
- Risk
- 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 are 24PBC and 24KWC.
Recall number 24V044000 · Recall details
Technical service bulletins for the 2024 Kenworth L770 21
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- 32 fuel injector part numbers (16 for MX-11 and 16 for MX-13) have been added to this warranty policy.
- There is an update to the CARB Base Emissions Warranty Limits table and Manufacturer’s Warranty Coverage...
- Removed hyperlinks for bulletin migration
- Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes
- KW: A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section
- This optional software update is expected to be available after 08/28/2026.
- The procedure has been updated to include additional steps for verifying the software level on the vehicle...
- This optional software update is expected to be available in late August 2026 for chassis equipped with...
- This optional software update is expected to be available on 08/07/26 for chassis equipped with EPA 2024...
- An optional software update is expected to be available on or after 07/31/26 for chassis equipped with EPA...
Compare the 2024 Kenworth L770
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Questions about the 2024 Kenworth L770
Is the 2024 Kenworth L770 reliable?
Owners have filed 0 complaints about the 2024 Kenworth L770.
What is the most common problem with the 2024 Kenworth L770?
There are not enough complaints to tell.
How many recalls does the 2024 Kenworth L770 have?
1 recall, covering steering.
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