The worst 2020 Peterbilt 548 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
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Recalls 1
Service brakes, air
- What is wrong
- PACCAR Incorporated (PACCAR) is recalling certain 2021-2024 Kenworth T280, T380, 2020-2024 Peterbilt 548, 536, 2024 Peterbilt 537, and 2020-2024 Kenworth T480 trucks. The timing of the trailer brake release may be delayed. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
- Risk
- A delay in the trailer brake release can create instability to the trailer and increase the risk of a crash.
- Remedy
- Dealers will replace the fittings and hoses in the affected valves, free of charge. Owner letters were mailed January 15, 2024. Owners may contact Kenworth's customer service at 1‑425‑828‑5888 and Peterbilt's customer service at 1‑940‑591‑4220. PACCAR's numbers for this recall are 23KWJ and 23PBJ.
Recall number 23V661000 · Recall details
Technical service bulletins for the 2020 Peterbilt 548 19
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- The new 2.1m day cab lift tools, a Level 3 mandatory tool, are now available to order.
- "Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes
- Troubleshooting procedures for 2.1m cab power windows are now available.
- Bogie Crossmember Torque Value Update
- Cummins TSB 210203 has been updated to remove the PACCAR suction side fuel filter part number from Table 1...
- Info Only Unnecessary starter replacements can result from customer complaints regarding engine starting...
- On certain Peterbilt, New Medium Duty chassis that are equipped with the optional engine intake air...
- Certain 536, 537, 548, and 567 chassis built with 2.1m Medium Duty End of Frame Trailer Connections and...
- Certain 536, 537, and 548 chassis built with 2.1m Medium Duty End of Frame Trailer Connections may exceed...
- Safety Recall The brake pedal plunger which connects the brake pedal to the brake valve may dislodge after...
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Questions about the 2020 Peterbilt 548
Is the 2020 Peterbilt 548 reliable?
Owners have filed 0 complaints about the 2020 Peterbilt 548.
What is the most common problem with the 2020 Peterbilt 548?
There are not enough complaints to tell.
How many recalls does the 2020 Peterbilt 548 have?
1 recall, covering service brakes, air.
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