On XXX, while operating a 2027 Kenworth T680, VIN [XXX], at approximately 64 mph on [XXX], the truck experienced a sudden electrical and control-system failure while in motion. The steering became extremely difficult or unresponsive, and the wheels or brakes appeared to lock, creating an immediate risk of a serious collision. I was able to bring the vehicle to a stop without striking another vehicle. Following the incident, the instrument panel displayed multiple “Data Error” messages, an ABS warning, traction-control warning, Predictive Cruise Fault, and missing engine RPM, oil, coolant, torque and boost information. The electronic parking brake would not release even though both air systems displayed approximately 100 PSI and the transmission displayed Neutral. The truck could not be safely driven and was towed to Youngstown Kenworth Inc, [XXX]. The dealership has verbally advised that the ECM, or control module identified by the repair shop as the ECM, is not connecting or communicating with the truck. The vehicle remains out of service pending diagnosis and repair. The truck’s manufacturing label is dated XXX. the federal safety agency recall 26V485000, PACCAR campaign 26PACD, covers certain 2027 [XXX] T680 tractors produced from XXX. That recall concerns possible oil contamination in the Power Distribution Center, which can cause loss of power to the engine, ABS, exterior lighting, windshield wipers or defrost system. I request that the federal safety agency document and investigate this incident and determine whether the loss of electrical communication, steering assistance and braking or wheel control is connected to recall 26V485000 or another safety defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The worst 2027 Kenworth T680 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Brakes1
- Electrical1
- Steering1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Brakes1
- Electrical1
- Steering1
Recalls 4
Seat belts: rear/other: webbing
- What is wrong
- PACCAR Incorporated (PACCAR) is recalling certain 2027 Peterbilt 567, 579, 589, Kenworth T680, T880, W900, and W990 vehicles. The belt restraint webbing for the sleeper bunk was not secured properly during manufacturing.
- Risk
- A bunk restraint with improperly secured webbing may fail to adequately restrain vehicle occupants during a crash, increasing the risk of injury.
- Remedy
- Dealers will inspect and replace the bunk restraints, as necessary, free of charge. Owner notification letters are expected to be mailed December 13, 2026. 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 26PACH.
Recall number 26V674000 · Recall details
Seats: front assembly: seat heater/cooler
- What is wrong
- PACCAR Incorporated (PACCAR) is recalling certain 2027 Peterbilt 567, 579, 589 and 2027 Kenworth T680, T880, and W990 vehicles. The seat ventilation harness may be missing heat-shrink, resulting in a short circuit.
- Risk
- A short circuit increases the risk of a fire.
- Remedy
- Dealers will replace the harnesses, free of charge. Owner notification letters were mailed October 16, 2026. Owners may contact Peterbilt's customer service at 1‑940‑591‑4220 or Kenworth's customer service at 1‑425‑828‑5888. PACCAR's number for this recall is 26PACE.
Recall number 26V544000 · Recall details
Electrical system: wiring: power distribution module/ipdm
- What is wrong
- PACCAR Incorporated (PACCAR) is recalling certain 2027 Peterbilt and Kenworth vehicles. Please see the recall report for a complete list of models. The power distribution center (PDC) box may be contaminated with oil, which could result in a loss of drive power, Antilock Brake System (ABS) functionality, exterior lighting, windshield wipers, or the defogging system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 103, "Windshield Defrosting and Defogging Systems," 104, "Windshield Wiping and Washing Systems," and 108, "Lamps, Reflective Devices, and Associated Equipment."
- Risk
- A loss of lighting, windshield wipers, ABS function, or a loss of drive power can increase the risk of a crash.
- Remedy
- Dealers will inspect the PDC serial numbers, and replace the PDC boxes as necessary, free of charge. Owner letters were mailed September 23, 2026. Owners may contact Peterbilt's customer service at 1‑940‑591‑4220 and Kenworth's customer service at 1‑425‑828‑5888. PACCAR's number for this recall is 26PACD.
Recall number 26V485000 · Recall details
Service brakes, air: supply: quick release valve
- What is wrong
- PACCAR Incorporated (PACCAR) is recalling certain 2026-2027 Peterbilt 579 and 2027 Kenworth T680 tractors. The trailer air connection quick release (QR) valve in the air brake system may have been incorrectly installed, which can cause the trailer to become unstable after the driver applies the brakes. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
- Risk
- An incorrectly installed quick release valve that does not function properly can increase the risk of a crash.
- Remedy
- Paccar inspected and reinstalled the valves, as necessary, free of charge. All affected tractors have been repaired and therefore no owner notification letters are necessary. Owners may contact Peterbilt's customer service at 1‑940‑591‑4220 and Kenworth's customer service at 1‑425‑828‑5888. PACCAR's number for this recall is 26PACC.
Recall number 26V442000 · Recall details
Technical service bulletins for the 2027 Kenworth T680 14
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Replaced generic SRT codes with bulletin-specific SRT codes.
- The new 2.1m day cab lift tools, a Level 3 mandatory tool, are now available to order.
- Eaton service bulletin TAIB-1026 instructs dealers to update the master switch module (MSM) software
- Certain Gra-Mag seats have an internal seat harness manufactured without heat-shrink on the resistor/diode...
- Additional chassis have been added to the population
- Certain T680 Next Gen short hood chassis may be missing a bolt in the forward fairing.
- The PKC Group power distribution center (PDC) in certain vehicles may be contaminated with oil, which...
- Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes
- (KW) Parts Shortage – Due to supplier constraints, certain T680 and T880 chassis were shipped without KIMS...
- An exhaust manifold slip joint seal kit is now available for EPA 2017-2024 PACCAR MX-13 engines.
What 2027 Kenworth T680 owners say
Most recent owner complaints, unedited.
Compare the 2027 Kenworth T680
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Questions about the 2027 Kenworth T680
Is the 2027 Kenworth T680 reliable?
Owners have filed 1 complaint about the 2027 Kenworth T680, fewer than a typical T680 model year.
What is the most common problem with the 2027 Kenworth T680?
Brakes, with 1 complaint. Next is electrical (1).
How many recalls does the 2027 Kenworth T680 have?
4 recalls, covering seat belts, seats and electrical system.
Was there a recall on the 2027 Kenworth T680 brakes?
Yes, 1 recall: 26V442000. Check your VIN to see if your car still needs the free repair.
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