2026 Volvo Vnl (4) Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2026 Volvo Vnl (4), grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Body & structure114.3%
- Brakes114.3%
- Driver assistance114.3%
- Electrical114.3%
- Exterior lighting114.3%
- Powertrain (other)114.3%
- Steering114.3%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Body & structure
Reports naming the vehicle structure, frame, body panels, doors, hood and trim.
From owner reports, verbatim
The contact owns a 2026 Volvo VNL4. The contact stated that the front lift axle lowered unintendedly while in the travel position. The computer sensed the abnormal weight while driving in high winds. While driving in snow, rain, and wind, the contact was concerned about a crash while driving the vehicle. The vehicle was taken to the local dealer, but the vehicle was not diagnosed or repaired after several months. The manufacturer was contacted. The failure mileage was approximately 1,800.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
I am submitting this complaint to report a serious safety issue involving a Volvo VNL truck. The vehicle was purchased new on December 12, 2025 and currently has approximately 22,000 miles. Since shortly after purchase, the truck has experienced a defect in the braking system. While driving, the vehicle has unexpectedly applied the brakes on its own and has displayed warning messages related to the parking brake system. This creates a dangerous situation because sudden braking can cause loss of control or lead to a collision with other vehicles. The truck was taken to an authorized Volvo dealer for repair and remained at the dealership for approximately one month while technicians attempted to diagnose and repair the problem. After the truck was returned to me, the exact same issue occurred again almost immediately. Because the braking system is a critical safety component, the unexpected application of brakes while driving presents a serious risk to the driver and to other motorists on the road. The defect has persisted despite extended repair attempts. I am reporting this issue so that it can be investigated as a potential safety defect affecting this vehicle model. Vehicle Information: Make: Volvo Trucks Model: VNL Purchase Date: December 12, 2025 Mileage: Approximately 22,000 miles I request that this safety issue be reviewed and investigated to determine whether other vehicles may be affected by the same defect.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
I am submitting this complaint to report a serious safety issue involving a Volvo VNL truck. The vehicle was purchased new on December 12, 2025 and currently has approximately 22,000 miles. Since shortly after purchase, the truck has experienced a defect in the braking system. While driving, the vehicle has unexpectedly applied the brakes on its own and has displayed warning messages related to the parking brake system. This creates a dangerous situation because sudden braking can cause loss of control or lead to a collision with other vehicles. The truck was taken to an authorized Volvo dealer for repair and remained at the dealership for approximately one month while technicians attempted to diagnose and repair the problem. After the truck was returned to me, the exact same issue occurred again almost immediately. Because the braking system is a critical safety component, the unexpected application of brakes while driving presents a serious risk to the driver and to other motorists on the road. The defect has persisted despite extended repair attempts. I am reporting this issue so that it can be investigated as a potential safety defect affecting this vehicle model. Vehicle Information: Make: Volvo Trucks Model: VNL Purchase Date: December 12, 2025 Mileage: Approximately 22,000 miles I request that this safety issue be reviewed and investigated to determine whether other vehicles may be affected by the same defect.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
Im experiencing. 1.)engine malfunction, 2.) def system not performing auto regen or standby regen, 3.) check engine light on, 4.) def engine blinking continuously, 5.) steering wheel control pulling to the passenger side, 6.) carbon monoxide inside truck due to heater control knob turned on or off and it still blows heats and fumes inside truck whether its on or off, 7.) ROOF ID LAMP LIGHT is not working, 8.) hood latch is not 100% properly locking to secure shut, and computer module box to the airlines is defected causing me to not be able to slide tandems on trailer without having ME TO FORCEFULLY disconnect the RED AIRLINE HOSE FROM THE TRAILER. Im here in [XXX] the Cambria Truck Center and they are telling this particular truck haves only 2 recalls and the def problem already got.taken care of and the 2nd recall is a stability cross bar behind the tractor. I told Cambria truck center that all the exact issues the truck and myself is experiencing is all listed on the Internet on the recall list for 2026 VOLVO VNL 660. THEY SAID NOT ALL THE RECALLS ARE FOR THE SAME YEAR MAKE AND MODEL IT GOES BY VIN ONLY THEY ARE LOOKING AT IT ITS IN THEIR SHOP PLEASE HELP ME GET THE RECALLS APPROVED FOR MY 2026 VOLVO VNL 660. MY PHONE NUMBER IS [XX [XXX] [XXX] im l [XXX] this tractor from Super Ego I have 1 month with the 2026 VOLVO VNL 660. VIN# [XXX] INFORMATION RED [XXX] THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Too few reports in this category for a page of its own — they appear in the full complaint list.
Exterior lighting
Reports naming headlights, tail lights, turn signals and other exterior lighting.
From owner reports, verbatim
Im experiencing. 1.)engine malfunction, 2.) def system not performing auto regen or standby regen, 3.) check engine light on, 4.) def engine blinking continuously, 5.) steering wheel control pulling to the passenger side, 6.) carbon monoxide inside truck due to heater control knob turned on or off and it still blows heats and fumes inside truck whether its on or off, 7.) ROOF ID LAMP LIGHT is not working, 8.) hood latch is not 100% properly locking to secure shut, and computer module box to the airlines is defected causing me to not be able to slide tandems on trailer without having ME TO FORCEFULLY disconnect the RED AIRLINE HOSE FROM THE TRAILER. Im here in [XXX] the Cambria Truck Center and they are telling this particular truck haves only 2 recalls and the def problem already got.taken care of and the 2nd recall is a stability cross bar behind the tractor. I told Cambria truck center that all the exact issues the truck and myself is experiencing is all listed on the Internet on the recall list for 2026 VOLVO VNL 660. THEY SAID NOT ALL THE RECALLS ARE FOR THE SAME YEAR MAKE AND MODEL IT GOES BY VIN ONLY THEY ARE LOOKING AT IT ITS IN THEIR SHOP PLEASE HELP ME GET THE RECALLS APPROVED FOR MY 2026 VOLVO VNL 660. MY PHONE NUMBER IS [XX [XXX] [XXX] im l [XXX] this tractor from Super Ego I have 1 month with the 2026 VOLVO VNL 660. VIN# [XXX] INFORMATION RED [XXX] THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
The contact owns a 2026 Volvo VNL(4). The contact stated that while driving approximately 75 MPH, the message "Stop Vehicle - Apply Parking Brake Only While at Stand Still" was displayed, with three unknown warning lights were illuminated, with a continuous audible alert. The vehicle was taken to a dealer, where a diagnostic machine was connected, but the computer system crashed. The cluster display, environment control, gateway, radio and entertainment, driver control, and telematic gateway modules, and the CCIOM, RIOCM, VMCU, SCIM, and DACU, all needed to be replaced. The vehicle was repaired, but the failure reoccurred two and a half hours later. The vehicle was taken to another dealer, however, before the vehicle was diagnosed, it turned off in the parking lot with the doors wide open and the key not in the ignition. With the battery saver mode activated, the vehicle rolled forward inadvertently. The contact's husband was in the bed of the vehicle and reached into the front of the vehicle and pulled the air brake, however, the vehicle failed to slow down. The brake pedal was depressed, and the vehicle stopped. The vehicle was diagnosed, and the contact was informed that the wheel speed sensor needed to be replaced. The vehicle was repaired. On another occasion, while attempting to park the vehicle with the parking brake activated, the parking brake failed to engage, and the vehicle rolled forward. The vehicle was taken to a dealer, where the failure could not be duplicated; however, the EBS module was replaced. The vehicle was repaired, but the failure recurred intermittently. The vehicle was taken to another dealer; however, the failure was not duplicated. The contact stated that the engineers diagnosed the vehicle and determined that the two axles might need to be replaced. The manufacturer was notified of the failure. The failure mileage was 54,000.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Steering
Reports naming the steering system — racks, columns, power-steering assist and steering linkage.
From owner reports, verbatim
Im experiencing. 1.)engine malfunction, 2.) def system not performing auto regen or standby regen, 3.) check engine light on, 4.) def engine blinking continuously, 5.) steering wheel control pulling to the passenger side, 6.) carbon monoxide inside truck due to heater control knob turned on or off and it still blows heats and fumes inside truck whether its on or off, 7.) ROOF ID LAMP LIGHT is not working, 8.) hood latch is not 100% properly locking to secure shut, and computer module box to the airlines is defected causing me to not be able to slide tandems on trailer without having ME TO FORCEFULLY disconnect the RED AIRLINE HOSE FROM THE TRAILER. Im here in [XXX] the Cambria Truck Center and they are telling this particular truck haves only 2 recalls and the def problem already got.taken care of and the 2nd recall is a stability cross bar behind the tractor. I told Cambria truck center that all the exact issues the truck and myself is experiencing is all listed on the Internet on the recall list for 2026 VOLVO VNL 660. THEY SAID NOT ALL THE RECALLS ARE FOR THE SAME YEAR MAKE AND MODEL IT GOES BY VIN ONLY THEY ARE LOOKING AT IT ITS IN THEIR SHOP PLEASE HELP ME GET THE RECALLS APPROVED FOR MY 2026 VOLVO VNL 660. MY PHONE NUMBER IS [XX [XXX] [XXX] im l [XXX] this tractor from Super Ego I have 1 month with the 2026 VOLVO VNL 660. VIN# [XXX] INFORMATION RED [XXX] THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .