The announcements follow similar updates from other major truck manufacturers and come as the U.S. Environmental Protection Agency (EPA) considers changes to federal emissions regulations affecting newly manufactured heavy-duty trucks.

Software Updates Extend Repair Window

According to Volvo Trucks and Mack Trucks, the updated software delays DEF-related engine derates and vehicle speed restrictions, allowing drivers additional time to reach a repair facility when emissions system issues occur.

The companies said the updates are intended to reduce unplanned downtime while maintaining emissions compliance and improving operational flexibility for fleets.

“By extending the repair window and increasing the final inducement speed, we are helping drivers keep their trucks on the road and safely reach a service location, reducing the risk of unexpected downtime and supporting the uptime and productivity our customers depend on every day,” said Peter Voorhoeve, president of Volvo Trucks North America.

Rollout Underway Across Multiple Models

Volvo said it has been producing trucks equipped with the updated software since May 2026 on vehicles powered by its D13 VGT and D13TC engines. Many recently manufactured trucks have already received the update through remote software downloads.

Mack has also begun installing the software on new Anthem and Pioneer models equipped with MP13 engines. The company expects the update to be available for all 2024 and newer Mack trucks by the end of the summer, with plans to extend the software to all eligible post-2010 models by the end of 2027.

Jonathan Randall, president of Mack Trucks North America, said the company remains focused on providing customers with solutions that support both regulatory compliance and day-to-day operations.

Industry Responds to Proposed EPA Rule Changes

Volvo Group’s announcement follows similar software updates introduced by Daimler Truck North America and Paccar as truck manufacturers respond to the EPA’s proposed emissions rule.

In June, the EPA proposed eliminating DEF-related engine derates and vehicle speed restrictions on newly manufactured heavy-duty trucks while maintaining emissions standards. If finalized, the proposal would change how manufacturers manage emissions system faults on future vehicles.

For fleets operating existing trucks, manufacturers say the new software is intended to reduce disruptions by allowing more time to schedule repairs before performance limitations are activated.

The TDUSA editorial team creates practical, driver-focused content covering trucking news, industry updates, safety, regulations, and career information for professional truck drivers across the United States. Each article is built to reflect real-world experience, industry developments, and information drivers can use on and off the road.

Last Updated: August 17, 2026

Source: Trucking Dive

Image Source: Mack Trucks

The post Volvo, Mack Expand DEF Software Updates for Heavy-Duty Trucks appeared first on Truck Drivers USA.

“These updates make stops faster, easier, and more comfortable for drivers,” a company spokesperson said.

Updated Locations with Curb-to-Counter Renovations

• Pilot #1 – Mill Hall, Pennsylvania
• Pilot #1019 – Orland, California
• Pilot #602 – Birmingham, Alabama
• Pilot #1021 – Holland, Michigan
• Pilot #12 – Perrysburg, Ohio
• Pilot #209 – Van Horn, Texas
• Pilot #134 – St. Cloud, Minnesota
• Pilot #1028 – Buffalo, Texas
• Flying J #552 – Lebanon, Ohio
• Flying J #655 – Spiceland, Indiana
• Flying J #620 – Smithton, Pennsylvania
• Flying J #744 – Ogden, Utah
• Shell Flying J #863 – Balgonie, Saskatchewan
• One9 #226 – Dandridge, Tennessee

New Dealer Locations for Easy Access

Pilot and One9 also added 11 dealer locations, giving drivers more options for parts and maintenance along busy routes:

• Pilot Dealer #1483 – Kankakee, Illinois
• Pilot Dealer #1476 – Belvidere, Illinois
• One9 Dealer #1463 – Welsh, Louisiana
• One9 Dealer #1471 – Bolingbrook, Illinois
• One9 Dealer #1481 – Ozark, Alabama
• One9 Dealer #1447 – El Centro, California
• One9 Dealer #1482 – Sauk Center, Minnesota
• One9 Dealer #1418 – Seguin, Texas
• One9 Dealer #1335 – Venus, Texas
• One9 Dealer #1503 – Salina, Utah
• One9 Dealer #1504 – Searchlight, Nevada

Truck Maintenance Services Expanding

Truck drivers can now access maintenance services at over 90 Southern Tire Mart at Pilot locations nationwide. Six new sites include:

• STMP #729 – Houston, Texas
• STMP #50 – Sulfur, Kentucky
• STMP #746 – Salt Lake City, Utah
• STMP #1319 – Burleson, Texas
• STMP #705 – Sayre, Oklahoma
• STMP #1382 – Hudson, Colorado

Digital Upgrades for a Smoother Stop

Pilot is rolling out mobile ordering at select locations, aiming to have it available at nearly 400 centers by the end of 2025. Drivers can also navigate the updated Pilot website at PilotCompany.com, featuring a fresh design and streamlined content for easier trip planning.

Additionally, the award-winning myRewards Plus app is now the Pilot app, keeping loyalty programs, shower and parking reservations, mobile fueling, and personalized offers all in one intuitive platform.

“Creating exceptional experiences for our guests – whether in our stores, at the pumps or in our app – is driven by our purpose of showing people they matter at every turn,” said Brad Anderson, president, retail at Pilot. “Providing a seamless digital experience and meeting the diverse needs of our guests are just a few examples of how we are living out our ambition to be the leading energy and experience provider people rely on to fuel their journeys.”

With these upgrades, Pilot is making stops more efficient, comfortable, and convenient for truck drivers on long hauls, helping them get back on the road quickly and safely.

Image Source: Pilot

Other Sources: Truckers News

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Key Features for Truckers

Specifically designed with truck drivers in mind, the North Baltimore store offers convenient access from Interstate 75 and features amenities tailored to long-haul operators. Highlights include:

• 43 overnight truck parking spaces

• Seven high-flow diesel fuel lanes

• Availability of diesel exhaust fluid (DEF)

This latest store complements the first two Toledo-area Sheetz locations, which opened in September.

Grand Opening Celebration

The store’s grand opening festivities will kick off Wednesday morning, starting at 9 a.m. Customers can look forward to exciting giveaways, including the highly anticipated “Free Sheetz for a Year” grand prize. The ribbon-cutting ceremony will take place at 10:45 a.m.

Community Impact

Sheetz’s commitment to the community shines through with its $2,500 donation to the Toledo Northwestern Ohio Foodbank, which serves eight surrounding counties, including Lucas, Defiance, and Wood. Additionally, Sheetz contributed $2,500 to the Special Olympics of Ohio, further emphasizing its dedication to supporting impactful organizations in the region.

About Sheetz

With over 750 locations spanning Pennsylvania, Ohio, North Carolina, Michigan, Virginia, West Virginia, and Maryland, Sheetz has established itself as a go-to destination for quality food and convenience. Every Sheetz store operates 24/7, 365 days a year, ensuring unparalleled accessibility for customers.

Source: Truckers News

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