Category: sierra

Recent developments have revealed a critical safety recall affecting the 2024 Chevrolet Silverado and GMC Sierra HD models. The issue involves a serious flaw in the steering assemblies of these trucks, which may lead to steering failures. This recall impacts approximately 4,000 units of the 2500 HD and 3500 HD models, necessitating immediate action from owners.

What Caused the Steering Gear Problem?

The recall stems from a defect discovered through GM’s “Speak Up For Safety” program, where a quality engineer identified a fractured steering shaft. This issue was traced back to improper heat treating and the use of substandard materials by Nexteer, the steering gear supplier. Although GM has not reported any accidents or injuries linked to this defect, they are addressing the problem by notifying affected truck owners.

Historical Context of GM Recalls

GM has faced several recalls for the 2500 HD and 3500 HD models in recent years, with issues ranging from fire risks due to faulty brake fluid switches to wire chafing in Duramax diesel engines. The latest recall, identified as No. 23V-549, will see notifications sent to truck owners by mid-September. For further assistance, owners can contact GM’s recall center or check the National Highway Traffic Safety Administration website with their VIN for verification.

The Rise and Fall of Light-Duty Diesel Trucks

Once dominated by industrial applications, diesel engines found their way into pickup trucks, transforming from heavy-duty workhorses to more versatile, light-duty options. Over the past few decades, automakers have worked to develop lighter, more efficient diesel engines for cars and SUVs, primarily targeting international markets. The introduction of these engines to the American pickup truck scene led to the creation of some of the most fuel-efficient trucks ever made, but stringent emissions regulations and limited consumer demand have pushed light-duty diesel trucks to the brink of extinction.

The Age of Light-Duty Diesels

Not long ago, buyers had a variety of light-duty diesel options. Chevrolet and GMC offered a 3.0-liter turbocharged diesel I6 in their half-ton models, while Ford and Ram featured their own 3.0-liter turbocharged V6 engines in similar trucks. General Motors also pioneered the midsize diesel market with the 2.8-liter Duramax turbodiesel in the Chevrolet Colorado and GMC Canyon starting in 2016, setting new standards for efficiency and performance in this segment.

The Decline of Diesel Options

Despite their initial appeal, light-duty diesel trucks have become increasingly rare. Ford discontinued its diesel option for the F-150 ahead of the 2022 model year to focus on hybrid alternatives. Ram followed suit by dropping its EcoDiesel V6 at the end of 2022, though it continued to offer this engine in the Jeep Gladiator until 2023. General Motors also removed the diesel engine option from the redesigned GMC Canyon and Chevy Colorado for the 2023 model year, signaling a shift away from diesel-powered light-duty trucks.

The Last Remaining Light-Duty Diesel Truck

Currently, General Motors is the only manufacturer still offering light-duty diesel engines in its half-ton pickups. The company’s 3.0-liter Duramax I6, co-developed with Opel, delivers up to 305 horsepower and 495 lb-ft of torque. Available in various models, including the Chevrolet Silverado 1500 and GMC Sierra 1500, this engine adds approximately $2960 to the base price. The EPA estimates fuel economy for these trucks at 24 city/29 highway mpg (26 combined), with even higher efficiency reported under optimal driving conditions.

By continuing to offer its Duramax diesel engine, General Motors maintains a niche market for light-duty diesel trucks, despite broader industry trends shifting away from diesel options. This commitment reflects the enduring appeal of diesel engines for certain drivers who value their unique blend of power and efficiency.