A good portion of Chevrolet Silverados on the road today are 10-plus years old because of their long-lasting dependability. To build on that reputation, we’ve put in place an even more extensive testing process that’s helped make the 2014 Silverado the most corrosion resistant truck Chevrolet has ever built.
In more than 25 years at General Motors, I’ve witnessed how the corrosion testing process has evolved into what it is today. The thoroughness that goes into the testing of any GM vehicle is above and beyond what a driver might think – and the 2014 Silverado is no exception to this process. At the GM Milford Proving Ground, we do everything we can to simulate the things our drivers do with their trucks. This includes driving through water, grit, salt and other various conditions, whether it is farm fields or potholes. We think about different weather conditions and how they affect corrosion. We look at the affects of snow and water for those in the northern part of the country, and for drivers living near the ocean we use a “salt mist” to replicate the beach environment. We also wash vehicles periodically throughout this process just like customers would, which helps re-expose the metal to the elements.
Beyond this surface-level testing, we do a number of post-test evaluations. These might be the most surprising part of the process to customers. In this step, we literally break apart the vehicle and evaluate each part’s durability – from behind the dashboard to the underbody to inside the door. This ensures that we are identifying issues before they begin — leaving no stone unturned.
In addition to enhanced corrosion protection, other 2014 improvements include:
- Improved hem flange sealing on the doors and hood, and additional underbody flange sealing to help keep the joints of the truck dry and discourage any deterioration that might occur from moisture
- Extensive and improved chassis corrosion protection that enhances the truck’s appearance and lengthens the life of underbody components
- Anti-chip protection on the lower body side for extra protection from stones or gravel
One of the biggest differences in cars and trucks is that trucks tend to get more use as “workhorses”. Owners drive them longer and hit the roads harder, so we want to make sure that we’re providing the most dependable, longest lasting vehicle to do that in. Through corrosion testing and other enhancements, the Chevrolet Silverado is stronger than ever before and ready to deliver what the driver needs for many years after purchase.
Mark Yergin is the Engineering Group Manager for GM Corrosion Engineering and the GM Corrosion Labs. Mark has worked for GM for 25 years, all at the General Motors Proving Grounds in Milford, Mich. with the Corrosion teams.