2015 Chevrolet Silverado and GMC Sierra Trucks Missing Seal

Vehicles affected by service bulletin:

• 2015 Chevrolet Silverado 2500 HD
• 2015 Chevrolet Silverado 3500 HD
• 2015 GMC Sierra 2500 HD
• 2015 GMC Sierra 3500 HD

The problem: These vehicles may have been built with a hose connection within the power-steering fluid cooler unit that’s missing a seal. If this is the case and the vehicle is driven, the power-steering system could run low or dry, resulting in difficult steering and possible damage to other parts of the system. Additionally, should the power-steering fluid find its way to an ignition point, such as a hot exhaust manifold, it could ignite, causing an under-hood fire.

See More Service Bulletins

Corrective action: On affected vehicles, GM will inspect the power-steering hoses on both gasoline- and diesel-powered vehicles. If the hoses are in good shape, dealers will replace the power-steering fluid cooler unit, reattach the hoses, fill the system and check for leaks.

Warranty info: Repairs will be covered under the provisions of the new-vehicle warranty.

What owners should do: Call your local dealer with your vehicle identification number to determine if your vehicle is involved in this service action. You can also call Chevrolet at 800-222-1020 or GMC at 800-462-8782. Reference TSB number 14608.

Need to find a dealer for service? Go to Cars.com Service & Repair to find a local dealer.

Editor’s note: This is only one of dozens of service bulletins issued each month by automakers. Please check your automaker’s website to see if your vehicle has any service bulletins pending.

Check for recalls here on Cars.com.