The problem: in affected vehicles, the engine oil cooler lines may leak and detach from the crimp joints. Exposure to cold temperatures may also aggravate this condition. If the engine oil cooler lines leak, there may be an oil leak on the ground and if the lines detach entirely while the vehicle is in motion, there will be an immediate decrease in oil pressure. This will also coincide with a low oil pressure warning on the driver information display and a warning chime.
The hazards: if the user continues to operate the vehicle with low oil pressure, there may be a loss of propulsion. An engine operating with low oil pressure may also be prone to failure.
The fix: dealers are instructed to replace the engine oil cooler lines, oil filter and coolant. These repairs will be performed at no cost to the vehicle owner.
Affected components: engine oil cooler lines.
Number of affected vehicles: GM did not say how many vehicles are involved in this customer satisfaction program.
Next steps: owners of affected Chevy Silverado or GMC Sierra trucks will most likely be instructed to make an appointment with their dealership to have the engine oil cooler lines inspected and replaced. Owners with additional questions or concerns can also reach out to Chevy or GMC directly using the contact information included below.
- GM Customer Satisfaction Program number: N212326940
- Chevrolet Customer Service: 1-800-222-1020
- GMC Customer Service: 1-800-462-8782