No—the 2018 Silverado uses electric power steering (EPS) rather than a hydraulic power steering system, so there is no traditional power steering fluid to check or top off. Steering assist is provided by an electric motor controlled by the vehicle’s steering module.
Understanding the steering system in the 2018 Silverado
GM migrated many light-duty trucks to electric power steering around this period. In the 2018 Silverado 1500, steering assist comes from an electric motor at the rack, rather than a belt-driven hydraulic pump. There is no PS fluid reservoir to inspect, and routine maintenance focuses on the electrical system and wheel alignment rather than hydraulic fluid levels.
Is there any power steering fluid to check?
Because the system is electric, there is no dedicated power steering fluid reservoir in the 2018 Silverado. Other fluids you might monitor on a regular basis include engine oil, brake fluid, coolant and transmission fluid, but not power steering fluid.
- Electric power steering uses a motor at the steering rack and a control module to provide assist.
- There is no hydraulic pump or high-pressure hose for power steering in this model.
- Normal maintenance emphasizes battery health, electrical connectors, and steering alignment.
- Noise, stiffness, or loss of assist may indicate EPS-related issues rather than a fluid problem.
In short, the absence of a PS fluid component means no fluid level to check, and issues are diagnosed through electrical diagnostics rather than fluid service.
Troubleshooting EPS issues
The following steps help diagnose and address EPS-related symptoms in the 2018 Silverado:
- Watch for dash warnings such as EPS or Power Steering warning lights.
- Note symptoms: heavy or inconsistent steering, reduced steering assist at idle, or intermittent loss of assist.
- Check the 12-volt battery and alternator condition; EPS relies on a stable electrical supply.
- Have a technician scan the vehicle for EPS-related fault codes and review any service Bulletins from GM or your dealer.
- If a fault is found, the fix may involve software updates, sensor recalibration, or replacement of the EPS motor or steering angle sensor.
If symptoms persist, contact a qualified GM technician. EPS faults can affect steering safety, and fluid-related maintenance will not resolve them.
Summary
The 2018 Chevy Silverado uses electric power steering (EPS) rather than hydraulic power steering. There is no power steering fluid to check or top off, and steering issues are diagnosed via electrical diagnostics and system software. Regular maintenance should focus on battery health, wheel alignment, and monitoring for EPS warnings, with professional service when faults occur.