Avoid unnecessary driving and arrange diagnosis; stop if acceleration or vehicle control is unsafe.
Avoid unnecessary driving and arrange diagnosis; stop if acceleration or vehicle control is unsafe.
The cited owner information describes a warning context; the icon, wording and urgency can differ by vehicle and equipment. Check the current exact-year manual and observed behavior before deciding whether to continue driving.
Read the Chevrolet / General Motors original: 2025 Silverado 2500HD/3500HD Owner Manual · Chevrolet manual finder if the PDF does not open Source date: document date not recorded; research checked: 2026-11-01.
What this warning means
Available propulsion performance is limited.
What you may see: Driver Information Center propulsion message.
Equipment and scope: Only if equipped; verify exact model-year owner manual.
First checks while safely parked
- When parked, record the exact symbol, color, flashing pattern and message.
- Use the selected vehicle manual before interpreting a similar-looking symbol.
When to get professional help
- Use a technician with support for the affected system when the fault persists.
What this warning does not prove
- A cylinder code identifies a reported cylinder, not a proven bad coil.
- Do not swap coils using a generic cylinder-location diagram.
- Do not reproduce a severe misfire on a test drive.
The checklist is an editorial reading of the cited sources, not an OEM repair procedure. A warning name alone does not identify a failed component.
Questions for a qualified shop
- Do ignition, fuel delivery, air leaks or mechanical compression explain the affected cylinders?
- Does an exact-engine compression/leak-down or ignition waveform test distinguish the cause?
- For Ford 25-2293, does recorded ECT meet the documented temperature branch?
Documented vehicle scope
- Chevrolet Silverado 2500HD, model year(s) 2025; confirm equipment and manual edition
- Chevrolet Silverado 3500HD, model year(s) 2025; confirm equipment and manual edition
A source mention is not evidence that every trim has the same display or that an individual VIN has a fault.
Codes in the same diagnostic topic
These are research links for the same system. They are not codes confirmed on your vehicle by this warning.
Vehicle-specific confirmation
Symbols, colors, messages and flashing patterns vary by model year and equipment. Use the exact manual. If the vehicle feels unsafe, the observed condition takes priority over this general label.
Sources and scope
- Chevrolet / General Motors — 2025 Silverado 2500HD/3500HD Owner Manual Document: date not recorded · Research checked: 2026-11-01 · Chevrolet manual finder
Research snapshot: 2026-11-01. Source documents may have newer revisions. Verify current instructions and VIN eligibility with the manufacturer.