2021 Chevrolet Silverado 1500: Ecm warning light comes on loss of steering cant drive
Common wear/failure (not a recall)
Symptoms
Owners of the 2021 Silverado 1500 report: ecm warning light comes on loss of steering cant drive. CarComplaints.com lists 2 owner complaints, average mileage 75,650 miles.
NHTSA has 43 owner complaints for the 2021 Silverado 1500 in this area. Examples:
- NHTSA complaint ODI #11770545 (filed 10/12/2026): “While driving approximately 30–40 mph through an uphill left-hand curve, the steering suddenly became extremely stiff and very difficult to turn. i do not recall seeing any warning before i noticed the steering becoming stiff. while trying to control the vehic…”
- NHTSA complaint ODI #11769678 (filed 10/07/2026): “While driving vehicle service power steering light came on had no power steering had to wrestle steering wheel no power steering a smaller person would not have able to handle it…”
Likely causes
Sources do not establish a single root cause; diagnosis is needed. Owner-reported fixes are listed below.
Fix, in plain English
Most common owner-reported solutions on CarComplaints.com: rack & pinion elec steering total replacement ($ 2,500) (1 reports). Check for open recalls and extended warranty coverage with a dealer before paying out of pocket.
DIY difficulty: Pro
Electric power steering faults typically need module diagnosis with a scan tool and calibration. (Our assessment.)
Cost
CarComplaints.com owners report a typical repair cost of about $2,500 (owner-reported average, not a quote).
Typical parts (search links, no affiliate codes)
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