2021 Chevrolet Silverado 1500: Long crank no start
Common wear/failure (not a recall)
Symptoms
Owners of the 2021 Silverado 1500 report: long crank no start. CarComplaints.com lists 3 owner complaints, average mileage 5,650 miles.
NHTSA has 440 owner complaints for the 2021 Silverado 1500 in this area. Examples:
- NHTSA complaint ODI #11771512 (filed 10/15/2026): “Chevy silverado 1500 6.2l truck lost acceleration while driving. truck advised driver to shift to neutral and restart vehicle. when driver did, no resolve. error code with diagnostic report was immediately emailed to owner with error code of p0016. mechanic …”
- NHTSA complaint ODI #11771523 (filed 10/15/2026): “Chevrolet silverado 1500 6.2l truck was driving and fully lost capability to accelerate. truck alarmed driver to shift to neutral and restart engine. attempt to restart engine was not successful. error code was sent via email in a diagnostic report to owner wi…”
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: none clearly reported. Check for open recalls and extended warranty coverage with a dealer before paying out of pocket.
DIY difficulty: Pro
Internal engine work (lifters, oil consumption, fuel dilution diagnosis) requires engine teardown or dealer software/tests. (Our assessment.)
Cost
No sourced cost range: get a written quote after diagnosis.
Typical parts (search links, no affiliate codes)
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