2018 Chevrolet Silverado 1500: Transmission bad
Common wear/failure (not a recall)
Symptoms
Owners of the 2018 Silverado 1500 report: transmission bad. CarComplaints.com lists 7 owner complaints, average mileage 107,050 miles.
NHTSA has 170 owner complaints for the 2018 Silverado 1500 in this area. Examples:
- NHTSA complaint ODI #11764741 (filed 09/16/2026): “The transmission went out before it hit 100k miles. it had to be completely replaced which cost me several thousand dollars.…”
- NHTSA complaint ODI #11758850 (filed 08/23/2026): “My truck has been shuttering when accelerating and hard shifts periodically. the engine is also tapping. i have right at 74000 miles. regular oil changes and maintenances.…”
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: new transmission (5 reports). Check for open recalls and extended warranty coverage with a dealer before paying out of pocket.
DIY difficulty: Pro
Diagnosis needs a scan tool; repair or replacement needs a lift, transmission jack and the manufacturer's fluid fill/relearn procedure. (Our assessment.)
Cost
CarComplaints.com owners report a typical repair cost of about $5,270 (owner-reported average, not a quote).
Typical parts (search links, no affiliate codes)
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