T1XX Silverado & Sierra (2019–Present)

The T1XX — 2019 and newer Chevy and GMC full-size trucks and SUVs, including the EV variants — is the current generation: 10-speed transmissions, the 3.0L Duramax diesel option, and modern tech. This hub covers diesel-vs-gas, towing, and how it stacks up against the competition. The previous generation is the K2XX (2014–2018).

Start here

• Best Year Silverado to Buy

Engines: diesel vs gas

Whichever way you went, the diagnostic codes read the same across the range — a P0420 means the same thing on a T1XX as it does on a 1999 Silverado. The Silverado trouble code index covers them by system.

• Duramax vs 6.2L EcoTec3: Diesel or Gas Silverado?

Known issues & fixes

• T1XX 2019+ Common Issues & Known Fixes: 10-Speed, 2.7T & More (forum reference)

Towing

• Chevy Silverado Towing Capacity by Year
• Chevy Silverado Towing Guide

How it compares

• Chevy Silverado vs RAM 1500
• Chevy Silverado vs Ford F-150

Owner tools for your T1XX

Free, no sign-up, and built specifically for full-size GM trucks and SUVs.

• GM RPO Decoder — type the option codes off your sticker, or photograph the label and let the page read it. On 2018 and newer trucks the label moved and the layout changed, so read it rather than guessing from the window sticker.
• GM RPO Code Database — every option code we hold, searchable by code or by plain description, and filterable to your model year.
• MPG Calculator — miles, gallons, engine. You get your number and where it sits against everyone else running the same engine.

Still on the bench: a tire, gear and speedometer calculator for working out how far off your speedo reads after a size change and what it did to your effective gearing, and quick identifiers for engine RPO, axle code, transfer case and AFM/DFM — the things you need standing at a parts counter. See all FullSizeChevy owner tools →

Join the T1XX discussion

Discuss your T1XX or EV in the FullSizeChevy forum →