Jorzau Auto Start-Stop Eliminator for Chevy Silverado & GMC Sierra 1500 (2019–2021) — Plug & Play, Preserves HVAC

The Jorzau Auto Start Stop Eliminator is a plug-and-play module that permanently disables the factory idle stop-start on 2019–2021 Chevy Silverado 1500 and GMC Sierra 1500 trucks so the engine remains running at stops.

If you find the factory auto start-stop feature intrusive or prefer uninterrupted engine operation for climate control and electronics, this compact harness module provides a straightforward solution. Designed specifically for Silverado and Sierra 1500 models from 2019 through 2021, the unit connects without splicing or programming and works with both button locations (below the touchscreen or below the shifter).

How does this module stop the engine from shutting off at traffic lights?

The module intercepts the vehicle signal that triggers the factory auto stop-start system and prevents the shutdown command from taking effect. It effectively keeps the engine running while the truck is stopped, preserving cabin comfort and immediate throttle response.

• Permanently disables or remembers the off setting depending on vehicle behavior
• No ECU reprogramming — electronic signal-level intervention
• Compatible with both dashboard button positions used in these model years
• Designed to avoid interfering with other vehicle systems

Is installation difficult and will it void my truck warranty?

Installation is plug-and-play and requires no cutting, splicing, or software flashing. You use the included pry tool to access the factory connector, then attach the module harness for an immediate change in function.

• Tool included: pry tool for trim removal
• No permanent wiring changes — fully reversible by unplugging
• Typical install time: 10–30 minutes depending on access
• Check dealer warranty policy; since no wiring is cut, many owners report no warranty impact

Will this affect my truck's AC, electronics, or fuel system?

• Maintains HVAC operation and full blower output during idle
• Continues normal charging behavior while engine runs
• Does not change throttle mapping, fuel trims, or emission systems
• Engine management and sensors remain under factory control

What comes in the box and how do I confirm fitment?

The package contains the Jorzau module, a plastic pry tool, and a step-by-step installation manual. Before ordering, verify your truck is a Chevy Silverado 1500 or GMC Sierra 1500 from model years 2019, 2020, or 2021 to ensure compatibility.

• Includes: 1x auto start-stop disable module, 1x pry tool, 1x installation manual
• Works with both button placements found in these model years
• Confirm model year and factory button location prior to purchase
• Simple unplug reversibility for future service or sale

Who is this for: The Jorzau Auto Start Stop Eliminator suits Silverado and Sierra owners who want steady engine operation at stops — commuters who need consistent cabin climate, drivers towing trailers who prefer immediate engine response, and anyone who dislikes frequent engine cycling. It’s aimed at DIY enthusiasts and professional installers who want a reversible, non-invasive solution compatible with 2019–2021 Chevy Silverado 1500 and GMC Sierra 1500 trucks.