1.Four-door independent one-touch auto up & down control, separate single-key lift/lower for each vehicle window.

2.Built-in window anti-pinch protection circuit: Window automatically rolls down when obstacles detected during closing to prevent hand pinching.

3.Child safety lock function: One key lock all rear passenger window buttons to avoid child misoperation.

4.Multi-direction rearview mirror adjustment: Rotary knob control left/right mirror up, down, left, right angle adjustment, independent button for mirror folding/unfolding.

5.Anti-vibration & dust-proof circuit design, stable signal output under bumpy road driving.

6.Plug-and-play replacement, all window & mirror functions recover instantly after connecting harness without ECU programming.

1. Model Compatibility Distinction

LD-0301903 (OE 22968506) is only suitable for 2014–2018 Chevrolet Silverado, Sierra, Tahoe, Yukon. It cannot match Chevrolet Cruze, Epica, Cobalt and other series, and cannot interchange with window switches without mirror adjustment function like LD-03019. This is black panel variant, there is also beige/tan panel version for matching interior trims.

2. Pre-delivery Full QC Test Items

1. 50,000 times button pressing & knob rotation durability test
2. High-low temperature thermal shock aging test
3. Dustproof & waterproof spray sealing performance test
4. 12V car voltage overload protection test
5. Simulated road bump anti-vibration endurance test

3. Supply Advantage

Long-term stable ready stock, support small sample trial orders and full-container bulk export. Main supply cross-border auto parts wholesalers, overseas auto repair shops and auto parts retail stores.

4. Step-by-Step Plug & Play Installation Instruction

1. Pry open front left door interior trim panel with plastic pry tool;
2. Unplug multi-pin wiring harness connector behind master window switch;
3. Remove fixing clips and take out damaged original switch;
4. Install new switch, lock clips and reconnect wiring harness;
5. Reinstall door trim panel, window and mirror adjustment functions work normally without ECU programming.

5. Common Replacement Failure Scenarios

1. Four window buttons insensitive or completely invalid, glass cannot lift or lower;
2. Anti-pinch function fails, window cannot roll back automatically when blocked;
3. Mirror adjustment knob broken, rearview mirror cannot adjust angle or fold;
4. Child lock button malfunction, rear window buttons cannot be locked;
5. Original switch shell aging cracking, function icons worn off completely.