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

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

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

4.Four-direction rearview mirror adjustment: Rotary knob adjust left and right rearview mirror angle up, down, left and right.

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

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

1. Model Compatibility Distinction

LD-0301906 (OE 20945129) only fits 2008–2012 Chevrolet Cobalt, HHR, Equinox and Pontiac Torrent. It cannot match Chevrolet Cruze, Epica, Silverado and other series, and cannot interchange with simple window switch LD-03019 without mirror adjustment function, nor three-color interior panel window switches OE22968506 series (LD-0301903 / 04 / 05).

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;
4. Child lock button malfunction, rear window buttons cannot be locked;
5. Original switch shell aging cracking, function icons worn off completely.