Keep the dashboard 4WD light working with the Standard Ignition 4WD Indicator Light Switch (TCA-4). This switch monitors four-wheel-drive engagement and completes the circuit that illuminates the 4WD indicator lamp, letting the driver confirm when the system is engaged. It's a direct-fit replacement for a long list of GM trucks and SUVs, including the 1999 Cadillac Escalade, 1992-1999 Chevrolet Blazer, 1988-1999 Chevrolet K1500, 1988-2000 Chevrolet K2500, 1988-2000 Chevrolet K3500, 1995-2000 Chevrolet Tahoe, 1992-2000 GMC Yukon, and more — see the Buyer's Guide tab for the full application and engine list.
- Copper alloy conductors: deliver strong electrical conductivity with low resistive losses.
- 100% tested: each switch is verified for both mechanical and electrical switching performance.
- Robust design and high-grade materials: built to meet the demands of the service professional.
- OE ignition experience: produced by a global manufacturer of original-equipment ignition products with quality control from componentry to finished part.
Signs the original switch may need replacing include a 4WD indicator lamp that won't light when four-wheel drive is engaged, or one that stays on. Diagnose the cause first, since these symptoms can have other sources.
Interchange: FWD11 · SW3829 · FWD16 · 12540004 · 15693423
This part cross-references / interchanges with the following part numbers:
FWD11, SW3829, FWD16, 12540004, 15693423
