ACDelco Door Jamb Switch D6088 (19021203) — OE-Fit Interior Light Control, Direct-Fit Replacement

ACDelco Gold D6088 (19021203) Door Jamb Switch is a premium aftermarket replacement that automatically controls your vehicle’s interior lights when doors open and close.

Designed to match the fit, form, and function of original equipment, the ACDelco Gold D6088 door jamb switch offers reliable on/off control for interior lighting across many vehicle makes and models. This professional-grade part is built to ACDelco specifications for dependability and straightforward installation, making it a practical repair for worn or faulty jamb switches.

What does this door jamb switch do for my vehicle?

The primary role of the door jamb switch is to sense when a door opens or closes and then complete or break the interior light circuit accordingly. When the door opens, the switch activates the dome and map lights; when the door closes, it cuts power to conserve the battery. The switch may also interact with courtesy chimes or security systems in some vehicles.

• Controls interior dome and map light operation
• Prevents unnecessary battery drain by turning lights off
• Works with door-activated chimes and security inputs
• Fits many applications as a high-quality aftermarket replacement

How easy is it to install the ACDelco Gold D6088 switch?

Installation is generally straightforward for anyone with basic automotive DIY skills. The switch is designed to meet OE mounting and terminal specifications so it usually plugs into the factory harness and secures into the original jamb hole. Always consult your vehicle’s repair manual for door panel removal steps and proper torque or retention methods.

• Direct-fit design for common jamb locations
• Plugs into existing wiring harness without splicing in most cases
• Requires simple tools like a trim tool and screwdriver
• Installation time typically ranges from 10–30 minutes per door

Will this switch work with my car’s electrical system?

The ACDelco Gold D6088 is made to meet electrical and mechanical specifications typical of original equipment switches. Compatibility depends on vehicle make, model, and year; checking the OEM part number or application guide ensures proper match. If the switch shares the same terminal count and physical dimensions as your original, it should integrate without further modifications.

• Engineered to OE-style electrical performance
• Compatible where terminal layout and mounting match
• Ideal for replacing worn, sticking, or non-responsive switches
• Verify fit using part number 19021203 or vehicle application list

How durable is the ACDelco Gold D6088 under daily use?

This door jamb switch is built for repeated operation over the life of the vehicle, with materials selected to resist wear and maintain contact reliability. ACDelco’s Gold line targets professional-quality aftermarket performance, so you can expect consistent switching and a clean electrical connection across thousands of cycles. Proper installation and keeping the mounting area clean help extend service life.

• Constructed for long-term mechanical and electrical reliability
• Materials resist corrosion and frequent actuation wear
• Engineered to meet ACDelco quality and performance standards
• Regular inspection prevents dirt buildup and contact issues

Who is this for: The ACDelco Gold D6088 (19021203) door jamb switch is aimed at vehicle owners, mechanics, and fleet technicians who need a dependable replacement for a failing interior light switch. It’s a practical choice for anyone seeking an OE-style aftermarket part that restores proper dome light operation and integrates with existing door systems without extensive modification.