Exception in rendering!

Message: window is not defined

ReferenceError: window is not defined
    at new c (/tmp/execjs20161208-83728-113cjm4js:136:3912)
    at m.mountComponent (/tmp/execjs20161208-83728-113cjm4js:47:15602)
    at /tmp/execjs20161208-83728-113cjm4js:49:31860
    at a.r.perform (/tmp/execjs20161208-83728-113cjm4js:47:12503)
    at Object.a [as renderToString] (/tmp/execjs20161208-83728-113cjm4js:49:31821)
    at r (/tmp/execjs20161208-83728-113cjm4js:50:21164)
    at Object.S.ReactOnRails.serverRenderReactComponent (/tmp/execjs20161208-83728-113cjm4js:32:6073)
    at eval (eval at <anonymous> (/tmp/execjs20161208-83728-113cjm4js:173:8), <anonymous>:10:23)
    at eval (eval at <anonymous> (/tmp/execjs20161208-83728-113cjm4js:173:8), <anonymous>:17:3)
    at /tmp/execjs20161208-83728-113cjm4js:173:8

How to Replace a Courtesy Light Switch in Most Cars

exposed interior of door

A courtesy light switch is what signals the courtesy light, located in the passenger compartment, to come on and provide the light necessary to see what you’re doing, especially on a dark night. The courtesy light functions by either completing or interrupting the electrical signal that turns on the courtesy light when you open a door.

There can be several switches in a given vehicle, usually determined by the number of entry doors to the passenger compartment. They can also be found on some rear cargo doors on minivans and sport utility vehicles.

Although most of these courtesy light switches are found primarily in the door jamb, they can also be a part of the door latch assembly. For this article, we are going to focus on the courtesy light switches located in the door jamb.

Part 1 of 3: Locate courtesy light switch

light switch located in door jamb

Step 1: Open door. Open the door that corresponds to the switch in need of replacement.

Step 2: Locate courtesy light switch. Visually inspect the door jamb for the location of the door jamb switch.

Part 2 of 3: Replace courtesy light switch

Materials Needed

  • Screwdrivers
  • Socket set
  • Tape

person removing courtesy light switch bolt with a screwdriver

Step 1: Remove courtesy light switch bolt. Using a screwdriver or socket and ratchet, remove the screw that holds the courtesy light switch in place.

Set screw to the side in a place that it won’t get lost.

Step 2: Pull courtesy light switch from its recess. Carefully pull the courtesy light switch from the recess in which it sits.

Be careful not to snag the connector or wiring that plugs into the back of the switch.

Step 3: Unplug the electrical connector on the back of the switch. Unplug the electrical connector on the back of the courtesy light switch.

Some connectors can be released by hand while others may require the use of a small screwdriver to gently pry the connector away from the switch.

  • Warning: Once the courtesy light switch has been unplugged, do not allow the wiring and/or electrical plug to fall back into the recess. A small piece of tape can be used to tape the wiring or connector to the door jamb, so as to keep it from falling back into the opening.

Step 4: Match up the replacement courtesy light switch with the one being replaced. Visually verify that the replacement courtesy light switch has the same dimensions as the old one.

Also, look to see that the height appears the same and be sure the connector on the replacement switch matches that of the old switch and that the pins are in the same configuration.

Step 5: Plug replacement courtesy light switch into wiring connector. Plug the replacement into the electrical connector.

Part 3 of 3: Verify the function of replacement courtesy light switch

Step 1: Verify function of replacement courtesy light switch. It is easier to verify the function of the replacement courtesy light switch before reinstalling it back into the door jamb.

With all other doors closed, simply depress the plunger on the switch and verify that the courtesy light goes off.

courtesy light switch plugged into wiring on door

Step 2: Reinstall the courtesy light switch. Reinstall the courtesy light switch back into its recess until it is flush with the panel.

Once it is sitting back in its proper position, reinstall the bolt and tighten it until it is secure.

Step 3: Check for proper fitment. Take a moment to sure the installed height is correct. Gently close the door.

Press firmly on the door while paying attention that there is no abnormal resistance to latching.

  • Warning: If there appears to be more resistance to the door latching than normal, this may be a sign that the courtesy light switch is not completely seated or that the wrong switch was acquired. Trying to force the door closed may result in the replacement courtesy light switch being damaged.

The job is complete once the door closes with a normal amount of effort and the operation of the courtesy light switch has been verified. If at any point you feel you could use a hand with replacing your courtesy light switch, contact one of YourMechanic’s certified technicians to come to your home or place of business to perform the replacement.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

Post a question and get free advice from our certified mechanics.

ASK A QUESTION

More related articles

How to Transfer a Car Title in Idaho
In order to prove ownership of a car, you must have the title. However, when a car is sold, given away or inherited, the title needs...
Veteran and Military Driver Laws and Benefits in Idaho
The state of Idaho offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch in the...
Veteran and Military Driver Laws and Benefits in New Mexico
The state of New Mexico offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch...


Related questions

Q: How do I control the light brightness on the instrument panel?

Your car is equipped with several instrument panel lights designed to illuminate the gauges, dials and readouts so you can see them when driving in low-light conditions or at night. You can adjust the brightness of your instrument panel lights...

Q: Car doesn't always start in Park but then will start in Neutral..the dealer says it needs new starter..

Hello - if your starter successfully cranks the engine in Neutral, but not in Park, the starter itself is likely just fine. The problem is with the "Neutral Safety Switch", sometime called a range selector switch. This is the component...

Q: What Kind of Dash Light Bulbs Do Cars Use?

Dash lights use different types of bulbs to illuminate the dash display, warning indicators, and gauges. These bulbs are traditionally a sealed, small element, single filament bulbs of varying sizes depending on the amount of illumination required for the gauge,...