No matter if it’s for your own safety, for roadworthiness testing or to avoid a fine, ensuring that your turn signal bulbs are all the time functioning is extremely important. In reality, bulbs are wearing parts that will surely burn out with time and therefore need to be swapped out. You’re most probably in this article because one of your rear turn signals is burnt out and you’re thinking about how to change the bulb of a rear turn signal on you Mercury Grand Marquis, we’ve made this content to help you do it on your own without having to go to your repair shop. In a first step, we will have a look at examining a burnt-out rear turn signal bulb on your Mercury Grand Marquis and in a second part, how to replace the rear turn signal bulb on your Mercury Grand Marquis.

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How do you know if the rear turn signal bulb on your Mercury Grand Marquis is burnt-out or needs to be changed?

When you drive your car you don’t all the time have the occasion to examine all the safety features of your Mercury Grand Marquis. In reality, you are often times in a rush and are likely to get into your car, make your journey and put it down right away without taking the time to do an occasional check-up. It is due to this fact crucial to take some time to once in a while examine the condition of your headlights and turn signals. It’s quite possible that you have a burnt-out rear turn signal on your Mercury Grand Marquis, but you didn’t identify it. Here are the two basic ways to examine if a rear turn signal on your car is out of order or if you need to replace it quickly:

  • When you stop, turn on the ignition on your Mercury Grand Marquis, then alternately turn on your left and right rear turn signals and get out of the car to examine that they are functioning.
  • By paying attention to the sound of your turn signals. In truth, there is an audible signal on each car that notifies you of a rear turn signal bulb burnt out on your Mercury Grand Marquis, you will recognize that the time between each “click” is much closer, this means that you will have to replace the rear turn signal bulb or before. It’s up to you to check and validate which one is burnt out by a visual check as on the first procedure shown above.

You may have another bulb to replace, like the one of your low beam Mercury Grand Marquis or your position lights on Mercury Grand Marquis, don’t hesitate to have a look at our publications to help you to achieve this substitution.

Changing the rear turn signal bulb on my Mercury Grand Marquis

Now let’s go to the most instersting part of this article content, how to replace the rear turn signal bulb on Mercury Grand Marquis? Please note that this technique is quite easy, you will need to access, from the inside of your trunk, your headlight unit, open it and replace the burnt out rear turn signal bulb on your car. If it is a bulb on your front turn signal on your Mercury Grand Marquis, see our specific article content. On the other hand, here are the detailed steps to carry out in order to complete this process accurately:

  • To access the tail light assembly, take off the carpeting or plastic cover to access the tail light assembly.
  • Use a screwdriver or torx wrench (6-pointed star) to open the tail light assembly.
  • Remove the rear indicator bulb from your burnt-out turn signal that you have previously diagnosed by an external visual inspection, for this you will need to make a quarter turn in a counter-clockwise way
  • Change the rear turn signal bulb on your Mercury Grand Marquis. There are two kind of bulbs, transparent bulbs when the cover is orange, or orange bulbs when the cover is transparent, select the right model for your car
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  • Put back in place your rear turn signal bulb and close your tail light block, then, examine your new turn signal bulb is working properly

To discover more tips on the Mercury Grand Marquis, take a look at the Mercury Grand Marquis category.