Hello everyone. Simple question. What is the size of the back-up light bulb for the 2019-2020 Blazer, I would like to replace them for and LED one. I believe is such a shame that the whole car has LED lights with the exemption of that. I would gladly accept any suggestion of which to get or how to install them. Thank you in advance.
921 Bulbs. Funny how you didn't notice your Brake Lights/turn combo bulbs are old fashioned incandescent, one each side within the housing of LED running lights? I've been going on about that for 2 years, since Corvettes had 100% LED since 2014, Camaros since 2016, Traverse since 2018...rear LED lights and LED Brake Lights. The incandescents aren't only slow flashing, but appear dim in the Blazer's housing, especially at ANY angle. For a vehicle priced above $50,000 there's absolutely no excuse in 2019, 2020, 2021, etc for this vehicle to be outfitted this way. Easy fix, change bulbs to 7440 LED, right? WRONG. Here's procedure for replacing Brake Light Bulb in new Blazer: Jack up the vehicle. Remove mud flaps (each side for every step). Remove fender liner screws. Remove rear quarter fender & bumper cover. Don't break any clips. Drop the cover down & don't scratch it. Unbolt light housing that's now removable. Replace the bulb & do the other side. You'll also need to add & mount resistors to stop hyper flashing of LEDs. This is a half day's work at best if you don't make any mistakes & can get bumper cover back on securely.
