Where is the reverse radar module located on the Envision?

[OCora]

The yellow circle indicates the reverse radar. The reverse radar is a safety assist device for parking or reversing, which can inform the driver of surrounding obstacles through sound or more intuitive displays. It eliminates the troubles caused by the driver's need to look around when parking, reversing, or starting the vehicle, and helps the driver overcome blind spots and unclear vision. The functions of the reverse radar: The reverse radar is a safety assist device for parking or reversing, which can inform the driver of surrounding obstacles through sound or more intuitive displays. It eliminates the troubles caused by the driver's need to look around when parking, reversing, or starting the vehicle, and helps the driver overcome blind spots and unclear vision. The main functions of the reverse radar include: Accurately measuring the distance between the rear of the vehicle and the nearest obstacle; emitting rapid warning sounds when reversing to the limit distance to remind the driver to brake; repeatedly emitting voice warnings to alert pedestrians.

[VonKarter]

Actually, this question is asked by quite a few people. I remember repairing several Envisions before, and the reverse radar module is mostly hidden inside the trunk. It's usually behind the interior trim panel on the left or right side, and in some models, it might be fixed on the inner side of the lining near the spare tire well. If you're looking for it yourself, you'll first need to remove the sound insulation and plastic panels in the trunk to take a look. However, this job is quite hard on the back, so make sure you have all the necessary tools, like trim removal tools and socket wrenches. If you can't find it, try opening the trunk and tracing back along the wiring harness of the radar sensors—the place where the wires converge is usually where the module is located. Older models and aftermarket installations might have different locations, so keep that in mind.

[Alyssa]

Last week I helped my neighbor deal with this issue - the reverse radar on his Buick Envision was intermittently failing. After some troubleshooting, we discovered the module is located inside the rear bumper on the right side of the vehicle. If you open the trunk and feel along the inner side of the bumper, there's a square box attached to the metal frame. This area is too close to the ground and prone to water splashes - when I opened it once, I even found traces of accumulated water inside. So when the module stops working, it's likely not broken but rather the connector got corroded by mud and water. Just spray some WD-40 on the connector and reinstall it - that solved the problem and saved over 600 yuan on a replacement module.

[AlexRose]

The radar module location of the Buick Envision varies in three scenarios: For the 2015-2018 models, it's typically located inside the right rear wheel arch liner, visible after removing the trunk felt lining. Post-2019 models mostly have it relocated to the upper left corner inside the rear bumper. Surprisingly, retrofitted versions are easier to locate - the main unit is usually mounted on the trunk sidewall. You can also determine its position by listening to the alert tones - where the beeping sound comes from, there's a 90% chance the module is in that corresponding area. By the way, only modules labeled with UD or UR codes on their tags are the reverse radar control units - don't confuse them with tire pressure monitoring modules.