What are the reasons for the Prado's reverse radar not beeping?
2 Answers
If the vehicle's reverse radar does not beep or provide any relevant prompts when approaching obstacles behind, it indicates a possible system malfunction that requires inspection. General troubleshooting methods for reverse radar silence include: 1. Check whether the wiring of the reverse radar at the rear bumper is properly connected. 2. Observe whether the reverse lights illuminate when shifting into reverse gear; if not, inspect the reverse light switch. 3. Open the fuse box and use a multimeter to check the continuity of the fuses related to the reverse radar. 4. The reverse radar module or buzzer may be damaged and require replacement.
My Prado's reverse radar suddenly stopped beeping the other day, which was quite worrying. Guess why? It might be that the sensors were blocked by mud or dust. After driving for a long time, it's inevitable for the car to get dirty. I wiped the sensors near the rear seats with a wet cloth, and it worked fine again. Another common issue is a blown fuse. There's a small radar icon in the trunk's fuse box—try replacing it with a new one; it's low cost. Loose wiring is also a frequent problem, especially after rain when connectors get damp. Replugging them might fix it. Occasionally, the system might glitch—just park, turn off the engine for a few minutes, and restart to resolve it. If the sensors are aging, replacing them isn't too expensive, but you'll need to order matching parts online and install them yourself. In short, start with simple cleaning. If that doesn’t work, head to the 4S shop to check the module—don’t delay and risk a collision. Better safe than sorry!
