What is the reason for the blue P light on a Mercedes-Benz?
2 Answers
The blue P on a Mercedes-Benz stands for Parking-assistance, which means parking assist. When it lights up, the reverse radar will start working. Generally, Mercedes-Benz vehicles automatically activate this function at 35km/h. The following are some notes about the P indicator: 1. When the vehicle speed exceeds 35km/h, the blue P indicator will automatically disappear; 2. When the speed is below 35km/h, if the automatic parking function is not turned off, the blue P will appear and the automatic parking space detection function will be activated; 3. When a small triangular arrow appears next to the blue P, it means a suitable parking space has been detected. Simply shift into reverse, press the OK button on the steering wheel, and follow the prompts on the dashboard. Do not move the steering wheel during the process; just shift gears as prompted.
Last time I drove my sister's Mercedes-Benz C-Class, I encountered a sudden blue P light on the dashboard, which made me quite nervous. Later, I specifically asked a friend at the repair shop and learned that this is Mercedes-Benz's parking indicator light design. It illuminates if you accidentally bump the turn signal stalk after turning off the engine or manually activate the parking lights. Its main purpose is to alert vehicles behind you when temporarily parked on the roadside. Once, I forgot to turn it off overnight and nearly drained the battery by the next morning. Turning it off is simple: just power the car back on and rotate the light switch back to AUTO mode—no need for a special trip to the dealership. This blue light is completely different from the yellow P light with an exclamation mark for the electronic parking brake, so don't confuse them.
