How to Turn on the Rearview Mirror Heating in the LaCrosse?
4 Answers
Method to activate the rearview mirror heating in the LaCrosse: It is turned on via a button. The button is located on the vehicle's air conditioning control panel. The rearview mirror heating button is not a standalone button; it shares the same button as the rear window defroster. The rear window defroster button features a rectangular frame with three upward-curving arrows at the bottom. The LaCrosse is a new mid-to-high-end sedan introduced by SAIC-GM, with dimensions of 5026mm in length, 1866mm in width, and 1459mm in height, and a wheelbase of 2905mm. The LaCrosse adopts a front-engine, front-wheel-drive layout, with a suspension system comprising MacPherson struts at the front and a multi-link setup at the rear.
The rearview mirror heating button in my LaCrosse is located in the center console’s air conditioning control area—it’s the square icon with wavy lines, sharing the same button as the rear defroster. It’s especially useful during summer rainstorms or winter frost, as pressing it automatically heats the mirror to clear fog. A reminder: this feature is temperature-limited and won’t activate if the temperature exceeds 20°C (68°F), and it automatically shuts off after 15 minutes to protect the circuit. Last time during heavy rain, I forgot to press it and ended up with foggy mirrors, nearly scraping the guardrail. Now, whenever I turn on the wipers, I instinctively hit the heating button. Remember, it only works when the engine is running—pressing it while the car is off will light up the indicator but won’t have any effect.
The heated mirrors on the LaCrosse are really thoughtful, and the operation is super simple. Look near the AC control panel for a small square icon with three curved arrows – press and hold for 3 seconds until the indicator light comes on. It works wonders when mirrors fog up in rain, clearing your view within 5-6 minutes. The smart design automatically deactivates in high temperatures to prevent overheating, and it's synced with the rear defroster. These heated mirrors are lifesavers during highway drives in heavy rain – slight warmth when touching the activated mirror surface is normal. Once after snowfall when my mirrors froze, it took a few minutes after activation to show effect; remember not to impatiently press the button again as it may cancel the function.
To activate the rearview mirror heating in the LaCrosse, carefully look at the air conditioning control area. Press the button with a square and zigzag wave pattern inside. This function is actually linked to the rear window defogger, and within three minutes of activation during rain or snow, water droplets on the mirror will evaporate. It's recommended to turn it on after the engine is running for more stable battery voltage and better effectiveness. This feature is essential when encountering crosswinds and heavy rain on highways, so remember to activate it in advance. The button indicator light will illuminate when in operation, and the system automatically deactivates when the temperature exceeds 20 degrees Celsius.
