What Causes the Intermittent Failure of the Light Combination Switch in Haval H6?

[DeKing]

Haval H6's light combination switch sometimes works and sometimes doesn't due to poor circuit contact. Below are the specific details about the Haval H6: 1. Vehicle Positioning: The Haval H6 is positioned as a compact SUV, available in Blue Label and Red Label versions. 2. Powertrain: It is equipped with two engines: a 1.5T and a 2.0T. The 1.5T engine has a maximum power of 124kW and a peak torque of 285Nm; the 2.0T engine has a maximum power of 145kW and a peak torque of 355Nm. 3. CVVL Technology: The 1.5T engine features CVVL technology. CVVL technology primarily allows for adjusting the timing of valve opening and closing, valve lift, and duration, ensuring that the engine can obtain sufficient air intake under different operating conditions, thereby improving the engine's efficiency.

[LucyMarie]

I've been driving my Haval H6 for over three years and have also encountered the intermittent issue with the light combination switch. To be honest, it's quite annoying. The most likely cause is oxidation or dirt buildup inside the switch contacts. Frequent use allows dust to get in, leading to unstable contact, especially in humid weather. Another possibility is loose wiring connections; excessive vibration can loosen or corrode the connections, causing unstable power supply. I recommend first checking and cleaning the switch, using alcohol swabs to clean the contacts. If that doesn’t work, replace the switch. Additionally, aging circuit boards can cause intermittent faults, which is related to the Haval H6's design. I’ve heard some batches have quality issues, so keeping an eye on it during regular maintenance can help prevent problems. In short, don’t take it lightly—sudden failure while driving at night is dangerous. Get it fixed promptly to avoid turning a minor issue into a major one.

[McPeyton]

From a professional automotive perspective, common causes of lighting switch failure in the Haval H6 are mechanical wear or contact issues. Frequent use leads to contact point wear and fuzzing, while dust accumulation causes poor connectivity—especially when wiring connections loosen or corrode. Voltage fluctuations may also be culprits, such as unstable alternator output affecting switch stability. Early inspection is advised. For minor issues, DIY cleaning by unplugging connectors to remove dust is possible, but handle carefully to avoid damage. Complex cases require part replacement or professional repair—don’t delay until circuit faults or fuse blowouts occur. Minimize excessive switch toggling during drives, and regular maintenance extends lifespan. Safety comes first—driving with failed lights is dangerously hazardous.

[AllieMarie]

I bought a Haval H6 as my first car after graduating from college, and the light switch has been acting up—sometimes working, sometimes not—which is quite frustrating. A friend suggested that the switch might be dirty or the contacts oxidized, as dust can get inside over time and interfere with the signals. Sometimes, large temperature changes can also affect it, causing the wiring to expand or contract and leading to unstable contact. It's best to first try cleaning the surface of the switch or carefully disassembling it to gently clean the contacts. If that doesn’t work, it’s better to take it to a repair shop for inspection, especially since beginners shouldn’t mess with electrical circuits. A simple fix might solve the issue, so don’t let it worsen and affect driving safety.