What is the reason why the Haval H6 cannot start when not in P gear?
4 Answers
Haval H6 cannot start when not in P gear due to lack of fuel. The following are detailed explanations and solutions: Lack of fuel: The fuel gauge shows below the red line, naturally preventing the car from starting. Solution: Add new fuel. Dead battery: This may be caused by prolonged headlight use without turning them off, resulting in battery drain, or the battery's lifespan may have expired. It is generally recommended to replace the battery every two years. Additionally, installing xenon headlights, high-power audio systems, DVDs, etc., can also cause vehicle circuit malfunctions. Solution: Charge the battery promptly. No antifreeze added: Some car owners add water or inferior antifreeze, leading to the entire water system freezing in extremely cold winter conditions, causing the engine to crack, the car's water pump to fail, preventing the car from starting, and damaging other engine components. Solution: Add antifreeze.
I've driven quite a few Haval vehicles, like the H6 with automatic transmission. If it won't start and isn't in P gear, it's mostly likely an issue with the transmission position sensor. This sensor is the car's brain to ensure it only starts when parked. Once it gets dirty, stuck, or the wiring ages, it sends wrong signals thinking the gear isn't in P. There's also the key recognition system—sometimes weak signals make it think you're messing with the gear lever. More commonly, it could be a brake switch problem, since starting requires pressing the brake and being in P gear—this interlock prevents accidental rolling. I suggest turning off the engine and shifting back into P gear first. If that doesn't work, check the sensor or have an expert use an OBD scanner to read the fault codes, and also inspect for loose wiring connectors.
I've been driving for over twenty years and encountered similar situations several times, especially with friends complaining about this issue while driving Haval H6. Essentially, this car is designed to start only in P gear to ensure safety. If you feel the gear isn't properly engaged but you're certain it's in P, the key point lies in the gear detection module or brake linkage device next to the headlight switch. Sometimes, the contacts inside the module wear out or accumulate dust, causing poor contact and making the system mistakenly think you're not in P gear. Circuit issues are also common, such as blown fuses cutting off power or insufficient battery voltage affecting sensor operation. A simple test method: ensure the gear is fully engaged in P, press the brake pedal, and try starting again; if that doesn't work, restart the key system—this often resolves minor faults. Otherwise, seek professional repair at a shop.
I think this is quite crucial. The Haval H6 not starting in non-P gear is a normal protective mechanism. It's designed to prevent accidents caused by accidental movement when starting the car, such as starting in D gear and the car rushing forward to cause harm. The issue might lie with the sensor or circuit—misaligned sensor signals or a faulty switch near the brake pedal could lead the system to mistakenly judge that you're not in a safe position. Occasionally, low battery power or minor software glitches can also trigger this. Don't attempt to dismantle it yourself; it's best to adhere to regular maintenance and check the transmission components.
