Why does the Haval H6 show a hill descent control failure and fail to start?

2 Answers
MaciAnn
09/07/25 7:02am
Haval H6 shows a hill descent control failure and fails to start due to reasons such as incorrect gear position, dead battery, or damaged starter motor. Here are the detailed explanations: Incorrect gear position: For automatic transmission models, the vehicle cannot be started if the gear is not in the P position. Therefore, it is necessary to enter the cabin and check whether the gear is placed in the P position. Dead battery: A dead battery is a major reason for failure to start. Normally, the battery voltage must be above 12.4V to start the engine smoothly. If the battery is severely depleted, it must be replaced or jump-started. Damaged starter motor: The starter motor is used to rotate the engine flywheel to start the engine. If it malfunctions, there will be no response from the engine when attempting to start.
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RyleeDella
09/19/25 6:12am
I've been driving a Haval H6 for several years and have encountered the issue where the hill descent control light comes on but fails to activate. This is usually related to electronic system malfunctions, as the hill descent function relies on sensors and computer control modules. Once a problem is detected, the indicator light illuminates, potentially affecting the entire power supply network and causing ignition failure. The most common reason for failure to start is low battery voltage; the system may protectively disconnect to prevent damage, or the hill descent sensor might falsely trigger a restriction. You'll need to scan for trouble codes using a diagnostic tool to see if a module needs replacement. Also, check for loose fuses and wiring connections, as sensors can be easily disrupted by mud or snow in inclement weather. For safety, avoid forcing ignition and directly contact a 4S shop or repair shop for professional diagnostics to avoid disrupting normal driving.
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