INFINITI QX80 intermittent starting issue with no successful diagnostics on INFINITI QX80

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some INFINITI QX80 owners report experiencing intermittent starting issues, which can often be attributed to several common culprits. These include a weak or dead 12v battery, which may prevent the engine from cranking or cause it to crank slowly. Additionally, a faulty starter motor can lead to inconsistent engine turnover, while problems with the ignition switch may result in sporadic starting difficulties. Electrical issues or component malfunctions can also contribute to these starting problems, making it crucial for owners to document occurrences and symptoms for effective diagnosis. To enhance reliability, some owners recommend maintaining the battery by regularly checking its condition and monitoring the charging system. If these measures do not resolve the issue, seeking professional assistance from a qualified technician is advisable to identify the root cause and facilitate necessary repairs.

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