Localizing the car manual means keeping the driving and safety warnings, the charging, service and fault instructions, and the version consistency between sales, delivery and after-sales in a single versioned record, so no one argues from different documents. The manual should at least cover safety warnings, driving, service, charging and fault handling, match the physical vehicle version, and have the translation reviewed by technical staff. Note the driving and safety warnings in the order file and attach the basis for the charging, service and fault instructions; pause the next step if the version consistency between sales, delivery and after-sales changes. When finished, have the person responsible for car manual localization sign off, record the date of the documents used, and note any exceptions that must be cleared before the next step.
For your later review, see also How can dealers adapt Chinese car marketing for Arabic-speaking showroom visitors?. The supply and warranty responsibility for car manual localization must be written into the contract or service agreement; a supplier's verbal assurances are no substitute for a long-term commitment.