Why OEM Repair Procedures Matter After an Accident

OEM repair procedures are the vehicle manufacturer's instructions for repairing and servicing its vehicles. They can define whether a component may be repaired, where replacement is permitted, which materials or joining methods apply, and what inspections or calibrations are required.

A repair estimate lists work and cost. Manufacturer information helps determine what that work needs to be. The two should support each other.

Similar-looking damage can need different repairs

Two vehicles may have dents in the same location but use different materials, structures and safety equipment. Even a model-year change can affect the applicable instructions. A method suitable for one vehicle is not automatically suitable for another.

This is why a repair plan should be tied to accurate vehicle identification. Tell the shop about modifications and known previous repairs, which may create additional assessment needs.

Procedures influence hidden work

Customers naturally focus on paint and panel appearance. Important operations can also involve concealed joints, corrosion protection, one-time-use items, measurements and system setup.

Ask the shop how it identifies the current procedures relevant to the damaged area. You do not need a complete technical manual, but you should receive a clear explanation of major decisions such as repair versus replacement or an additional calibration charge.

OEM procedures and OEM parts are different concepts

Following manufacturer repair instructions is not the same question as which brand of replacement part is listed on the estimate. Part selection must be evaluated against the procedure, the component's function and the agreed repair scope.

A label saying “OEM part” does not establish that every installation step was performed correctly. Likewise, an insurer's payment approval does not replace a technical assessment. Our parts terminology guide explains the distinctions.

Information needs to be current and specific

Manufacturer repair portals provide access to vehicle information, and resources such as OEM1Stop help identify those portals. Some information requires subscriptions or specialized access. A general repair database or an old printout may not answer every vehicle-specific question.

Ask whether the applicable instructions were checked for your vehicle and repair. This is especially relevant to structural work, restraint systems, alternative materials and driver-assistance equipment.

What a customer can reasonably request

Ask why a major operation is necessary, what procedure supports it and how completion is documented. If insurer approval is pending, ask the shop to identify the disputed operation clearly so the adjuster can review the same issue.

Be cautious about any proposal to omit a required safety-related operation simply to meet a budget. Discuss a documented resolution before authorizing the affected work. For the overall sequence of planning, approval and repair, see the collision repair process.

Sources & further reading

References for the topics discussed. Coverage and repair requirements depend on your policy, vehicle and circumstances.

• OEM1Stop: Manufacturer repair information

  Links to manufacturer repair-information portals. Requirements must be checked for the specific vehicle.