Shop Resource
Static vs Dynamic ADAS Calibration, Explained
Static calibration aims a camera or radar against manufacturer targets at precise distances inside the shop. Dynamic calibration completes the aim with a guided road drive at set speeds. Many vehicles require one, some require the other, and many require both — always per the OEM procedure.
What static calibration is
Static calibration places OEM-specified targets — boards, mats, or reflectors — at exact distances and heights in front of the vehicle, on a level floor, in a controlled bay. The scan tool then teaches the sensor its reference using those targets. It demands space, a level floor, controlled lighting, and an accurately established vehicle centerline.
What dynamic calibration is
Dynamic calibration completes the aim by driving the vehicle at set speeds on roads with clear lane markings while the scan tool guides the process. It depends on good conditions: GM, for example, specifies a 35–56 mph drive on a divided highway with visible lane markings, and notes that poor markings, weather, or a dirty windshield can stop it from finishing.
Why some vehicles require both
Many late-model vehicles require a static calibration to set the baseline and a dynamic drive to confirm it. Skipping either half leaves the system incomplete. The procedure — not the shop's convenience — dictates which is required.
The conditions each needs
Static needs space and a level floor; Toyota, for instance, requires establishing an accurate vehicle centerline before any target is placed. Dynamic needs clear roads and markings. A working repair bay or a quick test drive rarely meets these by accident — which is exactly why calibration is a specialized service.
Sources
- General Motors — Doc 5577683, "GM Calibration Requirements 2020" (May 2020)
- Toyota — T-TT-0503-18, "Target Placement for TSS and BSM Calibration" (Sep 2019)
Frequently asked
Quick answers
- Does my vehicle need static, dynamic, or both?
- It depends on the make, model, and system. Many vehicles require both — a static target setup plus a dynamic road drive. The OEM procedure specifies which; it shouldn't be guessed.
- Why can't a dynamic calibration just be a normal test drive?
- Dynamic calibration must run at specific speeds on roads with clear lane markings while the scan tool guides it. Conditions like poor markings, weather, or a dirty windshield can prevent it from completing.
- Source: General Motors — Doc 5577683, "GM Calibration Requirements 2020" (May 2020)