Choose a shop that can scan the affected module and explain the test that confirms the cause before it replaces parts.
This reference supports the stated topic only. Model, model year, equipment, current rule or individual vehicle conditions may differ; check the original source before acting.
Read the FTC original: Auto Warranties and Auto Service Contracts · FTC warranties overview if this article does not open Source date: current web guidance; research checked: 2026-11-01.
For high-risk systems
Brake, SRS, steering, high-voltage and ADAS work needs the correct equipment and qualifications. Ask specifically about that system.
Match the shop to the affected system
A general service shop may be well equipped for emissions codes but lack the software or calibration setup for an ADAS camera, high-voltage battery or certain transmission modules. Ask directly about the make, year, system and function before leaving the car. A certification claim can be checked with the issuing organization; do not assume a logo on an ad covers every specialty.
Get the diagnostic fee and estimate process in writing. A useful estimate identifies the measured failure, proposed work, parts, labor and how authorization works if a new finding changes the price. Ask what warranty the shop gives on its work and what evidence it will provide after the repair.
Good questions at the counter
- Can your equipment read the affected module and preserve its codes and freeze frame?
- Will you check the current bulletin and open recall for this VIN?
- What measurement would disprove the proposed part?
- Who performs calibration or high-voltage work if required?
- Will you provide a written test result and post-repair verification?
Sources and scope
- FTC — Auto Warranties and Auto Service Contracts Document: current web guidance · Research checked: 2026-11-01 · FTC warranties overview
Research snapshot: 2026-11-01. Source documents may have newer revisions. Verify current instructions and VIN eligibility with the manufacturer.