Diagnostics, calibration and programming
When a warning light comes on or something feels wrong, our diagnostic computer quickly identifies the source of most mechanical issues. We calibrate and program on all makes and models.
What we do
Diagnostics for cars, pickups and SUVs of every make, with the high-tech tools and diagnostic computer our shop is stocked with. Calibration and programming on all makes and models, for example when a control module is replaced.
Great service with affordable prices. In one stop, I had my transmission fluid/filter changed and TCM (Transmission Control Module) replaced/re-programmed. Highly recommend.
K.F., from our testimonials

Signs it is time
- A check engine light, or any other warning light
- Rough running, stalling or hesitation
- Shifting that does not feel right
- A replaced module that needs programming or calibration
Not sure? Tell our assistant what the vehicle is doing and the shop will take it from there.
What a visit is like
My experience here was very positive, other shops said it would be a week or two before they could even look at my vehicle. These guys got it in within 48 hours. They called me for authorization after they diagnosed the problem before they moved ahead with the repair and the total cost for their services was very fair and reasonable. I highly recommend Tyler and the others over at One Stop Auto.
B.K., from our testimonialsThe One Stop Auto Repair and Customs provided honest and quality service with respect. The mechanic even worked after business hours to perform the vehicle repair for prompt service and gave contact information for further follow-up questions. The requested work was prioritized and completed as expected.
H.J., from our testimonials
Questions
Do you work on my make?
Yes. We specialize in Ford and service all makes and models of cars, pickups and SUVs, including Chevrolet, GMC, Honda, Toyota and Subaru.
Can you program a new module?
Yes. Calibration and programming on all makes and models is on our service list.
What parts do you use?
As a NAPA AutoCare Center, we exclusively install high-quality parts.
When are you open?
Monday to Friday 8:30am to 5:00pm, Saturday 9:00am to 12:00pm, closed Sunday.
Book it in
Tell our assistant what you need and it passes the details to the shop, or call Grand Forks.