Does what the local Chevy dealer is unable/unwilling to do.
Reviewed By Glenn B (Owingsville, KY) Reviewed for a
Chevy S10 Pickup
—1/26/2015 5:58 AM
After swapping the rear end to a higher gear ratio, I took my truck to the local Chevy dealer to have the speedometer calibrated. They told me that they did not have the codes needed to reprogram to reprogram my truck and that they could no longer get the code. After plugging this little programmer into my computer and downloading the codes it needed, I had my speedometer calibrated in less than 10 minutes.