Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Theft Deterrent Feature: Notes
The U1C, UB2, and UP0 are equipped with a programmable theft deterrent feature. When the radio has the SEC (armed) mode activated, the radio will enter the LOCK (locked) mode if the power between the battery and the radio is interrupted for more than 20 seconds. While in the locked mode, LOCK appears on the radio display and all radio functions are disabled.
When the vehicle is first purchased or the radio is new or remanufactured, the theft deterrent feature is unarmed. If desired, the customer must program a 4-digit code into the radio to activate the theft deterrent feature.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.