- April 12, 2015
- By helocksmiths
- In Automotive, Commercial Locksmith, ECU, Motorcycle
- Tags Engine Module
- 3168
- 2
WHEN KEY PROGRAMMING IS REQUIRED?
MAKING A NEW CAR KEY:
When Key Programming Is Required? After making a new car key, the immobilizer & remote functions need to be programmed before they will enable engine start and remote central locking operation.
REMOTE OR IMMOBILISER FAULT:
When the synchronization between a fob or transponder key and the vehicle is lost, the reprogramming process becomes necessary in order to restore the full functionality. Be very careful you have a professional licensed locksmith reprogramming your vehicle. Some vehicles will lock you out for some time if there were too many programming attempts.
FOB KEY OR TRANSPONDER KEY IS LOST OR STOLEN:
An auto locksmith company should be the second call you are placing after calling the police if one, or both keys are lost or stolen. Reprogramming new car keys requires that the lost or stolen ones be erased from the car memory on some vehicles; this will ensure car keys not present will no longer be paired with the car. Keep in mind some model requires two keys programmed into your immobilizer to start your vehicle.
FOB KEY OR TRANSPONDER KEY’S BATTERY OR THE VEHICLE’S BATTERY HAS RUN OUT:
After replacing the battery, some keys do not require any programming. Other, especially newer models, do require reprogramming or resynchronizing the vehicle keys before they resume operation.
WATER PENETRATION:
Having the fob or transponder key dropped in the water accidentally brings joy to no one. As it goes with most electronic gadgets, these keys are not compatible with water either. Although some of them are watertight, most are not. Sometimes, when water gets inside the remote, it will cause corrosion which stops the communication with the vehicle. If no other damages are visible, a clean-up of the remote, and having the battery replaced and reprogrammed will solve the issue at hand.
Give us a call at 832-598-1144 or get in touch via our website.
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2 COMMENTS
david harvey
December 30, 2024, 9:25 am REPLYwhat are your charges for programming a auto key for a 2016 avalon
Anthony Julien
September 30, 2025, 7:58 pm REPLY1998 Mercedes‑Benz C230 — I have a donor EIS + keys and an ESL simulator (steering lock bypass). My original DME is not authorized to the donor EIS (engine cranks but will not run). Can you bench‑program or write ISN to my DME so it matches the donor EIS, or fit and VIN‑code the donor DME? Tools required: VVDI‑MB / Autel MB / Tango / STAR‑Xentry. Please confirm you can read/write ISN on Mercedes DME and quote bench DME cost. Call/text me at [your phone].