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.
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HOMESERVICE MANUALSCHEVROLET2002TAHOE 4.8 V, 4WDREPAIR AND DIAGNOSISGENERAL INFORMATIONCOMPUTER RELEARN PROCEDURESCHRYSLER CORP.PROGRAMMING IGNITION KEYS TO SENTRY KEY IMMOBILIZER MODULEUSING SCAN TOOL
2002 Chevrolet Tahoe 4.8 V, 4WD
Using Scan Tool
2002 Chevrolet Tahoe 4.8 V, 4WDSECTION Using Scan Tool
- Turn the ignition on (transmission in Park/Neutral).
- Use the DRBIII® and select THEFT ALARM, SKIM, then MISCELLANEOUS.
- Select PROGRAM IGNITION KEYS.
- Enter secured access mode by entering the vehicle 4-digit PIN.
- A maximum of eight keys can be learned to each SKIM AT ONE TIME. Once a key is learned to a SKIM it (the key) cannot be transferred to another vehicle.
If ignition key programming is unsuccessful, the DRBIII® will display one of the following messages:
- Programming Not Attempted
The DRBIII® attempts to read the programmed key status and there are no keys programmed in the SKIM memory. - Programming Key Failed
Possible used key from wrong vehicle. SKIM is unable to program key due to one of the following: Faulty ignition key transponder. Ignition key is programmed to another vehicle. - 8 Keys Already Learned, Programming Not Done
SKIM transponder ID memory is full. Obtain ignition keys to be programmed from customer (8 keys maximum). Using the DRBIII®, erase all ignition keys by selecting MISCELLANEOUS and ERASE ALL CURRENT IGN. KEYS. Program all ignition keys. - Learned Key In Ignition
Ignition key transponder ID is currently programmed in SKIM memory.
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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.