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.

2003 Cadillac Escalade EXTFACTORY OEM SERVICE PROCEDURE

Installation Procedure

WARNING: This page is about a different car, the 2004 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Use the proper battery size or damage to the transmitter may result.

Install a GM P/N 90541381 battery type or equivalent.
Install the transmitter rear cover.

Fig 1: Removing & Installing Transmitter Rear Cover & Battery
Courtesy of GENERAL MOTORS CORP.
Test the transmitter operation.

Chapter Navigation

Return to Chapter: Transmitter Battery Replacement

Factory Service Tools

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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.