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 Chevrolet Impala LSFACTORY OEM SERVICE PROCEDURE
Removal Procedure
- Remove the rear shelf trim panel. Refer to Trim Panel Replacement - Rear Window Shelf (Impala) or Trim Panel Replacement - Rear Window Shelf (Monte Carlo) in Interior Trim.
- Adjust the acoustical barrier for access.
- Remove the antenna assembly tape from the rear shelf.
- Remove the global positioning system (GPS) antenna from the rear shelf using a small wide-bladed plastic tool in order to release the adhesive.
- Disconnect the GPS antenna cable connector.
- Clean the adhesive residue from the rear shelf using a razor blade and isopropyl alcohol pad and a clean lint-free cloth.
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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