How to Remove Wiper Arms 03-07 Cadillac CTS

Difficulty: Beginner · About 30 min · Cadillac Cts

Remove and reinstall the front wiper arms on a 2003–2007 Cadillac CTS, marking their parked positions before loosening the splined arms.

Steps

1. Mark the arm positions

   Remove the caps at the wiper arm bases and place painter's tape on the windshield beside each blade to record its parked angle. This helps return the arms to their original sweep position.

2. Remove the wiper arms

   Remove both 15mm retaining nuts. Rock each arm gently at its base to release it from the splined spindle, taking care not to damage the windshield or cowl.

3. Reinstall the arms

   Align each arm with its tape mark and press it onto the spindle. Reinstall the nuts and tighten them to the vehicle's specification, then refit the caps.

4. Test the wipers

   Operate the wipers at low speed and check that both blades sweep and park correctly without contacting each other or the trim. Adjust their position if needed.

Check your vehicle’s repair manual for exact specifications and fit.