To refill the rear washer fluid:
1. Locate the Washer Fluid Reservoir: This is typically located under the hood, often near the front of the engine compartment. It's usually a clear plastic container, allowing you to see the fluid level. Consult your owner's manual for the exact location if you can't find it readily.
2. Open the Reservoir Cap: Unscrew the cap carefully.
3. Add Washer Fluid: Add washer fluid to the reservoir until it reaches the "MAX" line or is nearly full. Avoid overfilling. Use a washer fluid appropriate for the temperature conditions.
4. Replace the Cap: Securely tighten the cap back onto the reservoir.
The rear washer is simply another nozzle on the same system, so refilling the main reservoir will refill both the front and rear washer systems.