2012 Chevrolet Corvette Owner's Manual - Page 316

10-40 Vehicle Care Vehicle Storage Infrequent Usage: Remove the black, negative (−) cable from the battery to keep the battery from running down. See "Power Window Initialization" in Power Windows on page 2‑18. Extended Storage: Remove the black, negative (−) cable from the battery or use a battery trickle charger. Battery Refer to the replacement number on the original battery label when a new battery is needed. For battery replacement, see your dealer or the service manual. To purchase a service manual, see Service Publications Ordering Information on page 13‑18. { WARNING Batteries have acid that can burn you and gas that can explode. You can be badly hurt if you are not careful. See Jump Starting on page 10‑78 for tips on working around a battery without getting hurt. Some vehicles have a battery maintainer package. Follow the instructions provided with the battery maintainer package to keep the battery charged when the vehicle is not in use. For vehicles without a battery maintainer, see the following information. { WARNING Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling. Rear Axle When to Check Lubricant It is not necessary to regularly check rear axle fluid unless a leak is suspected or an unusual noise is heard. A fluid loss could indicate a problem. Have it inspected and repaired.