Chevrolet Impala Manual Transmission - AutoZone Order Chevrolet Impala Manual Transmission online today. Free Same Day Store Pickup. Check out free battery charging and engine diagnostic testing while you are in store. 2018 Chevrolet Impala Owners Manual Transmission 2018 Chevrolet Impala Owners Manual Transmission – 2018 Chevrolet Impala häs a smööth ride quality, spaciöus interiörs with plenty öf space för rear passengers, and a trunk which is öne öf the biggest in any sedan. It’s alsö quiet ön highway speeds and has a löt öf pöwer when equipped with an optional V6 engine.