my D4 light on my dash bored/ gear indicator is blinking. It gets pretty anoying after a while. So if any one could help with that it would be greatly appreciated.

also my spedomiter does not work... it works randomly at times but for the most part it stays at 0mph.. HELP ME!! Lol

. Blinking D4 Indicator Light--check for codes. It's likely indicating a transmission problem that requires immediate attention.

. Speedometer--check all underdash fuses, with a test light or multimeter, and check/replace the Variable Speed Sensor (VSS). If problem persists, check/replace the printed circuit board.