Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Light Duty Models Under 8500 GVWR

Initial Refill

THM 400 (3L80) 4.1 Liters (4.3 Quarts)

THM 4750 (3L80-HD) 4.1 Liters (4.3 Quarts)

THM 700-R4 (4L60, 4L60E, 4L80E) 4.7 Liters (5.0 Quarts)

With the engine at operating temperature, shift transmission through all gears. Let engine slow idle in PARK for 3 minutes or more. Check fluid level add fluid as needed.