The Chinese word for brake pedal is
刹车踏板

shā chē tà bǎn

brake pedal

Chinese Definition

Components
刹
1. Variant of 剎
2. usage. Note difference in composition for the definition above:
3. usage. As simplified form of - ⿰⿱㐅朩刂.
4. usage. As variant form of - ⿰⿱㐅?刂.
车
1. Variant of 車
2. Variant of 卓
踏
1. to step on; to trample; to tread on
2. to investigate onsite
3. (Cantonese, dialectal Hakka) (Used before a number to indicate time, where the number is what the minute hand is pointing to on an analog clock.)
踏三 - quarter past
踏九 - quarter to
踏半 - half past
踏八個半字 - around 42 past
4. (Hokkien, Teochew, Northern Wu) to ride (a bicycle)
踏跤踏車 - to ride a bicycle, MN
板
1. plank; board
木板 - board; plank
玻璃板 - glass board
2. blackboard
板報
3. sluggish; stiff; inflexible
呆板 - sluggish
古板 - stuffy; old-fashioned and inflexible
4. to harden; hardened
5. (internet) board (sub-unit of a larger BBS or imageboard)
6. (music) clapper
7. (music) beat; meter; rhythm (in music or Chinese opera)
行板 - andante
散sǎn板 - sanban
8. to look serious or displeased
9. (literary or Min Nan) wooden coffin
10. (Min Nan) ability; capability; talent
11. (Suzhou) to have to; must
噶聲閒話板是俚說噶。 - That voice must be his., W-SZ, ref=1993, 蘇州方言詞典, page 19
12. Variant of 闆