TESLA Model 3 Key fob battery replacement Cost
2017–2023 · Engine, Fuel & Emissions system
Typical range
$51–$120
Parts + labour
Labour hours
0.2–0.5h
At a typical garage
The 12 V battery starts the engine and powers electronics when the car is off. Most batteries last 3–5 years; warning signs include slow cranking, a battery warning light, and electrical gremlins. TESLA Model 3 battery replacement typically costs $51–$120 including the new battery.
Typical parts included
- Key fob battery
What affects the price
- Battery group size and CCA (cold cranking amps) rating
- OEM vs aftermarket brand (Bosch, Varta, Optima)
- Whether the ECU requires a reset or recalibration after replacement
Common questions
How long does this repair take?
Key fob battery replacement on a TESLA Model 3 typically takes 0.2–0.5 hours at a garage.
How often does this need to be done?
For a TESLA Model 3, this is typically needed every 3–5 years, or sooner in extreme hot or cold climates.
Other engine, fuel & emissions system repairs on the TESLA Model 3
- ABS hydraulic unit replacement$595–$1.1k
- ABS sensor replacement$245–$441
- ABS system bleeding$196–$353
- AC compressor clutch replacement$490–$882
- AC compressor replacement$525–$945
Key fob battery replacement cost on similar cars
- BMW 5 Series Sedan$39–$69
- AUDI A6 Avant$35–$63
- MERCEDES BENZ E-Klasse and predecessors$35–$63
- VOLVO S80$39–$69
- SAAB 9-5$35–$63
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