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reddit.com/r/SmartCar/comments/1rfcyca

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Reddit thread: Cold climate problems, anyone else?

reddit.com/r/SmartCar/comments/1rfcyca · p. 1 · Applies to: 450

Source: r/SmartCar (score 57, 15 comments) Topic: Cold weather PRNDL/shifter lock, solenoid and brake switch issues Models discussed: 450 Solution status: yes

Problem: PRNDL shifter gets blocked in cold weather/snow, preventing the car from shifting out of Park. Problem occurs in harsh Canadian winters and requires manually lifting a console lever to override, which triggers ABS light.

Solution: Multiple diagnoses provided: (1) Brake switch under car getting stuck due to moisture/frost - fix by kicking brake pedal rapidly; (2) Shift solenoid frozen grease - heat car 20-30 minutes, turn off 30 minutes, restart; (3) Solenoid pin stuck in frozen grease - disassemble console and regrease solenoid, or spray with penetrating oil and white lithium grease; (4) Clutch actuator issue - shift to N then D, repeat if necessary.

Key facts: - Problem occurs specifically in cold weather and snow conditions in Canada - Warming car for 10 minutes insufficient; 20-30 minute warm-up followed by 30 minute cool-down cycle reported as working solution - Root causes identified: brake switch under vehicle prone to moisture/frost damage, shift solenoid grease freezing, or clutch actuator issues - Manual override via console lever possible but triggers ABS light and is unsafe for regular use - Battery replacement did not resolve issue - Multiple users confirmed experiencing similar problems (at least 5 commenters reported same or related symptoms)