The TCS says it has been inundated with call-outs as freezing temperatures grip the country.
Patrol officers carried out more than two thousand interventions on Monday alone - double the usual number.
Most were caused by flat batteries, which lose capacity in cold weather.
Drivers are being advised to switch off power-hungry devices before starting their cars.
The motoring organisation also warns that leaving engines running unnecessarily is illegal and can lead to an on-the-spot fine.
Employers and unions call on a no vote to 10 million
The country’s biggest employers and trade unions have joined forces against Sunday's population cap initiative, branding it the "chaos initiative".
Geneva prepares for border and road closures
Geneva is preparing for major road, border and lake closures as the G7 summit lands in Evian.
Airports warn of non-Schengen delays
Non-EU travellers arriving at Swiss airports are facing much longer immigration queues, as Europe's new biometric Entry/Exit System bites.
Iran war depressing economic growth
The bank Raiffeisen has cut its Swiss growth forecast for this year and next, blaming the ongoing war in the Middle East.
Police call for accident witnesses
Geneva police are appealing for witnesses after a driver hit a teenage girl on a zebra crossing and drove off.
Parliament says no to more Sunday opening
Shops will not be allowed to open on more Sundays after all.
