What does the 'H' display mean in Tesla?

1 Answers
LeviAnn
07/29/25 5:14pm
Tesla displaying 'H' refers to the water temperature gauge. Here are the relevant details: Automotive water temperature gauge: Typically uses a 60°C–120°C scale or is labeled with Cold (C)–Hot (H). When a car engine operates, gasoline combustion generates significant heat, partially expelled through the exhaust pipe and partially transferred to the engine block. Excessive block temperature can cause thermal expansion and damage to components, necessitating water circulation for cooling. High water temperature indication: Normally, the needle points to the middle of the gauge when the temperature is optimal (varies by model; consult the warranty manual). However, the gauge's right side features a red zone marking the high-temperature range. If the needle approaches this zone, it indicates elevated water temperature. Continued driving without intervention may easily lead to coolant boiling ("overheating").
Was this review help?
13
3
Share
More Forum Discussions

What does 4S mean in automotive 4S dealerships?

4S represents a one-stop service integrating sales, after-sales service, spare parts, and information feedback. More details about 4S dealerships are as follows: 1. Background of 4S: The 4S in 4S dealerships is an abbreviation of four words starting with the letter S, collectively forming 4S. These four words are Sale, Sparepart, Service, and Survey. 2. Meaning of Sale: It refers to sales, which is the core business of a 4S dealership and the foundation for the brand's survival. It is also the primary reason consumers visit a 4S dealership. Only by selling vehicles can the brand and the 4S dealership have a purpose, and consumers will have further opportunities to engage with the dealership. 3. Meaning of Sparepart: It refers to spare parts. Essentially, a car is a machine, and like any machine, it can break down and require replacement parts. In the market, besides official parts produced by manufacturers, there are also unofficial parts made by other companies. For consumers, purchasing parts outside a 4S dealership increases the risk of buying counterfeit products. The significance of a 4S dealership here is to ensure consumers can purchase official parts at reasonable prices. 4. Meaning of Service: It refers to service. Vehicles require maintenance and repairs when they break down. A 4S dealership provides a trustworthy and official place for vehicle maintenance and repairs. 5. Meaning of Survey: It refers to information feedback. Manufacturers need market sales data to understand their competitiveness and a platform to communicate with consumers to gather feedback on vehicles and the brand. The 4S dealership plays this role.
11
2
Share

How many days is the Mid-Autumn Festival toll-free on highways?

Highways are not toll-free during the Mid-Autumn Festival. Below is relevant information about toll-free highways: 1. Toll-free highway periods: Toll-free periods apply during four national statutory holidays—Spring Festival, Qingming Festival, Labor Day, and National Day—as well as the consecutive holidays determined by the State Council for these statutory holidays in the same year. The toll-free period starts at 00:00 on the first day of the holiday and ends at 24:00 on the last day (for ordinary roads, the toll-free status is determined by the time the vehicle passes the toll lane of the toll station; for highways, it is determined by the time the vehicle exits the toll lane at the exit). 2. Relevant laws: The scope of toll-free highways includes those that comply with the "Highway Law of the People's Republic of China" and the "Regulations on the Administration of Toll Roads," and have been legally approved (including toll bridges and tunnels). Whether airport highways are toll-free is decided by the provincial (municipal or autonomous region) governments.
13
1
Share

Which gear should an automatic transmission car be in when towing?

When towing an automatic transmission car, shift to N (Neutral) gear, release the handbrake, and lift the drive wheels. More details on towing an automatic transmission car are as follows: 1. Shift to N gear when towing: During towing, the vehicle gains power from the towing vehicle's pull. The gear selection must be Neutral (N gear) because only in N gear will the transmission cut off all power transmission. If left in D (Drive) gear, the towing vehicle would not only bear the weight of the towed car but also resist its engine and transmission. P (Park) gear is even worse—forcing towing with the transmission locked can cause immeasurable damage to the transmission. Only N gear is the most suitable. 2. Lift the drive wheels when towing: If an automatic transmission car needs to be towed to a repair shop due to a malfunction, it's best to lift the drive wheels before towing to avoid damaging the transmission. When a car breaks down, the automatic transmission oil pump stops working, leading to a lack of lubrication and proper cooling for the components. If the drive wheels remain on the ground during towing, they will force the transmission to operate, which can damage it over a certain distance. If lifting the wheels is not possible, ensure the towing speed does not exceed 5 km/h, and the towing distance should be kept as short as possible, preferably under 20 km. 3. Towing precautions: The towing vehicle must always consider the towed car behind it. Starting and stopping should follow the principle of "slow and steady." A sudden start could lead to secondary accidents, damaging the tow rope or the towed car. Throughout the towing process, the towing vehicle must remain mindful of the towed car's condition.
18
3
Share

Can Car Registration Be Completed in One Day?

Under normal circumstances, the entire registration process takes approximately 3-4 hours. Most vehicle management offices operate efficiently, and some large cities even have self-service machines for handling procedures, which can significantly reduce the registration time. Most people can complete the registration process within 3 hours, provided that the owner has prepared all the necessary documents in advance. The car registration process is as follows: 1. Obtain the vehicle certificate of conformity: The vehicle certificate of conformity is crucial as it is the primary document for vehicle registration. Currently, some car 4S stores delay issuing the certificate of conformity, which can postpone the registration. Therefore, it is essential to obtain the vehicle certificate of conformity as soon as possible. Communicate firmly with the 4S store to avoid unnecessary delays. 2. Keep the triplicate car purchase invoice: After purchasing the car, the 4S store will issue a triplicate car purchase invoice. It is important to keep this invoice safe as it will be needed for subsequent registration procedures. The invoice consists of red, yellow, and blue copies. Generally, the red and yellow copies are submitted, while the yellow copy is kept for personal records. 3. Pay the vehicle purchase tax and obtain the tax certificate: After purchasing the vehicle, promptly pay the vehicle purchase tax, usually at the nearest vehicle management office. Upon successful payment, you will receive the original and duplicate tax certificates, which should be kept safely. 4. Register and inspect the vehicle at the vehicle management office: Once all documents are ready, proceed to the vehicle management office to register and apply for a license plate. First, a specialized traffic police officer will inspect the vehicle, focusing on the vehicle identification code, exterior appearance, and warning triangle plate. Ensure these are prepared in advance. 5. Select the vehicle license plate number: After the vehicle inspection, you can choose a license plate number at the vehicle management office lobby. Typically, there are two options: self-selection or random selection. You can choose the method that suits you best.
11
0
Share

What to Do When the Car Steering Wheel Locks?

The steering wheel lock is a very basic anti-theft feature of a car. Below is a detailed explanation of the steering wheel lock and solutions: 1. Reasons for the steering wheel lock: The principle involves a spring-controlled steel pin activated by turning the key. When the key is removed, any movement of the steering wheel causes the steel pin to snap into a pre-drilled hole, locking the steering wheel in place to prevent turning. In this locked state, the steering wheel cannot be turned, the key cannot be turned, and the car cannot be started, thereby achieving anti-theft. 2. How to unlock the steering wheel: Press the brake, hold the steering wheel with your left hand and gently shake it, while simultaneously turning the key with your right hand to unlock. If you're not skilled, you might not succeed on the first try. Don't worry; just remove the key and repeat the steps a few times. 3. Keyless start models: The method is basically similar to those with keys, except for the step of inserting the key. Press the brake, turn the steering wheel left and right, then press the start button to start the car. 3. How to avoid locking the steering wheel: Steering wheel locks often occur with novice car owners who, after parking and turning off the engine, notice the steering wheel isn't straight and habitually try to straighten it by hand, immediately triggering the anti-theft function. Therefore, after turning off the engine, try not to touch the steering wheel. If you need to straighten it, start the engine first to operate.
16
1
Share

Why Does the Car Air Conditioner Squeak When Turned On?

Air conditioner noise is generally caused by the air conditioner compressor, and the sound can be felt near the compressor. Such noise can be divided into three situations: 1. Contaminated refrigerant: Caused by air and moisture mixed into the refrigerant; 2. Internal machine issues: Damage to the internal mechanical structure of the compressor; 3. The dryer itself: The dryer has been used for a long time, leading to reduced efficiency; Additional information: Tips for using the air conditioner in the car: On hot days, after getting into the car, open all the windows first, turn on the external circulation system of the air conditioner to expel all the hot air. After the temperature inside the car drops, close the windows, then turn on the air conditioner and adjust it to a suitable temperature.
14
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.