u/wadbrie

​Hi everyone,

​I'm dealing with a battery drain issue on a 2017 Hyundai Elantra (Avante AD) 1.6 GDI. The car has 55,000 miles on it. If the vehicle sits for about 48 hours, the battery is completely discharged.

​Here is what I’ve checked so far:

​Battery & Alternator: Both have been tested; the alternator is charging at specification, and the battery is in good health.

​Modifications: The car is completely stock with no aftermarket accessories.

​Questions:

​Are there any known TSBs (Technical Service Bulletins) or recalls regarding parasitic draw for this specific model and year?

​With 55k miles, are there common failures in modules like the Smart Key sensors or BCM that prevent the CAN bus from sleeping?

​Are there any specific fuses I should prioritize during a voltage drop test?

​I'm a technician looking for any "usual suspects" or factory-documented issues before I start pulling every fuse.

​Any insights would be greatly appreciated!

​Hi everyone,

​I'm dealing with a battery drain issue on a 2017 Hyundai Elantra (Avante AD) 1.6 GDI. The car has 55,000 miles on it. If the vehicle sits for about 48 hours, the battery is completely discharged.

​Here is what I’ve checked so far:

​Battery & Alternator: Both have been tested; the alternator is charging at specification, and the battery is in good health.

​Modifications: The car is completely stock with no aftermarket accessories.

​Questions:

​Are there any known TSBs (Technical Service Bulletins) or recalls regarding parasitic draw for this specific model and year?

​With 55k miles, are there common failures in modules like the Smart Key sensors or BCM that prevent the CAN bus from sleeping?

​Are there any specific fuses I should prioritize during a voltage drop test?

​I'm a technician looking for any "usual suspects" or factory-documented issues before I start pulling every fuse.

​Any insights would be greatly appreciated!

​Hi everyone,

​I'm dealing with a battery drain issue on a 2017 Hyundai Elantra (Avante AD) 1.6 GDI. The car has 55,000 miles on it. If the vehicle sits for about 48 hours, the battery is completely discharged.

​Here is what I’ve checked so far:

​Battery & Alternator: Both have been tested; the alternator is charging at specification, and the battery is in good health.

​Modifications: The car is completely stock with no aftermarket accessories.

​Questions:

​Are there any known TSBs (Technical Service Bulletins) or recalls regarding parasitic draw for this specific model and year?

​With 55k miles, are there common failures in modules like the Smart Key sensors or BCM that prevent the CAN bus from sleeping?

​Are there any specific fuses I should prioritize during a voltage drop test?

​I'm a technician looking for any "usual suspects" or factory-documented issues before I start pulling every fuse.

​Any insights would be greatly appreciated!

​Hi everyone,

​I'm dealing with a battery drain issue on a 2017 Hyundai Elantra (Avante AD) 1.6 GDI. The car has 55,000 miles on it. If the vehicle sits for about 48 hours, the battery is completely discharged.

​Here is what I’ve checked so far:

​Battery & Alternator: Both have been tested; the alternator is charging at specification, and the battery is in good health.

​Modifications: The car is completely stock with no aftermarket accessories.

​Questions:

​Are there any known TSBs (Technical Service Bulletins) or recalls regarding parasitic draw for this specific model and year?

​With 55k miles, are there common failures in modules like the Smart Key sensors or BCM that prevent the CAN bus from sleeping?

​Are there any specific fuses I should prioritize during a voltage drop test?

​I'm a technician looking for any "usual suspects" or factory-documented issues before I start pulling every fuse.

​Any insights would be greatly appreciated!

​Hi everyone,

​I'm dealing with a battery drain issue on a 2017 Hyundai Elantra (Avante AD) 1.6 GDI. The car has 55,000 miles on it. If the vehicle sits for about 48 hours, the battery is completely discharged.

​Here is what I’ve checked so far:

​Battery & Alternator: Both have been tested; the alternator is charging at specification, and the battery is in good health.

​Modifications: The car is completely stock with no aftermarket accessories.

​Questions:

​Are there any known TSBs (Technical Service Bulletins) or recalls regarding parasitic draw for this specific model and year?

​With 55k miles, are there common failures in modules like the Smart Key sensors or BCM that prevent the CAN bus from sleeping?

​Are there any specific fuses I should prioritize during a voltage drop test?

​I'm a technician looking for any "usual suspects" or factory-documented issues before I start pulling every fuse.

​Any insights would be greatly appreciated!

​Hi everyone,

​I'm dealing with a battery drain issue on a 2017 Hyundai Elantra (Avante AD) 1.6 GDI. The car has 55,000 miles on it. If the vehicle sits for about 48 hours, the battery is completely discharged.

​Here is what I’ve checked so far:

​Battery & Alternator: Both have been tested; the alternator is charging at specification, and the battery is in good health.

​Modifications: The car is completely stock with no aftermarket accessories.

​Questions:

​Are there any known TSBs (Technical Service Bulletins) or recalls regarding parasitic draw for this specific model and year?

​With 55k miles, are there common failures in modules like the Smart Key sensors or BCM that prevent the CAN bus from sleeping?

​Are there any specific fuses I should prioritize during a voltage drop test?

​I'm a technician looking for any "usual suspects" or factory-documented issues before I start pulling every fuse.

​Any insights would be greatly appreciated!

​Hi everyone,

​I'm dealing with a battery drain issue on a 2017 Hyundai Elantra (Avante AD) 1.6 GDI. The car has 55,000 miles on it. If the vehicle sits for about 48 hours, the battery is completely discharged.

​Here is what I’ve checked so far:

​Battery & Alternator: Both have been tested; the alternator is charging at specification, and the battery is in good health.

​Modifications: The car is completely stock with no aftermarket accessories.

​Questions:

​Are there any known TSBs (Technical Service Bulletins) or recalls regarding parasitic draw for this specific model and year?

​With 55k miles, are there common failures in modules like the Smart Key sensors or BCM that prevent the CAN bus from sleeping?

​Are there any specific fuses I should prioritize during a voltage drop test?

​I'm a technician looking for any "usual suspects" or factory-documented issues before I start pulling every fuse.

​Any insights would be greatly appreciated!

​Hi everyone,

​I'm dealing with a battery drain issue on a 2017 Hyundai Elantra (Avante AD) 1.6 GDI. The car has 55,000 miles on it. If the vehicle sits for about 48 hours, the battery is completely discharged.

​Here is what I’ve checked so far:

​Battery & Alternator: Both have been tested; the alternator is charging at specification, and the battery is in good health.

​Modifications: The car is completely stock with no aftermarket accessories.

​Questions:

​Are there any known TSBs (Technical Service Bulletins) or recalls regarding parasitic draw for this specific model and year?

​With 55k miles, are there common failures in modules like the Smart Key sensors or BCM that prevent the CAN bus from sleeping?

​Are there any specific fuses I should prioritize during a voltage drop test?

​I'm a technician looking for any "usual suspects" or factory-documented issues before I start pulling every fuse.

​Any insights would be greatly appreciated!

​Hi everyone,

​I'm dealing with a battery drain issue on a 2017 Hyundai Elantra (Avante AD) 1.6 GDI. The car has 55,000 miles on it. If the vehicle sits for about 48 hours, the battery is completely discharged.

​Here is what I’ve checked so far:

​Battery & Alternator: Both have been tested; the alternator is charging at specification, and the battery is in good health.

​Modifications: The car is completely stock with no aftermarket accessories.

​Questions:

​Are there any known TSBs (Technical Service Bulletins) or recalls regarding parasitic draw for this specific model and year?

​With 55k miles, are there common failures in modules like the Smart Key sensors or BCM that prevent the CAN bus from sleeping?

​Are there any specific fuses I should prioritize during a voltage drop test?

​I'm a technician looking for any "usual suspects" or factory-documented issues before I start pulling every fuse.

​Any insights would be greatly appreciated!

​Hi everyone,

​I'm dealing with a battery drain issue on a 2017 Hyundai Elantra (Avante AD) 1.6 GDI. The car has 55,000 miles on it. If the vehicle sits for about 48 hours, the battery is completely discharged.

​Here is what I’ve checked so far:

​Battery & Alternator: Both have been tested; the alternator is charging at specification, and the battery is in good health.

​Modifications: The car is completely stock with no aftermarket accessories.

​Questions:

​Are there any known TSBs (Technical Service Bulletins) or recalls regarding parasitic draw for this specific model and year?

​With 55k miles, are there common failures in modules like the Smart Key sensors or BCM that prevent the CAN bus from sleeping?

​Are there any specific fuses I should prioritize during a voltage drop test?

​I'm a technician looking for any "usual suspects" or factory-documented issues before I start pulling every fuse.

​Any insights would be greatly appreciated!

​Hi everyone,

​I'm dealing with a battery drain issue on a 2017 Hyundai Elantra (Avante AD) 1.6 GDI. The car has 55,000 miles on it. If the vehicle sits for about 48 hours, the battery is completely discharged.

​Here is what I’ve checked so far:

​Battery & Alternator: Both have been tested; the alternator is charging at specification, and the battery is in good health.

​Modifications: The car is completely stock with no aftermarket accessories.

​Questions:

​Are there any known TSBs (Technical Service Bulletins) or recalls regarding parasitic draw for this specific model and year?

​With 55k miles, are there common failures in modules like the Smart Key sensors or BCM that prevent the CAN bus from sleeping?

​Are there any specific fuses I should prioritize during a voltage drop test?

​I'm a technician looking for any "usual suspects" or factory-documented issues before I start pulling every fuse.

​Any insights would be greatly appreciated!

​Hi everyone,

​I'm dealing with a battery drain issue on a 2017 Hyundai Elantra (Avante AD) 1.6 GDI. The car has 55,000 miles on it. If the vehicle sits for about 48 hours, the battery is completely discharged.

​Here is what I’ve checked so far:

​Battery & Alternator: Both have been tested; the alternator is charging at specification, and the battery is in good health.

​Modifications: The car is completely stock with no aftermarket accessories.

​Questions:

​Are there any known TSBs (Technical Service Bulletins) or recalls regarding parasitic draw for this specific model and year?

​With 55k miles, are there common failures in modules like the Smart Key sensors or BCM that prevent the CAN bus from sleeping?

​Are there any specific fuses I should prioritize during a voltage drop test?

​I'm a technician looking for any "usual suspects" or factory-documented issues before I start pulling every fuse.

​Any insights would be greatly appreciated!

​Hi everyone,

​I'm dealing with a battery drain issue on a 2017 Hyundai Elantra (Avante AD) 1.6 GDI. The car has 55,000 miles on it. If the vehicle sits for about 48 hours, the battery is completely discharged.

​Here is what I’ve checked so far:

​Battery & Alternator: Both have been tested; the alternator is charging at specification, and the battery is in good health.

​Modifications: The car is completely stock with no aftermarket accessories.

​Questions:

​Are there any known TSBs (Technical Service Bulletins) or recalls regarding parasitic draw for this specific model and year?

​With 55k miles, are there common failures in modules like the Smart Key sensors or BCM that prevent the CAN bus from sleeping?

​Are there any specific fuses I should prioritize during a voltage drop test?

​I'm a technician looking for any "usual suspects" or factory-documented issues before I start pulling every fuse.

​Any insights would be greatly appreciated!

​Hi everyone,

​I'm dealing with a battery drain issue on a 2017 Hyundai Elantra (Avante AD) 1.6 GDI. The car has 55,000 miles on it. If the vehicle sits for about 48 hours, the battery is completely discharged.

​Here is what I’ve checked so far:

​Battery & Alternator: Both have been tested; the alternator is charging at specification, and the battery is in good health.

​Modifications: The car is completely stock with no aftermarket accessories.

​Questions:

​Are there any known TSBs (Technical Service Bulletins) or recalls regarding parasitic draw for this specific model and year?

​With 55k miles, are there common failures in modules like the Smart Key sensors or BCM that prevent the CAN bus from sleeping?

​Are there any specific fuses I should prioritize during a voltage drop test?

​I'm a technician looking for any "usual suspects" or factory-documented issues before I start pulling every fuse.

​Any insights would be greatly appreciated!