2018 Cadillac Ats Electrical Parts

This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator. Read more

10 Alternator / Generator parts for the 2018 Cadillac Ats come from 5 brands — GM GENUINE, FVP, PURE ENERGY and 2 other brands. The "Popular" part is GM GENUINE 84542722.

The New section lists 2 options from GM GENUINE — brand-new units rather than rebuilt ones. GM GENUINE 84542722 is listed in this group.

The Remanufactured section lists 8 options from FVP, PURE ENERGY, REMY and 1 other brand — factory-rebuilt units with new wear components. FVP 11867 is listed in this group.

This table covers the Alternator / Generator bolts. Read more

One part is listed for the 2018 Cadillac Ats — GM GENUINE 11611102.

This table covers the pulleys on the alternator shaft. Typical signs include a growl or chirp that follows engine speed, or a pulley that will not spin freely by hand. Spin each pulley with the belt off. Roughness or play means replace it with the belt. Read more

2 Alternator / Generator Pulley parts are listed for the 2018 Cadillac Ats, from CONTINENTAL and LITENS.

This group includes CONTINENTAL 49986 and LITENS 920860A.

This table covers the Anti-Theft control modules. Read more

One part is listed for the 2018 Cadillac Ats — GM GENUINE 13500158.

This table covers the sirens in the anti-theft system. Read more

One part is listed for the 2018 Cadillac Ats — GM GENUINE 39098012.

This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery. Read more

16 Battery parts are listed for the 2018 Cadillac Ats, from ACDELCO, DEKA, FVP and 5 other brands. DEKA 9A48 carries the "Popular" badge.

The AGM (Extended Life) section lists 15 options from ACDELCO, DEKA, FVP and 4 other brands — grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. DEKA 9A48 is listed in this group.

The Performance AGM (Extended Life + Increased Power) section lists 1 option from FULLRIVER — grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. FULLRIVER FT85094R is listed in this group.

This table covers the positive and ground cables that run from the battery. Typical signs include a stretched or frayed cable, or a control that no longer reaches the end of its travel. Route the new cable through the same clips. A kinked cable binds and fails early. Read more

7 Battery Cable parts for the 2018 Cadillac Ats come from 2 brands — GM GENUINE and ACDELCO.

Part numbers include ACDELCO 23342261, GM GENUINE 23465285 and GM GENUINE 23180437, among others listed above.

This table covers the Battery Current sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

2 Battery Current Sensor parts for the 2018 Cadillac Ats come from 2 brands — GM GENUINE and STANDARD MOTOR PRODUCTS.

Listed part numbers: GM GENUINE 13505369 and STANDARD MOTOR PRODUCTS BSC122.

This table covers the clamps and brackets that secure the battery. Read more

This group shows a single part: DORMAN 390030.

This table covers the Battery Vent tubes. Read more

This group shows a single part: GM GENUINE 85665279.

This table covers the body-control modules that run lighting, locks and wipers. Read more

This group shows a single part: GM GENUINE 13528945.

This table covers the brackets that mount the Body Control Module (BCM). Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

This group shows a single part: GM GENUINE 23235682.

This table covers the resettable circuit breakers in this vehicle's electrical system. Read more

4 Circuit Breaker parts are listed for the 2018 Cadillac Ats, from STANDARD MOTOR PRODUCTS and GM GENUINE.

Part numbers include GM GENUINE 84511649, STANDARD MOTOR PRODUCTS FH58 and STANDARD MOTOR PRODUCTS FH59, among others listed above.

This table covers the Cruise Control Distance sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

One part is listed for the 2018 Cadillac Ats — GM GENUINE 84956402.

This table covers the engine-control modules that run fuel, spark and emissions. Read more

This group shows a single part: GM GENUINE 12725663.

This table covers the brackets that mount the Engine Control Module (ECM Computer). Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

This group shows a single part: GM GENUINE 84013974.

This table covers the replacement fuses for this vehicle's fuse boxes. Typical signs include one circuit dead while its neighbor still works, or a fuse that blows again as soon as you replace it. Match amperage and fuse type. A repeat blow means a short — find it before the next fuse. Read more

22 Fuse parts are listed for the 2018 Cadillac Ats, from BUSSMANN, GM GENUINE and ACDELCO. GM GENUINE 22917202 carries the "Popular" badge.

The 100 Amp section lists 2 options from BUSSMANN and GM GENUINE — grouped under the catalog's "100 Amp" designation — the notes column spells out what sets them apart. BUSSMANN AMI100 is listed in this group.

In the 15 Amp grade, BUSSMANN supplies 1 part: grouped under the catalog's "15 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN FMS15.

In the 150 Amp grade, GM GENUINE supplies 1 part: grouped under the catalog's "150 Amp" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 84070922.

In the 20 Amp grade, BUSSMANN supplies 1 part: grouped under the catalog's "20 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN FMS20.

The 225 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "225 Amp" designation — the notes column spells out what sets them apart. BUSSMANN AMG225 is listed in this group.

The 25 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "25 Amp" designation — the notes column spells out what sets them apart. BUSSMANN FMS25 is listed in this group.

The 250 Amp section lists 1 option from GM GENUINE — grouped under the catalog's "250 Amp" designation — the notes column spells out what sets them apart. GM GENUINE 84116255 is listed in this group.

The 3 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "3 Amp" designation — the notes column spells out what sets them apart. BUSSMANN ATM3LP is listed in this group.

The 30 Amp section lists 1 option from GM GENUINE — grouped under the catalog's "30 Amp" designation — the notes column spells out what sets them apart. GM GENUINE 22917202 is listed in this group.

The 300 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "300 Amp" designation — the notes column spells out what sets them apart. BUSSMANN AMG300 is listed in this group.

In the 350 Amp grade, GM GENUINE supplies 1 part: grouped under the catalog's "350 Amp" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 84116257.

In the 4 Amp grade, BUSSMANN supplies 2 parts: grouped under the catalog's "4 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATM4LP.

In the 40 Amp grade, ACDELCO, GM GENUINE and BUSSMANN supply 3 parts: grouped under the catalog's "40 Amp" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO MAX405.

The 450 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "450 Amp" designation — the notes column spells out what sets them apart. BUSSMANN AMG450 is listed in this group.

The 50 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "50 Amp" designation — the notes column spells out what sets them apart. BUSSMANN FMS50 is listed in this group.

In the 60 Amp grade, BUSSMANN supplies 1 part: grouped under the catalog's "60 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN FMS60.

The 70 Amp section lists 2 options from GM GENUINE — grouped under the catalog's "70 Amp" designation — the notes column spells out what sets them apart. GM GENUINE 84070937 is listed in this group.

This table covers the Garage Door Opener modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

This group shows a single part: GM GENUINE 22850908.

This table covers the HID Lighting ballasts. Read more

This group shows a single part: GM GENUINE 22794558.

This table covers the horns mounted in the front of the vehicle. Read more

13 Horn parts are listed for the 2018 Cadillac Ats, from FIAMM and GM GENUINE. FIAMM 7210223 carries the "Popular" badge.

In the Accessory Replacement grade, FIAMM supplies 6 parts: grouped under the catalog's "Accessory Replacement" designation — the notes column spells out what sets them apart. A representative part number is FIAMM 7210223.

The Standard Replacement section lists 7 options from FIAMM and GM GENUINE — built to original-equipment specification. FIAMM 7201223 is listed in this group.

This table covers the horn contacts in the steering column. Read more

One part is listed for the 2018 Cadillac Ats — GM GENUINE 23311271.

This table covers the Jumper cables. Typical signs include a stretched or frayed cable, or a control that no longer reaches the end of its travel. Route the new cable through the same clips. A kinked cable binds and fails early. Read more

This group shows a single part: GM GENUINE 84234268.

This table covers the receivers that pick up the key-fob unlock signal. Read more

2 Keyless Entry Module / Receiver parts for the 2018 Cadillac Ats come from GM GENUINE.

Part numbers include GM GENUINE 13586853 and GM GENUINE 13523241.

This table covers the key fobs that lock, unlock and start the vehicle. Read more

3 Keyless Entry Remote parts for the 2018 Cadillac Ats come from GM GENUINE.

Part numbers include GM GENUINE 13544033, GM GENUINE 13544034 and GM GENUINE 13544038.

This table covers the replacement shells for the key fob. Read more

This group shows a single part: DORMAN 92051.

This table covers the modules that control the exterior lighting. Read more

This group shows a single part: GM GENUINE 23363789.

This table covers the ultrasonic park-aid sensors in the bumper. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

6 Parking Aid Sensor parts for the 2018 Cadillac Ats come from 3 brands — GM GENUINE, STANDARD MOTOR PRODUCTS and WELLS. The "Popular" part is GM GENUINE 84153946.

Part numbers include GM GENUINE 84153946, STANDARD MOTOR PRODUCTS PPS46 and GM GENUINE 23428269, among others listed above.

This table covers the totally-integrated power modules that distribute body electrical power. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

GM GENUINE supplies the 3 Power Supply Module (TIPM) parts for the 2018 Cadillac Ats.

Listed part numbers: GM GENUINE 86815665, GM GENUINE 84324754 and GM GENUINE 84324755.

This table covers the Rain sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

This group shows a single part: HELLA 011012881.

This table covers the Serial Data Gateway modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

This group shows a single part: GM GENUINE 13599318.

This table covers the Side Object Sensor modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

2 Side Object Sensor Module parts for the 2018 Cadillac Ats come from GM GENUINE.

This group includes GM GENUINE 84087756 and GM GENUINE 84112235.

This table covers the speed sensors on the transmission, transfer case or ABS ring. Typical signs include a dead speedometer, harsh transmission shifts, or a code for vehicle speed. Inspect the tone wheel and the connector before replacing the sensor. Read more

3 Speed Sensor parts are listed for the 2018 Cadillac Ats, from GM GENUINE, STANDARD MOTOR PRODUCTS and WELLS.

Listed part numbers: GM GENUINE 24293689, STANDARD MOTOR PRODUCTS SC696 and WELLS 5S16833.

This table covers the starter motors that crank the engine. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

7 Starter Motor parts for the 2018 Cadillac Ats come from 7 brands — GM GENUINE, TYC, WAI GLOBAL and 4 other brands. The "Popular" part is GM GENUINE 12667973.

The New section: 3 options from GM GENUINE, TYC and WAI GLOBAL. GM GENUINE 12667973 is listed in this group.

The Remanufactured section: 4 options from FVP, PURE ENERGY, REMY and 1 other brand. FVP 12457 is listed in this group.

This group includes GM GENUINE 12667973, TYC 116349 and WAI GLOBAL 16349N and the remaining parts above.

This table covers the Starter Motor Heat shields. Typical signs include a bent shield rubbing a rotor, or rust-through that leaves the backing open. A rubbing shield will eat a new rotor. Straighten or replace it before the wheel goes back on. Read more

One part is listed for the 2018 Cadillac Ats — GM GENUINE 12654121.

This table covers the Yaw sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

One part is listed for the 2018 Cadillac Ats — GM GENUINE 13514500.