2025 Cadillac Optiq Electrical Parts

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

5 Battery parts for the 2025 Cadillac Optiq come from 3 brands — ACDELCO, DEKA and FVP. The "Popular" part is ACDELCO 47AGM.

Part numbers include ACDELCO 47AGM, ACDELCO EVLN2AGM and ACDELCO 47SAGM, among others listed above.

This table covers the Battery Terminal Bolt nuts. Read more

GM GENUINE supplies both parts for the 2025 Cadillac Optiq.

Listed part numbers: GM GENUINE 11546449 and GM GENUINE 11570961.

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

GM GENUINE supplies both parts for the 2025 Cadillac Optiq.

This group includes GM GENUINE 13563015 and GM GENUINE 13568206.

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

18 Fuse parts for the 2025 Cadillac Optiq come from 2 brands — GM GENUINE and ACDELCO. The "Popular" part is GM GENUINE 15305191.

In the 10 Amp grade, GM GENUINE supplies 1 part: grouped under the catalog's "10 Amp" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 19209792.

In the 100 Amp grade, GM GENUINE supplies 1 part: grouped under the catalog's "100 Amp" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 84070942.

The 15 Amp section lists 2 options from ACDELCO and GM GENUINE — grouped under the catalog's "15 Amp" designation — the notes column spells out what sets them apart. ACDELCO ATM1525 is listed in this group.

The 150 Amp section lists 1 option from GM GENUINE — grouped under the catalog's "150 Amp" designation — the notes column spells out what sets them apart. GM GENUINE 84070922 is listed in this group.

In the 175 Amp grade, GM GENUINE supplies 1 part: grouped under the catalog's "175 Amp" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 15305191.

The 20 Amp section lists 2 options from GM GENUINE and ACDELCO — grouped under the catalog's "20 Amp" designation — the notes column spells out what sets them apart. GM GENUINE 12004009 is listed in this group.

In the 25 Amp grade, ACDELCO supplies 1 part: grouped under the catalog's "25 Amp" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO ATM2525.

In the 250 Amp grade, GM GENUINE supplies 1 part: grouped under the catalog's "250 Amp" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 84116255.

In the 30 Amp grade, GM GENUINE supplies 1 part: grouped under the catalog's "30 Amp" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 22917202.

The 350 Amp section lists 1 option from GM GENUINE — grouped under the catalog's "350 Amp" designation — the notes column spells out what sets them apart. GM GENUINE 84116257 is listed in this group.

The 40 Amp section lists 2 options from ACDELCO and GM GENUINE — grouped under the catalog's "40 Amp" designation — the notes column spells out what sets them apart. ACDELCO MAX405 is listed in this group.

In the 5 Amp grade, ACDELCO supplies 1 part: grouped under the catalog's "5 Amp" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO ATC525.

In the 50 Amp grade, ACDELCO supplies 1 part: grouped under the catalog's "50 Amp" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO MAX50.

In the 70 Amp grade, GM GENUINE supplies 2 parts: grouped under the catalog's "70 Amp" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 84070937.

This table covers the Fuse Box covers. Read more

4 Fuse Box Cover parts for the 2025 Cadillac Optiq come from GM GENUINE.

Listed part numbers: GM GENUINE 85524381, GM GENUINE 87861034 and GM GENUINE 87861035, plus the other parts above.

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

This group shows a single part: GM GENUINE 87840626.

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

GM GENUINE supplies the 6 Keyless Entry Module / Receiver parts for the 2025 Cadillac Optiq. GM GENUINE 85026365 carries the "Popular" badge.

This group includes GM GENUINE 85026365, GM GENUINE 85026366 and GM GENUINE 85026367 and the remaining parts above.

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

One part is listed for the 2025 Cadillac Optiq — GM GENUINE 13560554.

This table covers the Park Assist (PAS) Camera 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 86558042.

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

One part is listed for the 2025 Cadillac Optiq — GM GENUINE 87821667.

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

This group shows a single part: GM GENUINE 86285468.

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

GM GENUINE supplies both parts for the 2025 Cadillac Optiq.

Listed part numbers: GM GENUINE 85880852 and GM GENUINE 85880857.

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

One part is listed for the 2025 Cadillac Optiq — GM GENUINE 13572690.

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

GM GENUINE supplies the 4 Side Object Sensor Module parts for the 2025 Cadillac Optiq.

Part numbers include GM GENUINE 85698872, GM GENUINE 85698873 and GM GENUINE 86553723, among others listed above.

This table covers the Wiring Harness clips. Read more

One part is listed for the 2025 Cadillac Optiq — GM GENUINE 11589295.

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

This group shows a single part: GM GENUINE 85532096.