Chevrolet Impala Seat Heater Control Module Replacement Cost

Know what price you should pay to get your vehicle fixed.

The average cost for a Chevrolet Impala seat heater control module replacement is between $264 and $290. Labor costs are estimated between $95 and $121 while parts are priced at $169. Estimate does not include taxes and fees.
Note about price: The cost of this service or repair can vary by location, your vehicle's make and model, and even your engine type. Related repairs may also be needed. Talk with a RepairPal Certified shop to learn which repairs might be right for you.

How do Seat Heater Control Modules work?

Control modules tend to work in the same fashion regardless of the system they control and monitor. For the seat heater, the control module is connected to battery power, the seat heating elements, possibly temperature sensors, seat heater relays, seat heater on and off switches, and the common area network (CAN). When input is sent to activate or deactivate the seat heaters, the seat heater control module (SHCM) will signal the relays to send power to the seat heaters until a specific temperature is reached. Once that temperature is reached, a residual amount of power will be sent to the seat heating elements to ensure the seats stay at their set temperature. Simultaneously, the CAN is notified of the SHCM activity, so the information can be displayed where appropriate - possibly the driver information panel or navigation screen.

What are the symptoms of a bad Seat Heater Control Module?

Erratic operation of the seat heaters sums up most of the symptoms of a failed seat heater control module. The seats may not respond to driver input, may not turn off, may not regulate temperature correctly, or the normal display relating to the seat temperature control settings may become blank due to lack of data.

Can I drive with a bad Seat Heater Control Module?

This is a creature comfort, so there is no urgency in getting the issue repaired. However, if the seats always stay heated, the fuse for the seat heaters should be removed. This will prevent driver fatigue from discomfort, especially on long trips.

How often do Seat Heater Control Modules need replacement?

Seat heater control module failure, like other electronic components, is random, and predictability is guesswork at best. Failure can happen at any rate and any time, however, this is not a common repair. Seat heating systems in most vehicles are seldom used except in cold climates.

How are Seat Heater Control Modules replaced?

Like any other control module, the location of the seat heater control module (SHCM) will be identified, and the technician will then begin removing all obstructing components needed to access and remove the control module. Once accessed and removed, the connectors are cleaned and inspected, and the new module will be installed. After all components are reassembled on the vehicle, the technician will program the control module, if needed, and test the operation of the system to ensure the customer complaint has been corrected.

RepairPal Recommendations for Seat Heater Control Module issues

When dealing with electronic systems, especially if the issue pertains to a control module, we recommend thorough diagnostics before replacing parts. In effort to correct an electronic failure, it would be very easy to spend hundreds of dollars replacing components before realizing the issue is more advanced. In the case of electronic failures, diagnostics is a must.

What to look out for when dealing with Seat Heater Control Module issues

Every possible scenario related to the failure of the seat heater control module can be replicated by one or more failures within the seat heater system. This means that the control module may be blamed for an external issue, or an external component may be blamed for an internal seat heater control module issue. When the issue has been routed to one circuit, the entire circuit should be tested to prove the diagnosis.

Can I replace the Seat Heater Control Module myself?

Except for the very advanced DIY mechanic with a strong understanding of computerized circuit diagnostics and testing, this repair should be left to a professional. Diagnostics of electronic systems are difficult for the untrained person to perform correctly. Unless safety and diagnostic methods are understood and followed properly, this should be left to a professional.