U1064 on Chevrolet
Lost Communication With Body Control Module (Manufacturer-Specific)
U1064 on Chevrolet vehicles indicates lost communication with body control module (manufacturer-specific). Au7o has documented this code across 1 Chevrolet model — most commonly on Malibu. U1064 is a manufacturer-specific network code that, on GM-family vehicles, indicates a module has lost serial-data communication with the Body Control Module (BCM). Each module is expected to send periodic 'I'm alive' messages, and when those messages stop arriving from the BCM for several seconds the code sets. Because the BCM controls many body and convenience functions, losing it can cause a range of electrical and feature problems. Typical repair costs on Chevrolet range from $300 to $1,200, depending on the specific model and root cause.
Common Causes of U1064
- •Corroded or loose BCM ground connection
- •Damaged Class 2 / data bus wire (chafed, pinched, broken)
- •Faulty Body Control Module
- •Loose or corroded BCM connector pins
- •Low or unstable battery voltage
- •Water intrusion at connectors or module
- •Blown fuse feeding the BCM
U1064 on Chevrolet by Model
Chevrolet Malibu(1 issue)
- Body Control Module and Instrument Cluster Electrical Faults Causing Gauges, Warning Lights, and Accessory Malfunctions2004-2007
Owners of the 2004-2007 Malibu frequently report erratic gauges, warning chimes, power door lock issues, retained accessory power problems, and intermittent no-crank or lighting anomalies tied to BCM or cluster-related electrical faults. Symptoms can appear randomly and may worsen with low system voltage, poor grounds, or internal module failure. In some cases the instrument cluster itself develops intermittent operation or false readings, while in others the BCM causes multiple unrelated body electrical complaints at once.
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View U1064 across all makes →Frequently Asked Questions
What does U1064 mean on Chevrolet?▼
U1064 stands for "Lost Communication With Body Control Module (Manufacturer-Specific)." U1064 is a manufacturer-specific network code that, on GM-family vehicles, indicates a module has lost serial-data communication with the Body Control Module (BCM). Each module is expected to send periodic 'I'm alive' messages, and when those messages stop arriving from the BCM for several seconds the code sets. Because the BCM controls many body and convenience functions, losing it can cause a range of electrical and feature problems. On Chevrolet specifically, this code is documented across 1 model.
What causes U1064 on Chevrolet vehicles?▼
Common causes on Chevrolet: Corroded or loose BCM ground connection, Damaged Class 2 / data bus wire (chafed, pinched, broken), Faulty Body Control Module, Loose or corroded BCM connector pins, Low or unstable battery voltage. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix U1064 on a Chevrolet?▼
Repair costs on Chevrolet range from $300 to $1,200, depending on the specific model and root cause.
Which Chevrolet models have U1064 documented?▼
Au7o has documented U1064 on 1 Chevrolet model: Malibu.