Onstar, my vehicle's core safety communication system, stopped working without notice, without an alert on the dash. Nothing. I press the onstar button and nothing happens. What if I was in trouble? Didn't have my phone? The issue was not communicated to me through the infotainment system. This seems like a serious issue.
2022 Chevrolet Suburban electrical problems
severe 13 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Complaints
13
Recalls
0
Avg fix
$850
1crash
3injuries
The failure pattern owners describe
Buyer takeaway: A used 2022 Suburban with electrical issues carries real risk: owners report sudden engine shutdowns at highway speed (including at least one resulting in a rear-end crash), telematics/OnStar failures that eliminate safety communication, and instrument cluster blackouts—none of which are reliably reproduced at dealerships. Budget for potential warranty engine replacement and understand that extended warranty coverage may not fully cover refurbished telematics part costs.
Owners report engine shutdowns with no warning during highway driving at speed (55–75 mph), forcing vehicles to coasts to the roadside or off-ramps. These shutdowns happened without warning lights or error codes beforehand; one owner was replaced under warranty with a 6.2L V8 engine carrying an active recall for defective crankshaft or connecting rod components (N252494001). Separate from engine failure, owners describe the vehicle stalling at low speed (stop lights, traffic) with an on-screen restart message, requiring shifts to neutral or park before restarting; this occurred intermittently and could not be duplicated at two different dealers.
Instrument cluster failures show blank screens or lines instead of gauges; one occurred within a week of recall service at roughly 46,000 miles. Telematics/onstar modules fail, eliminating WiFi, navigation, clock accuracy, and fob communication; one owner lost brakes, traction control, and steering function simultaneously after telematics module failure. A telecommunication module malfunction caused intermittent audio loss (including safety sounds like turn signals and sensor alerts) and sudden full-volume audio, forcing highway pulls.
One vehicle experienced uncontrolled acceleration (RPMs in the red), then a complete stop in traffic with no reverse and only slow forward motion. Another total loss-of-power event at highway speed resulted in a rear-end crash. Owners report OnStar system failures with no dashboard alert, leaving them without safety communication.
Same Chevrolet Suburban electrical reports on nearby years: 2021 · 2023
Failure modes owners describe
Engine stall/shutdown at highway speed
Complete loss of engine power during highway driving (55–75 mph) with no prior warning lights or error codes, forcing the vehicle to coast to the roadside or off-ramp.
When: 10,000 miles; highway driving at speed
Symptoms owners cite: engine shuts down without warning; no warning lights or error codes before shutdown; vehicle loses all power mid-traffic; requires towing
Repairs/costs cited: One engine replaced under warranty; replacement unit carried recall N252494001 for defective crankshaft or connecting rod components. Other engines not repaired.
Recalls/TSBs owners mention: Warranty engine replacement offered; recall N252494001 filed for 6.2L V8 crankshaft/connecting rod defect. Case filed with manufacturer for intermittent stalling but failure could not be duplicated at dealerships.
Vehicle stall at low speed with restart requirement
Engine stalls while stopped at traffic lights or during low-speed driving; vehicle displays on-screen message to restart and requires driver to shift to neutral or park before engine will restart.
When: ~10,000 miles; occurred intermittently while stopping at lights
Symptoms owners cite: vehicle stalls at traffic lights; on-screen restart message appears; requires shift to neutral or park to restart; occurs intermittently
Repairs/costs cited: Vehicle taken to two different dealers; failure could not be duplicated. No repair performed.
Recalls/TSBs owners mention: Manufacturer made aware and case filed. Dealers stated failure could not be diagnosed without reproduction.
Instrument cluster display failure
Instrument cluster displays lines instead of gauges or goes blank when attempting to start; cluster becomes non-functional.
When: ~46,448 miles; failure occurred within a week of recall service
Symptoms owners cite: cluster displays lines across screen; cluster goes blank on startup attempt; gauges do not function
Repairs/costs cited: Dealership diagnosed failed instrument cluster requiring replacement. Vehicle not repaired.
Recalls/TSBs owners mention: Four unknown recall repairs performed at dealer on 3/3/2026; failure occurred one week after. Manufacturer made aware.
Telematics module failure
Telematics/Telecommunication module malfunction causes loss of WiFi, navigation, clock accuracy, and key fob communication. One instance caused simultaneous loss of braking, traction control, and steering function.
When: Mid-life ownership; failure required extended warranty claim
Symptoms owners cite: loss of WiFi connectivity; clock displays incorrectly; no fob communication with vehicle; brakes, traction control, steering become unresponsive or dramatically reduced; warning lights flash on dash
Repairs/costs cited: Telematics module replacement requires refurbished part (sourced through third-party company Specmo) as GM no longer manufactures original. Extended warranty (GMPP) covers based on original MSRP but not full cost of refurbished replacement part.
Recalls/TSBs owners mention: GMPP covers telematics module but limits reimbursement to original MSRP, not current refurbished part cost from Specmo.
Telecommunication module audio failure
Telecommunication module malfunction causes intermittent audio loss and dropout of safety sensor sounds (turn signals, hazard signals, sensor warnings), plus sudden full-volume audio with no gradual control.
When: Random occurrences; multiple episodes during highway travel
Symptoms owners cite: audio plays intermittently, then cuts out entirely; loss of turn signal and hazard signal sounds; loss of safety sensor audio alerts; loss of key fob communication; sudden full-volume audio with no resolution except turning off vehicle; warning messages during driving; non-start issues
Repairs/costs cited: Software updates and radio head replacement did not resolve. Diagnosed as Telecommunication Module failure.
OnStar/OnStar module failure
OnStar safety communication system stops functioning without warning or dashboard alert. OnStar button becomes non-responsive; WiFi, navigation, and app connectivity lost.
When: Mid-life ownership; no prior symptoms
Symptoms owners cite: OnStar button does not respond; no dashboard alert or notification of failure; WiFi connectivity lost; navigation features unavailable; app connectivity lost; vehicle cannot perform system updates
Repairs/costs cited: OnStar module requires replacement; specifics of repair not detailed.
Uncontrolled acceleration followed by immobility
Vehicle accelerates beyond driver control with RPM gauge going into red zone, then comes to a complete stop in traffic and will not move forward with normal power; reverse function completely absent.
When: During highway driving
Symptoms owners cite: vehicle accelerates uncontrollably; RPM gauge enters red zone; vehicle stops in middle of road; no reverse function available; vehicle only moves forward slowly and reluctantly; error message on dashboard
Repairs/costs cited: Vehicle required towing; repair details not provided.
Synthesized from 13 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 3 most recent
I own a 2022 Chevrolet suburban and bought the 72k mile extended warranty. Recently my telematics module went bad which is covered by the GMPP. I lost wifi, my clock is wrong everytime etc. However General Motors no longer makes this part anymore. Parts department utilizes a third party company called specmo for a refurbished authorized unit. However, GMPP will only cover the original msrp not…
Onstar module failed, no longer have wifi, navigation or other onstar supported features. Cannot perform system updates for vehicle due to onstar module. Cannot use app due to onstar module.
Had electrical trouble with your 2022 Chevrolet Suburban?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2022 Chevrolet Suburban?
It's a meaningful issue. 13 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Based on the 13 complaints filed, electrical issues most often appear around 28,149 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2022/Chevrolet/Suburban.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.