This Preliminary Information communication provides information to the technician about vehicle HVAC system does not always respond to requests for changes in air delivery or temperature from the HVAC controls. The technician may find that the HVAC control module will communicate with the scan tool but the HVAC door data actual counts will read 0 counts. The dealer is directed to ensure there is 12V on circuit 300 at HVAC control module before replacing module.
full bulletin at NHTSA ↗2008 Chevrolet Tahoe cruise control problems
severe 9 complaints filed with NHTSA · avg repair $600 · see cruise control across all vehicles →
Failure mileage
Complaints
9
Recalls
0
Avg fix
$600
1crash
2injuries
When does it fail?
Of the 9 cruise control complaints filed for the 2008 Chevrolet Tahoe, here's the actual mileage breakdown — failures cluster heaviest at 100,000-125,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Of the 10 model years of Chevrolet Tahoe we track for cruise control problems, this one carries the most owner complaints on file — 9.
No new NHTSA cruise control complaint has been filed on this vehicle in over 11 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering cruise control on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This Preliminary Information communication advises the technician that on a 2mode Truck that is setting a p079C, it could be a torn seal. if it was before the serail # listed
full bulletin at NHTSA ↗This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate. Dealer should advise the customer the specification for speedometer needle accuracy is +/- 2 MPH at any given speed when looking straight at the needle.
full bulletin at NHTSA ↗This Preliminary Information communication provides information to the technician about vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on or reduced engine power message. Technician may find Diagnostic Trouble Codes P2120, P2122, P2123, P2125, P2127, P2128, and/or P2138. Technician will need to inspect the Accelerator Pedal Position circuits for poor terminal tension.
full bulletin at NHTSA ↗Special Coverage Adjustment ? Throttle Position Sensor Replacement
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 2 most recent
Tl* the contact owns a 2008 Chevrolet tahoe hybrid. The contact stated that while driving at 40 MPH, the vehicle accelerated independently without warning. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 129,000.
When driving around and at a stop light the engine will go into auto stop. When applying pressure to gas pedal the vehicle will hesitate and then lurch forward. Vehicle will also get a high idle between 1500 RPM and 2200 RPM and fluctuate between those rpms. Also when idling below 1,000 rpms the engine will rev up and down as if pressure is being applied to the gas pedal but there is no pressure…
Had cruise control trouble with your 2008 Chevrolet Tahoe?
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 cruise control problem on the 2008 Chevrolet Tahoe?
It's a meaningful issue. 9 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $600.
At what mileage does the cruise control typically fail?
Across the 8 complaints that reported odometer mileage, most cruise control failures cluster between 77,120 and 129,000 miles, with the median around 98,000. A quarter of owners report trouble before 77,120; a quarter make it past 129,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $600 for cruise control 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 cruise control?
No active recalls currently cover cruise control 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/2008/Chevrolet/Tahoe.
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.