Tl* the contact owns a 2008 Cadillac cts. The contact stated that while sitting idle with the brakes depressed, the speedometer suddenly increased to 80 MPH as the rear tires began spinning uncontrollably. The contact immediately placed both feet on the brake pedal and the vehicle resumed normal operation. The vehicle was later taken to the dealer for diagnosis where the contact was advised that…
2008 Cadillac CTS cruise control problems
severe 11 complaints filed with NHTSA · avg repair $600 · see cruise control across all vehicles →
Failure mileage
Complaints
11
Recalls
0
Avg fix
$600
4crashes
2injuries
When does it fail?
Of the 11 cruise control complaints filed for the 2008 Cadillac CTS, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 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 5 model years of Cadillac CTS we track for cruise control problems, this one carries the most owner complaints on file — 11.
No new NHTSA cruise control complaint has been filed on this vehicle in over 13 years — the issue may be aging out of the active population.
The failure pattern owners describe
Buyer takeaway: The 2008 CTS has documented unintended acceleration and pedal/speedometer malfunction complaints that dealerships repeatedly failed to diagnose or repair. Buy with caution unless you can verify a clean service history and no previous acceleration incidents, as the defect appears intermittent and difficult for shops to confirm.
Owners report three distinct problem patterns in the 2008 CTS cruise/throttle system. Most frequent is unintended acceleration: the engine suddenly revs to 4000+ RPM or the vehicle surges forward even while braking, sometimes with a shrilling noise. This has happened at all speeds from a stop up to 30 MPH, and owners report hitting walls, trees, parked cars, and curbs because braking had no effect. One owner's foot became mechanically wedged between the accelerator and brake pedals, causing multiple near-collisions.
A second pattern involves the speedometer jumping to 80 MPH while the vehicle sits idle at traffic lights with brakes depressed, accompanied by rear wheels spinning uncontrollably and the car veering or surging. Both times this occurred, dealers could not reproduce the problem.
A third problem involves floor mats dislodging or becoming stuck under the brake pedal and over the accelerator, disabling the brakes. One loaner had its floor mats removed and replaced with cardboard and plastic wrap when this occurred.
Across all incidents, dealership technicians consistently reported they could not duplicate the failures, so no repairs were completed. GM responded with a throttle-body control unit reprogramming in one case, but the issue recurred immediately. Injuries and property damage have resulted from these events.
Failure modes owners describe
Unintended acceleration with braking
Engine suddenly revved or vehicle accelerated without driver input while brakes were applied or being used, sometimes accompanied by a shrilling noise. Owners reported inability to stop the vehicle even with repeated or hard braking, resulting in crashes into obstacles or other vehicles.
When: Mileages ranging from 5,000 to 41,000 miles; incidents occurred at various driving speeds (stopped, 1–30 MPH, approaching intersections)
Symptoms owners cite: Engine revving to 4000+ RPM; Vehicle accelerated despite foot on brake; Loud shrilling or brake-like noise; Vehicle surged forward uncontrollably; Braking felt ineffective or unresponsive; Vehicle traveled over obstacles (curve, boulder, sidewalk)
Repairs/costs cited: One owner reported dealer re-programmed throttle body control unit; others reported dealers unable to duplicate or diagnose the failure. No successful repairs documented.
Recalls/TSBs owners mention: Dealer technicians unable to replicate condition or locate failure. GM technician re-programmed throttle control unit in one case but issue recurred. Manufacturer offered no assistance in multiple cases per owners' reports.
Speedometer malfunction with wheel spin
Speedometer displayed erroneous reading (80 MPH while stationary) accompanied by rapid wheel or rear tire spinning, with vehicle veering or surging. Occurred independently of driver input while vehicle was stopped or nearly idle.
When: Mileages approximately 29,000–32,000 miles; occurred while vehicle was sitting at traffic stops or idle with brakes applied
Symptoms owners cite: Speedometer jumped to 80 MPH while vehicle stationary; Rear tires or wheels spun rapidly; Vehicle veered side to side abnormally; Vehicle surged forward
Repairs/costs cited: Dealer unable to duplicate failure in both reported cases. Vehicles were not repaired.
Recalls/TSBs owners mention: Manufacturer contacted but offered no assistance. ABS and check engine warning lights illuminated after one incident but no diagnosis or repair performed.
Pedal jamming (floor mat or mechanical interference)
Driver's foot or floor mat became wedged or stuck between accelerator and brake pedals, or floor mat dislodged and lodged under brake pedal and over accelerator, preventing braking and causing unintended acceleration.
When: Mileages 31,000–34,000 miles; multiple incidents reported by same owner over 6-month period
Symptoms owners cite: Foot wedged on both accelerator and brake pedal simultaneously; Floor mat unsecured and stuck between or under pedals; Loss of braking ability; Vehicle proceeded forward despite braking attempt; Near-miss collisions with other vehicles
Repairs/costs cited: One owner noted floor mats were in trunk and cardboard/plastic wrap substituted; issue not addressed. Dealers unable to duplicate failure.
Synthesized from 11 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 3 most recent
2008 Cadillac cts car accelerated. *mw the consumer stated he was pulling into a parking space, when the vehicle suddenly accelerated jumping over the sidewalk. The only thing for him to do, was to turn off the ignition. He was able to get the vehicle back on the pavement. The dealer was unable to find a problem with the vehicle. One year later, as the consumer was approaching a stop light,…
Tl* the contact owns a 2008 Cadillac cts. The contact stated that while sitting at a traffic stop with the brakes applied, the speedometer suddenly provided an erroneous reading of 80 MPH. The wheels also began spinning rapidly as the vehicle veered from side t0 side abnormally. The contact powered off the vehicle and once restarted, the ABS and check engine warning lights were illuminated. The…
Had cruise control trouble with your 2008 Cadillac CTS?
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 Cadillac CTS?
It's a meaningful issue. 11 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 9 complaints that reported odometer mileage, most cruise control failures cluster between 14,000 and 35,000 miles, with the median around 31,000. A quarter of owners report trouble before 14,000; a quarter make it past 35,000. 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/Cadillac/CTS.
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.