Having two issues major issues that’s causing me a $10,000 bill. The timing cover is leaking and there is a coolant bypass hose that is leaking. I have spend a lot of maintenance on this truck on maintaining it to have to remove the engine. As for the forward collision warning ive had it go off multiple times witout a vehicle there. While in cruise control ive had it unexpectedly break on me when there was no visible vehicle infront or next to me.
2021 Toyota Tacoma: adaptive cruise control problems
6 of the 81 complaints about the 2021 Toyota Tacoma describe adaptive cruise control problems.
- owner complaints
- 6
- of this car's complaints
- 7%
- recalls
- 0
Is there a fix? 5 service bulletins cover this area of the car. See below
Adaptive cruise control problems by model year
What owners say
When vehicle is driven at 85 mph (cruise control set) speedometer jolts. Speed must be reduced to 84 to resolve issue.
Auto Emergency Braking has gotten extremely dangerous and locking breaks when nothing is in front of me. Always while in cruise control mode. On long extended highways, the truck will randomly slam on the brakes and skid the back tires. It has happened 6 times now. This most recent one made us slide into the next lane and I had to turn the truck into a field (~20mph) after the truck brakes went off. To avoid on coming traffic. There was a car turning around half a mile ahead and was nowhere close. Additionally, a severe issue of premature rust and degradation is occurring on the truck. 13,000 miles and the bottom looks like it's been on the road for several years.
My vehicle stalls (won't accelerate and rough idle) forcing you to roll off the highway without warning. This has happened multiple times while in cruise control going up steep hills. It shows engine misfire and check engine. I took it to the dealer multiple times and it was determined to be bad gas. I and my insurance company paid for this dealer (Hatch Toyota Show Low AZ) for complete clean and replacement of the entire fuel system. Now 5 months later it is doing it again. The safety issue is the stalling in the middle of the highway where there is no way to get out of the way of traffic. I made sure I bought good gas by paying extra money at a new Chevron gas station with new in ground tanks. But dealer claims bad gas again. That is a separate issue.
The truck will accelerate on its own during highway speeds of 60+ MPH and residential 25+ MPH. Also accelerates when coming up to a stop sign causing me to almost hit a child in a crosswalk. There was no cruise control engaged during the incidents. I took it into the Autonation toyota dealership twice and they said they could not reproduce and or duplicate the problem. It is very frightening when it happens as it lasts between 4-5 seconds if you do not apply the brakes hard. There has not been any warning lights or anything that comes up on the dash board.
Vehicle will not hold 6th gear while in cruise control. Vehicle will suddenly down shift to 5th and sometimes 4th. This makes the vehicle surge forward abruptly.
Service bulletins that may apply
Related recalls
No recalls on record for this model year.
Questions about the 2021 Toyota Tacoma adaptive cruise
Is adaptive cruise control problems a common problem on the 2021 Toyota Tacoma?
6 of 81 owner complaints about the 2021 Toyota Tacoma (7%) mention adaptive cruise control problems. The model year with the most reports is 2006.
Is there a recall or service bulletin for this on the 2021 Toyota Tacoma?
There are 0 recalls and 5 service bulletins for the same area of the car. Check them below with your VIN.
Other symptoms on the 2021 Toyota Tacoma
VIN decoder
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